Power Plant Engineering Terms for Review.pptx.ppt

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PANG MALAKASANG
PIPE ELEMENTS PART 7
(200 items)

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When you are cleaning fuel-oil When you are cleaning fuel-oil
burner tips, use a:burner tips, use a:
a.a.wire brushwire brush
b.b.pocket knifepocket knife
c.c.steel scrapersteel scraper
d.d.brass knifebrass knife

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The amount of steam generated The amount of steam generated
by a boiler is dependent upon:by a boiler is dependent upon:
a.a.the air pressurethe air pressure
b.b.the oil pressurethe oil pressure
c.c.the size of the sprayer platethe size of the sprayer plate
d.d.all of the aboveall of the above

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When installing a new gage glass When installing a new gage glass
in a water gage you should secure in a water gage you should secure
the bolts from:the bolts from:
a.a.top to bottomtop to bottom
b.b.bottom to topbottom to top
c.c.center, alternately, toward each endcenter, alternately, toward each end
d.d.top to bottom or bottom to toptop to bottom or bottom to top

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The fuel-oil heater is located:The fuel-oil heater is located:
a.a.on the suction side of the service on the suction side of the service
pumppump
b.b.on the discharge side of the transfer on the discharge side of the transfer
pumppump
c.c.on the discharge side of the service on the discharge side of the service
pumppump
d.d.between the settling tank and the between the settling tank and the
service pumpservice pump

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Boiler “pulsations” are caused by:Boiler “pulsations” are caused by:
a.a.insufficient airinsufficient air
b.b.forcing the boiler beyond capacityforcing the boiler beyond capacity
c.c.too high fuel pressuretoo high fuel pressure
d.d.all of the aboveall of the above

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In the forced draft system:In the forced draft system:
a.a.each furnace has its own faneach furnace has its own fan
b.b.one fan supplies air to all furnacesone fan supplies air to all furnaces
c.c.the fan is located in the uptakethe fan is located in the uptake
d.d.none of the abovenone of the above

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In the closed fireroom system:In the closed fireroom system:
a.a.each boiler has its own faneach boiler has its own fan
b.b.the fan is located in the uptakethe fan is located in the uptake
c.c.each furnace has its own faneach furnace has its own fan
d.d.the fireroom is supplied with air from the fireroom is supplied with air from
one fanone fan

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The air cock on a boiler is The air cock on a boiler is
located at the:located at the:
a.a.end of the superheatend of the superheat
b.b.superheater inletsuperheater inlet
c.c.top of the return headerstop of the return headers
d.d.highest point of the steam and water highest point of the steam and water
drumdrum

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Soot blowers should be used in Soot blowers should be used in
proper sequence so that:proper sequence so that:
a.a.the soot will be swept toward the the soot will be swept toward the
uptakeuptake
b.b.excess stresses will not be set up in excess stresses will not be set up in
the boilerthe boiler
c.c.the decks will not be covered with the decks will not be covered with
sootsoot
d.d.there will not be a loss of steam there will not be a loss of steam
pressurepressure

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What is the first thing you would What is the first thing you would
check on taking over a watch?check on taking over a watch?
a.a.the periscopethe periscope
b.b.the bilgesthe bilges
c.c.the water levelthe water level
d.d.the oil pressurethe oil pressure

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A boiler with its own fan (blower) A boiler with its own fan (blower)
located in the uptake is located in the uptake is
operating on:operating on:
a.a.forced draftforced draft
b.b.induced draftinduced draft
c.c.natural draftnatural draft
d.d.non of the abovenon of the above

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The valve that prevents water from The valve that prevents water from
backing out of the boiler into the backing out of the boiler into the
feedline is the:feedline is the:
a.a.skin valveskin valve
b.b.feed-check valvefeed-check valve
c.c.bottom-blow valvebottom-blow valve
d.d.feed-stop valve feed-stop valve

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Watertube Boilers have:Watertube Boilers have:
a.a.two fusible plugstwo fusible plugs
b.b.three fusible plugsthree fusible plugs
c.c.no fusible plugsno fusible plugs
d.d.one fusible plugsone fusible plugs

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A fireroom that is completely A fireroom that is completely
isolated (closed) operates onisolated (closed) operates on
a.a.induced draftinduced draft
b.b.forced draftforced draft
c.c.natural draftnatural draft
d.d.none of the abovenone of the above

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How many feedwater lines are How many feedwater lines are
connected to the boiler?connected to the boiler?
a.a.oneone
b.b.twotwo
c.c.threethree
d.d.fourfour

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If the water in the gage glass has If the water in the gage glass has
not been blown down for a period not been blown down for a period
of time, the level of the water in the of time, the level of the water in the
glass will be:glass will be:
a.a.less than that in the steam and water less than that in the steam and water
drumdrum
b.b.more than that in the steam and water more than that in the steam and water
drumdrum
c.c.the same as that in the steam and the same as that in the steam and
water drumwater drum
d.d.none of the abovenone of the above

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On taking over a watch, the On taking over a watch, the
fireman should check:fireman should check:
a.a.the bilgesthe bilges
b.b.the periscopethe periscope
c.c.the level of water in the boilersthe level of water in the boilers
d.d.all of the aboveall of the above

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One of the main purposes of One of the main purposes of
refractories in a boiler furnace is to:refractories in a boiler furnace is to:
a.a.prevent excessive furnace heat lossesprevent excessive furnace heat losses
b.b.help preheat the feedwaterhelp preheat the feedwater
c.c.protect economizer from excessive protect economizer from excessive
heatheat
d.d.help preheat the air for the furnacehelp preheat the air for the furnace

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All fuel-oil tanks are vented All fuel-oil tanks are vented
through a:through a:
a.a.check valve to the transfer pumpcheck valve to the transfer pump
b.b.check vent to the settling tankscheck vent to the settling tanks
c.c.gooseneck vent located on the main gooseneck vent located on the main
deckdeck
d.d.gooseneck vent which discharges to gooseneck vent which discharges to
the settlersthe settlers

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All fuel-oil service pump stem All fuel-oil service pump stem
valves are fitted with:valves are fitted with:
a.a.reach rods leading to a location reach rods leading to a location
outside the fireroomoutside the fireroom
b.b.safety lockssafety locks
c.c.reach rods leading to the engine roomreach rods leading to the engine room
d.d.automatic controlsautomatic controls

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Which of the following fire Which of the following fire
extinguishers would not be extinguishers would not be
found in the fireroom?found in the fireroom?
a.a.SOSO
2
b.b.COCO
22
c.c.sandsand
d.d.foam typefoam type

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What is the average fuel-oil What is the average fuel-oil
temperature range of the oil in the temperature range of the oil in the
discharge line to the burners?discharge line to the burners?
a.a.150° - 200°150° - 200°
b.b.160° - 180°160° - 180°
c.c.180° - 200°180° - 200°
d.d.200° - 220°200° - 220°

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Which of the following is a Which of the following is a
common type of oil burner?common type of oil burner?
a.a.bethlehembethlehem
b.b.toddtodd
c.c.B & wB & w
d.d.all of the aboveall of the above

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The boiler gage glasses should The boiler gage glasses should
be blown down:be blown down:
a.a.every 8 hoursevery 8 hours
b.b.every 12 hoursevery 12 hours
c.c.once a dayonce a day
d.d.at the beginning of every watchat the beginning of every watch

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The double-bottom tanks in a The double-bottom tanks in a
ship are used for:ship are used for:
a.a.storing the fuel oilstoring the fuel oil
b.b.storing fresh waterstoring fresh water
c.c.ballasting when ship is lightballasting when ship is light
d.d.all of the aboveall of the above

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In a fuel-oil service system the In a fuel-oil service system the
quick closing fuel-oil shutoff valve is quick closing fuel-oil shutoff valve is
located between the:located between the:
a.a.fuel-oil heaters and the discharge fuel-oil heaters and the discharge
strainersstrainers
b.b.master fuel-oil shutoff valve and the master fuel-oil shutoff valve and the
boilerboiler
c.c.service pumps and the fuel-oil heatersservice pumps and the fuel-oil heaters
d.d.suction strainers and the service suction strainers and the service
pumpspumps

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A fuel-oil meter placed between the A fuel-oil meter placed between the
fuel-oil service pumps and the fuel-fuel-oil service pumps and the fuel-
oil heaters would be a:oil heaters would be a:
a.a.supermetersupermeter
b.b.vertical metervertical meter
c.c.hot-type meterhot-type meter
d.d.cold-type metercold-type meter

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The condensate from the coils in The condensate from the coils in
the fuel-oil heaters to the fuel oil the fuel-oil heaters to the fuel oil
heaters goes to the:heaters goes to the:
a.a.auxiliary exhaust systemauxiliary exhaust system
b.b.bilgesbilges
c.c.feedwater heaterfeedwater heater
d.d.observation tankobservation tank

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The valve between the fuel-oil The valve between the fuel-oil
headers and the burner valve is headers and the burner valve is
called the:called the:
a.a.base valvebase valve
b.b.leakoff valveleakoff valve
c.c.root valveroot valve
d.d.safety valvesafety valve

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The safety device located in the The safety device located in the
crown sheet of a scotch boiler is crown sheet of a scotch boiler is
called a:called a:
a.a.bubble plugbubble plug
b.b.crown plugcrown plug
c.c.fusible plugfusible plug
d.d.safety plugsafety plug

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““Skin” valves are located on Skin” valves are located on
the:the:
a.a.ship’s hullship’s hull
b.b.watertight bulkheadwatertight bulkhead
c.c.boiler drumboiler drum
d.d.tank topstank tops

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In the turbine lube-oil cooler which In the turbine lube-oil cooler which
of the following is kept at the of the following is kept at the
highest pressure?highest pressure?
a.a.the airthe air
b.b.the steamthe steam
c.c.the waterthe water
d.d.the oilthe oil

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Which of the following types of Which of the following types of
packing would be used on steam packing would be used on steam
joints?joints?
a.a.asbestosasbestos
b.b.neopreneneoprene
c.c.metallicmetallic
d.d.A and CA and C

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A “flame scanner” is used to:A “flame scanner” is used to:
a.a.control the amount of air to the burnercontrol the amount of air to the burner
b.b.check the color of the oil flamecheck the color of the oil flame
c.c.shut off the oil flow to the burner if the shut off the oil flow to the burner if the
flame goes outflame goes out
d.d.none of the abovenone of the above

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One purpose of the bottom blow One purpose of the bottom blow
valve is to:valve is to:
a.a.clean soot from the tubesclean soot from the tubes
b.b.drain the economizerdrain the economizer
c.c.regulate amount of water going to the regulate amount of water going to the
boilerboiler
d.d.remove scale and sediment from the remove scale and sediment from the
boilerboiler

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The bottom blow valve on a The bottom blow valve on a
watertube boiler is located on the:watertube boiler is located on the:
a.a.front headersfront headers
b.b.mud drummud drum
c.c.steam-and-water drumsteam-and-water drum
d.d.superheatersuperheater

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If the water goes out of sight in the If the water goes out of sight in the
gage glass, the first thing to do is:gage glass, the first thing to do is:
a.a.add extra feedwateradd extra feedwater
b.b.close the feed-stop valveclose the feed-stop valve
c.c.secure all burnerssecure all burners
d.d.speed up the feed pumpspeed up the feed pump

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The condensate from the F. O. The condensate from the F. O.
heaters is led to the:heaters is led to the:
a.a.condensercondenser
b.b.double-bottomdouble-bottom
c.c.feed-and-filter tankfeed-and-filter tank
d.d.observation tankobservation tank

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What precaution must be taken What precaution must be taken
before using steam soot blowers?before using steam soot blowers?
a.a.drain thoroughlydrain thoroughly
b.b.decrease boiler steam pressuredecrease boiler steam pressure
c.c.wear gloves when operatingwear gloves when operating
d.d.blow tubes only during the dayblow tubes only during the day

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The damper in the air duct between The damper in the air duct between
the fan and the boiler is usually a:the fan and the boiler is usually a:
a.a.spring-loaded valvespring-loaded valve
b.b.butterfly-type valvebutterfly-type valve
c.c.gate valvegate valve
d.d.double-beat valvedouble-beat valve

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The appliance used in a Scotch The appliance used in a Scotch
boiler to help circulate the water boiler to help circulate the water
when getting up steam is called a:when getting up steam is called a:
a.a.hydrofoilhydrofoil
b.b.hydrokineterhydrokineter
c.c.manometermanometer
d.d.pyrometerpyrometer

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The sides of a combustion chamber The sides of a combustion chamber
in a Scotch boiler are called:in a Scotch boiler are called:
a.a.bottom sheetsbottom sheets
b.b.crown sheetscrown sheets
c.c.support sheetssupport sheets
d.d.wrapper sheetswrapper sheets

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A faulty steam trap on a fuel-oil A faulty steam trap on a fuel-oil
heater can cause:heater can cause:
a.a.a fuel oil leak a fuel oil leak
b.b.a lowering of the heating capacity of a lowering of the heating capacity of
the heaterthe heater
c.c.an increase in the heating capacity of an increase in the heating capacity of
the heaterthe heater
d.d.an increase in oil temperaturean increase in oil temperature

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Another name for the fuel-oil Another name for the fuel-oil
suction strained is the:suction strained is the:
a.a.cold strainercold strainer
b.b.fine strainerfine strainer
c.c.hot strainerhot strainer
d.d.magnetic strainermagnetic strainer

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Which of the following steps would Which of the following steps would
you take if you found an you take if you found an
accumulation of oil on the furnace accumulation of oil on the furnace
floor?floor?
a.a.close all air registersclose all air registers
b.b.close fuel-oil discharge valveclose fuel-oil discharge valve
c.c.open all air registersopen all air registers
d.d.put in smaller burner tipsput in smaller burner tips

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Too low F. O. temperature will Too low F. O. temperature will
cause:cause:
a.a.excessive steam temperatureexcessive steam temperature
b.b.increase in superheater temperatureincrease in superheater temperature
c.c.the F. O. pump to vibratethe F. O. pump to vibrate
d.d.poor combustion and smoky firespoor combustion and smoky fires

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A “manometer”measures:A “manometer”measures:
a.a.air pressureair pressure
b.b.steam pressuresteam pressure
c.c.oil pressureoil pressure
d.d.water pressurewater pressure

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The hydrokineter in a Scotch The hydrokineter in a Scotch
boiler is used to:boiler is used to:
a.a.force water into the boilerforce water into the boiler
b.b.retard the hot gas circulationretard the hot gas circulation
c.c.take a sample of boiler watertake a sample of boiler water
d.d.warm up and circulate the water when warm up and circulate the water when
bringing up steambringing up steam

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In order to increase back In order to increase back
pressure, one must:pressure, one must:
a.a.close in on the atmospheric lineclose in on the atmospheric line
b.b.close in on the back-pressure valveclose in on the back-pressure valve
c.c.increase the boiler pressureincrease the boiler pressure
d.d.open up the back-pressure valveopen up the back-pressure valve

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The recirculating line on the burner The recirculating line on the burner
valve returns the oil to the:valve returns the oil to the:
a.a.double bottomsdouble bottoms
b.b.settling tankssettling tanks
c.c.suction side of service pumpsuction side of service pump
d.d.transfer pumptransfer pump

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The two main purposes of the The two main purposes of the
main condenser are to:main condenser are to:
a.a.convert exhaust steam to waterconvert exhaust steam to water
b.b.raise back-pressure on the condenserraise back-pressure on the condenser
c.c.reduce back-pressure on main enginereduce back-pressure on main engine
d.d.remove air from exhaust steamremove air from exhaust steam

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Salt in boiler water usually Salt in boiler water usually
comes from:comes from:
a.a.leaks in drain valvesleaks in drain valves
b.b.leaky condenser tubesleaky condenser tubes
c.c.leaky heating coilsleaky heating coils
d.d.zinc plates being corroded awayzinc plates being corroded away

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According to furnace arrangement, According to furnace arrangement,
a “D” type boiler is a: a “D” type boiler is a:
a.a.divided-furnace boilerdivided-furnace boiler
b.b.low-pressure boilerlow-pressure boiler
c.c.multiple-furnace boilermultiple-furnace boiler
d.d.single-furnace boilersingle-furnace boiler

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In addition to the generating tubes In addition to the generating tubes
in a boiler, which of the following in a boiler, which of the following
also function as a generating also function as a generating
tubes?tubes?
a.a.water-wall tubeswater-wall tubes
b.b.water-screen tubeswater-screen tubes
c.c.superheater tubesuperheater tube
d.d.A and BA and B

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The normal fuel-oil temperature The normal fuel-oil temperature
usually vary from:usually vary from:
a.a.160 to 180 F160 to 180 F
b.b.180 to 200 F180 to 200 F
c.c.200 to 220 F200 to 220 F
d.d.any of the aboveany of the above

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If a boiler is giving off black smoke, If a boiler is giving off black smoke,
a possible cause could be:a possible cause could be:
a.a.dirty burnersdirty burners
b.b.fuel-air temperature too lowfuel-air temperature too low
c.c.insufficient airinsufficient air
d.d.any of the aboveany of the above

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If a large section of the roof tile in a If a large section of the roof tile in a
three-pass boiler fell out, an three-pass boiler fell out, an
immediate indication would be:immediate indication would be:
a.a.a decrease in stack temperaturea decrease in stack temperature
b.b.an increase in boiler pressurean increase in boiler pressure
c.c.an increase in stack pressurean increase in stack pressure
d.d.an increase in stack temperaturean increase in stack temperature

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The feedwater check valves are The feedwater check valves are
located on the:located on the:
a.a.feedlines to the boilerfeedlines to the boiler
b.b.feed-pump suction linefeed-pump suction line
c.c.hotwellhotwell
d.d.shell of the feedwater heatershell of the feedwater heater

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The deaerating (D.C.) heater is The deaerating (D.C.) heater is
used in:used in:
a.a.all steam plantsall steam plants
b.b.the closed-type feedwater systemthe closed-type feedwater system
c.c.the open-type feddwater systemthe open-type feddwater system
d.d.the low-pressure type steam plantthe low-pressure type steam plant

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Another name for the fuel-oil Another name for the fuel-oil
discharge strainer is the:discharge strainer is the:
a.a.coarse strainercoarse strainer
b.b.cold strainercold strainer
c.c.hot strainerhot strainer
d.d.magnetic strainermagnetic strainer

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Air chambers are attached to the:Air chambers are attached to the:
a.a.air pumpsair pumps
b.b.discharge side of all pumpsdischarge side of all pumps
c.c.discharge side of reciprocating discharge side of reciprocating
pumpspumps
d.d.feed pumps onlyfeed pumps only

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The condenser vacuum feed valve The condenser vacuum feed valve
is open and the water in the is open and the water in the
reserve tank runs dry. The result reserve tank runs dry. The result
will be:will be:
a.a.a loss of condensate watera loss of condensate water
b.b.a loss of vacuuma loss of vacuum
c.c.a loss of water in the boilera loss of water in the boiler
d.d.an increase in back-pressurean increase in back-pressure

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One pound of fuel oil contains One pound of fuel oil contains
approximately: approximately:
a.a.5,000 BTU5,000 BTU
b.b.18,000 BTU18,000 BTU
c.c.25,000 BTU25,000 BTU
d.d.50,000 BTU50,000 BTU

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A pump that has one steam A pump that has one steam
cylinder and two liquuid cylinder is cylinder and two liquuid cylinder is
called a:called a:
a.a.double pumpdouble pump
b.b.one-to-two pumpone-to-two pump
c.c.tandem pumptandem pump
d.d.triplex pumptriplex pump

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Another name for an air Another name for an air
preheater is:preheater is:
a.a.a deaeratora deaerator
b.b.an aeratoran aerator
c.c.an economizeran economizer
d.d.none of the abovenone of the above

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What pump takes fuel oil from the What pump takes fuel oil from the
double bottoms and discharges it to double bottoms and discharges it to
the settling tanks?the settling tanks?
a.a.general service pumpgeneral service pump
b.b.service pumpservice pump
c.c.sump pumpsump pump
d.d.transfer pumptransfer pump

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The Bailey feedwater regulator The Bailey feedwater regulator
works on the principle of:works on the principle of:
a.a.hydroelectrichydroelectric
b.b.pressure-temperaturepressure-temperature
c.c.thermoelectricthermoelectric
d.d.thermohydraulicthermohydraulic

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The accumulated water in the The accumulated water in the
previous question is disposed of by:previous question is disposed of by:
a.a.using the centrifugal purifierusing the centrifugal purifier
b.b.boiling outboiling out
c.c.pumping to settling tank and draining pumping to settling tank and draining
offoff
d.d.not pumping out all the oil in the tanknot pumping out all the oil in the tank

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The presence of oil or scale on The presence of oil or scale on
boiler tubes causes:boiler tubes causes:
a.a.electrolysiselectrolysis
b.b.galvanic actiongalvanic action
c.c.overheatingoverheating
d.d.oxidationoxidation

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The air register on an The air register on an
extinguished fire should be: extinguished fire should be:
a.a.kept closedkept closed
b.b.kept half-openkept half-open
c.c.kept openkept open
d.d.removed and placed in rackremoved and placed in rack

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How much time should be taken to How much time should be taken to
raise steam on a water tube boiler?raise steam on a water tube boiler?
a.a.1 hour1 hour
b.b.2 hours2 hours
c.c.4 hours4 hours
d.d.5 hours5 hours

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The retarders in a scotch boiler The retarders in a scotch boiler
are found in the:are found in the:
a.a.combustion chambercombustion chamber
b.b.firetubesfiretubes
c.c.furnacefurnace
d.d.watertubeswatertubes

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The suuperheater is used to:The suuperheater is used to:
a.a.increase temperature of feedwaterincrease temperature of feedwater
b.b.help the fuel oilhelp the fuel oil
c.c.raise the steam pressureraise the steam pressure
d.d.remove moisture from steamremove moisture from steam

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The coils in the feedwater The coils in the feedwater
heater are secured by:heater are secured by:
a.a.bonnetsbonnets
b.b.nipplesnipples
c.c.union fittingsunion fittings
d.d.weldingwelding

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Which of the following lines are Which of the following lines are
connected to the atmospheric line?connected to the atmospheric line?
a.a.deck-exhaust linedeck-exhaust line
b.b.safety-valve discharge linessafety-valve discharge lines
c.c.auxiliary-exhaust lineauxiliary-exhaust line
d.d.all of the aboveall of the above

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The oil burners on conventional The oil burners on conventional
vessels should be cleaned at least:vessels should be cleaned at least:
a.a.every hourevery hour
b.b.once a dayonce a day
c.c.once a watchonce a watch
d.d.once a weekonce a week

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The fuel-oil service pump takes The fuel-oil service pump takes
suction from the: suction from the:
a.a.contaminated inspection tankscontaminated inspection tanks
b.b.double-bottom tanksdouble-bottom tanks
c.c.feed-and-filter tankfeed-and-filter tank
d.d.settling tankssettling tanks

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If a boiler is smoking “white smoke” If a boiler is smoking “white smoke”
a possible cause could be:a possible cause could be:
a.a.fuel-oil pressure too lowfuel-oil pressure too low
b.b.fuel-oil temperature too lowfuel-oil temperature too low
c.c.too little airtoo little air
d.d.too much airtoo much air

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An “attemporator” is another An “attemporator” is another
name for a:name for a:
a.a.desuperheaterdesuperheater
b.b.dry pipedry pipe
c.c.hydrokineterhydrokineter
d.d.superheatersuperheater

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The air pressurre supplied to The air pressurre supplied to
the boilers is measure in:the boilers is measure in:
a.a.inches of waterinches of water
b.b.psipsi
c.c.psiapsia
d.d.psigpsig

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The inlet sides of condenser The inlet sides of condenser
tubes are rolled and flared to:tubes are rolled and flared to:
a.a.allow a smoother entrance flow of allow a smoother entrance flow of
circulating watercirculating water
b.b.allow for expansion and contractionallow for expansion and contraction
c.c.make tubes strongermake tubes stronger
d.d.strengthen the tube sheetsstrengthen the tube sheets

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Before blowing down a boiler, Before blowing down a boiler,
always:always:
a.a.increase air pressureincrease air pressure
b.b.open air ventopen air vent
c.c.open the skin valvesopen the skin valves
d.d.reduce steam pressurereduce steam pressure

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A bucket-type air pump has:A bucket-type air pump has:
a.a.one set of valveone set of valve
b.b.three sets of valvethree sets of valve
c.c.two sets of valvetwo sets of valve
d.d.no valveno valve

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The low-suction strainers are The low-suction strainers are
located between the:located between the:
a.a.fuel-oil heaters and discharge fuel-oil heaters and discharge
strainersstrainers
b.b.settling tanks and service pumpssettling tanks and service pumps
c.c.service pumps and fuel-oil heatersservice pumps and fuel-oil heaters
d.d.transfer pump and settling tankstransfer pump and settling tanks

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A pyrometer is a:A pyrometer is a:
a.a.high-temperature thermometerhigh-temperature thermometer
b.b.manometermanometer
c.c.pneumercatorpneumercator
d.d.thermometer marked in centigradethermometer marked in centigrade

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If it difficult to maintain the proper If it difficult to maintain the proper
steam pressure, it will be necessary steam pressure, it will be necessary
to change all the tips and:to change all the tips and:
a.a.change from automaticchange from automatic
b.b.make no changesmake no changes
c.c.readjust the setting of the oil-air ratio readjust the setting of the oil-air ratio
controllercontroller
d.d.speed up the fan (blower)speed up the fan (blower)

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A stay tube in a Scotch boiler A stay tube in a Scotch boiler
helps to support the:helps to support the:
a.a.boiler shellboiler shell
b.b.crown sheetcrown sheet
c.c.furnacefurnace
d.d.tube sheetstube sheets

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If the main circulator breaks down, If the main circulator breaks down,
it is possible to obtain cooling water it is possible to obtain cooling water
from:from:
a.a.general service pumpgeneral service pump
b.b.evaporator speed pumpevaporator speed pump
c.c.fire pumpfire pump
d.d.A and CA and C

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How much time should be taken to How much time should be taken to
raise steam on a firetube boiler?raise steam on a firetube boiler?
a.a.6-8 hours6-8 hours
b.b.8-10 hours8-10 hours
c.c.4-6 hours4-6 hours
d.d.1-3hours1-3hours

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Oil meters register the amount Oil meters register the amount
used in:used in:
a.a.poundspounds
b.b.gallonsgallons
c.c.barrelsbarrels
d.d.quartsquarts

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The air entering the furnace is The air entering the furnace is
given a swirling motion by the:given a swirling motion by the:
a.a.diffuserdiffuser
b.b.impellerimpeller
c.c.conecone
d.d.all of the aboveall of the above

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All fuel-oil tanks are fitted with:All fuel-oil tanks are fitted with:
a.a.heating coilsheating coils
b.b.air ventsair vents
c.c.suction valvessuction valves
d.d.all of the aboveall of the above

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An Edwards-type air pump has:An Edwards-type air pump has:
a.a.no valvesno valves
b.b.two sets of valvestwo sets of valves
c.c.three sets of valvesthree sets of valves
d.d.one set of valvesone set of valves

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When draining a Scotch Boiler When draining a Scotch Boiler
the:the:
a.a.manhole must be removedmanhole must be removed
b.b.horsecollar must be removedhorsecollar must be removed
c.c.belly plug must be removedbelly plug must be removed
d.d.crown sheet must be removedcrown sheet must be removed

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The auxiliary exhaust steam is The auxiliary exhaust steam is
used to:used to:
a.a.heat the feedwaterheat the feedwater
b.b.drive the bilge pumpdrive the bilge pump
c.c.heat the fuel oilheat the fuel oil
d.d.drive small auxiliariesdrive small auxiliaries

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Too high F. O. temperature will Too high F. O. temperature will
cause:cause:
a.a.a decrease in boiler pressurea decrease in boiler pressure
b.b.burners to smokeburners to smoke
c.c.carbon-scale deposits on the F.O. carbon-scale deposits on the F.O.
heater coilsheater coils
d.d.fires to go outfires to go out

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The relief valve on the F. O. The relief valve on the F. O.
transfer pump discharges:transfer pump discharges:
a.a.back to the transfer pump suction lineback to the transfer pump suction line
b.b.to the double-bottom tanksto the double-bottom tanks
c.c.to the F.O. service suction lineto the F.O. service suction line
d.d.to the setting tanksto the setting tanks

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The main engine of a steam-The main engine of a steam-
turbine plant uses:turbine plant uses:
a.a.back-pressure steamback-pressure steam
b.b.desuperheated steamdesuperheated steam
c.c.saturated steamsaturated steam
d.d.superheated steamsuperheated steam

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Which of the following methods Which of the following methods
can be used to clean the can be used to clean the
firesides of a boiler?firesides of a boiler?
a.a.steam lancesteam lance
b.b.water hosewater hose
c.c.soot blowerssoot blowers
d.d.any of the aboveany of the above

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The dry pipe is located:The dry pipe is located:
a.a.in the bottom of the steam-and-water-in the bottom of the steam-and-water-
drumdrum
b.b.in the superheaterin the superheater
c.c.in the top of the steam-and-water-in the top of the steam-and-water-
drumdrum
d.d.on the bottom of the furnaceon the bottom of the furnace

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A pyrometer measures:A pyrometer measures:
a.a.oil temperatureoil temperature
b.b.steam pressuresteam pressure
c.c.stack temperaturestack temperature
d.d.steam temperaturesteam temperature

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The internal feedline is located:The internal feedline is located:
a.a.between the feed pump and the boilerbetween the feed pump and the boiler
b.b.in the bottom of steam-and-water in the bottom of steam-and-water
drumdrum
c.c.in the superheaterin the superheater
d.d.in the upper part of the furnacein the upper part of the furnace

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The fusible plug in a Scotch Boiler The fusible plug in a Scotch Boiler
is screwed into the:is screwed into the:
a.a.crown sheetcrown sheet
b.b.furnace air registerfurnace air register
c.c.rear tube sheetrear tube sheet
d.d.wrapper sheetwrapper sheet

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The excess steam pressure in the The excess steam pressure in the
back-pressure system exhausts to back-pressure system exhausts to
the:the:
a.a.atmosphereatmosphere
b.b.atmosphere through a relief valveatmosphere through a relief valve
c.c.feedwater heaterfeedwater heater
d.d.main condensermain condenser

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The process applied to iron pipe The process applied to iron pipe
which retards corrosion is called:which retards corrosion is called:
a.a.annealingannealing
b.b.galvanizinggalvanizing
c.c.solderingsoldering
d.d.tinningtinning

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The complete unit housing the The complete unit housing the
burner, air scoop, bladed cone, burner, air scoop, bladed cone,
etc., is called the:etc., is called the:
a.a.air-duct assemblyair-duct assembly
b.b.boiler assemblyboiler assembly
c.c.burner assemblyburner assembly
d.d.registerregister

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It is possible for water to get into It is possible for water to get into
the fuel oil by:the fuel oil by:
a.a.leaks in the hullleaks in the hull
b.b.condensation in the tankscondensation in the tanks
c.c.being pumped aboard with the oilbeing pumped aboard with the oil
d.d.all of the aboveall of the above

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The point of highest pressure in the The point of highest pressure in the
steam and water cycle is found steam and water cycle is found
between the:between the:
a.a.boiler and the main engineboiler and the main engine
b.b.boiler and the feed pumpboiler and the feed pump
c.c.feed pump and the boilerfeed pump and the boiler
d.d.steam-and-water drum and steam-and-water drum and
superheatersuperheater

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In order for oil to burn properly, In order for oil to burn properly,
it must:it must:
a.a.be at the proper temperaturebe at the proper temperature
b.b.be atomized properlybe atomized properly
c.c.have sufficient air to support have sufficient air to support
combustioncombustion
d.d.all of the aboveall of the above

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Special types of periscopes are Special types of periscopes are
fitted to boilers to observe:fitted to boilers to observe:
a.a.combustion gases entering the uptakecombustion gases entering the uptake
b.b.oil atomization in the furnaceoil atomization in the furnace
c.c.smoke going out of stacksmoke going out of stack
d.d.water level in the boilerswater level in the boilers

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The purpose of the salinometer The purpose of the salinometer
cock is to:cock is to:
a.a.blow down the boiler to reduce the blow down the boiler to reduce the
solids in the boiler watersolids in the boiler water
b.b.blow down the gage glassblow down the gage glass
c.c.obtain a sample of boiler water for obtain a sample of boiler water for
testingtesting
d.d.test for oil in the watertest for oil in the water

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A “scoop” condenser must be:A “scoop” condenser must be:
a.a.a single-pass condensera single-pass condenser
b.b.a counterflow condensera counterflow condenser
c.c.a double-pass condensera double-pass condenser
d.d.an inverted condenseran inverted condenser

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In a manually controlled In a manually controlled
feedwater system the proper feedwater system the proper
water level is maintained by:water level is maintained by:
a.a.operating the recirculating valveoperating the recirculating valve
b.b.operating the feed-stop valveoperating the feed-stop valve
c.c.opening the feed-pump steam valveopening the feed-pump steam valve
d.d.operating the feed-check valveoperating the feed-check valve

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The holes in Kinghorn-valve The holes in Kinghorn-valve
discs:discs:
a.a.prevent water from leaking from prevent water from leaking from
condensercondenser
b.b.let water seep between discs to form a let water seep between discs to form a
water sealwater seal
c.c.make them lighter in weightmake them lighter in weight
d.d.prevent water from leaking to air prevent water from leaking to air
pumppump

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The valve closest to the boiler in The valve closest to the boiler in
the feedline is the:the feedline is the:
a.a.feed-pump discharge valvefeed-pump discharge valve
b.b.feed-check valvefeed-check valve
c.c.feed-stop valvefeed-stop valve
d.d.feedwater heater bypass valvefeedwater heater bypass valve

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The greatest pressure in a steam The greatest pressure in a steam
and water cycle is found between and water cycle is found between
the:the:
a.a.condensate pump and the feedwater condensate pump and the feedwater
heaterheater
b.b.feed pump and boilerfeed pump and boiler
c.c.boiler and feed pumpboiler and feed pump
d.d.boiler and the main engineboiler and the main engine

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A Bourdon steam-pressure A Bourdon steam-pressure
gage is always fitted with a:gage is always fitted with a:
a.a.double shut-off valvedouble shut-off valve
b.b.loop in the pipe to prevent live steam loop in the pipe to prevent live steam
from getting to the tubefrom getting to the tube
c.c.nonreturn shut-off valvenonreturn shut-off valve
d.d.plain pipe with no shutoff valveplain pipe with no shutoff valve

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In order to reduce the possibility of In order to reduce the possibility of
flarebacks, one should always:flarebacks, one should always:
a.a.use a torch to light off burneruse a torch to light off burner
b.b.prevent oil from accumulating on prevent oil from accumulating on
furnace floorfurnace floor
c.c.use large amounts of excess airuse large amounts of excess air
d.d.keel all air registers open at all timeskeel all air registers open at all times

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What would be the first indication of What would be the first indication of
a broken coil in the feedwater a broken coil in the feedwater
heater?heater?
a.a.the boiler water level would go upthe boiler water level would go up
b.b.the relief valve on the shell would the relief valve on the shell would
openopen
c.c.the boiler water level would go downthe boiler water level would go down
d.d.the feed pump would slow downthe feed pump would slow down

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The function of the water-screen The function of the water-screen
tubes between the superheater and tubes between the superheater and
the furnace in a “D” type boiler is to:the furnace in a “D” type boiler is to:
a.a.protect the superheater from the protect the superheater from the
radiant heat of the furnaceradiant heat of the furnace
b.b.carry away some of the heat from the carry away some of the heat from the
furnace refractoryfurnace refractory
c.c.preheat the water going to the preheat the water going to the
economizereconomizer
d.d.none of the abovenone of the above

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Tube retardness in Scotch Tube retardness in Scotch
boilers are used to:boilers are used to:
a.a.slow down the water circulation slow down the water circulation
around the tubesaround the tubes
b.b.prevent the tubes from saggingprevent the tubes from sagging
c.c.slow down the combustion gasesslow down the combustion gases
d.d.speed up water circulation around the speed up water circulation around the
tubestubes

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The steam that is discharged from The steam that is discharged from
the safety valves goes to the:the safety valves goes to the:
a.a.atmospheric line atmospheric line
b.b.auxiliary condenserauxiliary condenser
c.c.bilgesbilges
d.d.main condensermain condenser

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How can extra feedwater be How can extra feedwater be
obtained for the boilers when the obtained for the boilers when the
ship is at sea?ship is at sea?
a.a.by using the steam injectorby using the steam injector
b.b.by taking suction from the potable by taking suction from the potable
water tankswater tanks
c.c.by putting both feed pumps into by putting both feed pumps into
operationoperation
d.d.by opening the extra feed valve on the by opening the extra feed valve on the
main condensermain condenser

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On automatic combustion control:On automatic combustion control:
a.a.reduce the number of the burners reduce the number of the burners
when the oil pressure approaches the when the oil pressure approaches the
minimum specifiedminimum specified
b.b.keep the same number of burners keep the same number of burners
going at all timesgoing at all times
c.c.change the size of the burner tips in change the size of the burner tips in
all burners when the pressure dropsall burners when the pressure drops
d.d.A and CA and C

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The stroke of the pump in the The stroke of the pump in the
previous question is:previous question is:
a.a.3”3”
b.b.4”4”
c.c.6”6”
d.d.8”8”

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Firetube boilers have been Firetube boilers have been
replaced by watertube boilers replaced by watertube boilers
because:because:
a.a.firetube boilers are not able to meet firetube boilers are not able to meet
the demand for rapid changes in load the demand for rapid changes in load
that a watertube boiler can meetthat a watertube boiler can meet
b.b.firetube boilers have more firetube boilers have more
complicated constructioncomplicated construction
c.c.firetube boilers are more difficult to firetube boilers are more difficult to
repairrepair
d.d.firetube boilers are more difficult to firetube boilers are more difficult to
examine and inspectexamine and inspect

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A sudden increase in lube-oil A sudden increase in lube-oil
pressure in a turbine installation pressure in a turbine installation
could be caused by:could be caused by:
a.a.a leak in the cooling watera leak in the cooling water
b.b.clogging somewhere in the systemclogging somewhere in the system
c.c.slowing down of main turbineslowing down of main turbine
d.d.too much cooling watertoo much cooling water

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What prevents the exhaust steam What prevents the exhaust steam
from passing through the feedwater from passing through the feedwater
heater too rapidly?heater too rapidly?
a.a.an atmospheric valvean atmospheric valve
b.b.a relief valve on the heater shella relief valve on the heater shell
c.c.a trap installed on the condensate a trap installed on the condensate
outletoutlet
d.d.a check valve installed on the a check valve installed on the
condensate outletcondensate outlet

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You would give a boiler a surface You would give a boiler a surface
blowdown when:blowdown when:
a.a.the salinity increasesthe salinity increases
b.b.oil appears on the surface of the water oil appears on the surface of the water
in the gage glassin the gage glass
c.c.scum appears on the surface of the scum appears on the surface of the
water on the gage glasswater on the gage glass
d.d.all of the aboveall of the above

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A “solenoid trip valve” on a fuel A “solenoid trip valve” on a fuel
line:line:
a.a.shuts off the fuel-oil supply in event shuts off the fuel-oil supply in event
of air lossof air loss
b.b.shuts off the air supply in event of fire shuts off the air supply in event of fire
lossloss
c.c.shuts of the fuel-oil supply if the fire shuts of the fuel-oil supply if the fire
goes outgoes out
d.d.A and CA and C

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When operating with automatic When operating with automatic
combustion control always use:combustion control always use:
a.a.at least two different sized tips in the at least two different sized tips in the
burnersburners
b.b.larger tips on the boiler with lower larger tips on the boiler with lower
pressurepressure
c.c.only one size tip throughout the only one size tip throughout the
systemsystem
d.d.smaller tips on the boiler with higher smaller tips on the boiler with higher
pressurepressure

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The function of the water-screen The function of the water-screen
tubes in a boiler is to:tubes in a boiler is to:
a.a.allow the superheater tubes to absorb allow the superheater tubes to absorb
more radiant heat from the furnacemore radiant heat from the furnace
b.b.prevent the direct heat of the furnace prevent the direct heat of the furnace
from reaching the superheater tubesfrom reaching the superheater tubes
c.c.heat the feedwater on its way to the heat the feedwater on its way to the
steam-and-water drumsteam-and-water drum
d.d.desuperheat the steam for auxiliariesdesuperheat the steam for auxiliaries

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The brick wall at the back of the The brick wall at the back of the
furnace in a Scotch boiler is furnace in a Scotch boiler is
called a:called a:
a.a.bridge wallbridge wall
b.b.crown wallcrown wall
c.c.plate wallplate wall
d.d.side wallside wall

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Most gages in the fireroom are:Most gages in the fireroom are:
a.a.Bourdon-tube typeBourdon-tube type
b.b.dual-purposedual-purpose
c.c.manometersmanometers
d.d.thermocouplesthermocouples

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The “steam injector” is used to The “steam injector” is used to
pump water:pump water:
a.a.into the boilers in case the main feed into the boilers in case the main feed
pumps stoppumps stop
b.b.out of the main condenserout of the main condenser
c.c.out of the auxiliary condenserout of the auxiliary condenser
d.d.to the boilers when being tested by to the boilers when being tested by
USCGUSCG

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A duplex strainer is better than a A duplex strainer is better than a
simplex strainer because it:simplex strainer because it:
a.a.removes more foreign matter from the removes more foreign matter from the
fuel oilfuel oil
b.b.causes a smaller pressure drop causes a smaller pressure drop
through the unitthrough the unit
c.c.can handle oil with a lower viscositycan handle oil with a lower viscosity
d.d.can be cleaned while it is in usecan be cleaned while it is in use

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What would you do before giving a What would you do before giving a
boiler a “bottom blow”?boiler a “bottom blow”?
a.a.decrease the oil pressuredecrease the oil pressure
b.b.decrease the steam pressuredecrease the steam pressure
c.c.let the water level drop slightly below let the water level drop slightly below
normalnormal
d.d.raise the water level about 2”above raise the water level about 2”above
normalnormal

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Which of the following would you Which of the following would you
do before blowing tubes with steam do before blowing tubes with steam
soot blowers?soot blowers?
a.a.notify bridgenotify bridge
b.b.drain soot-blower lines thoroughlydrain soot-blower lines thoroughly
c.c.increase steam pressure slightlyincrease steam pressure slightly
d.d.all of the aboveall of the above

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Which of the following could Which of the following could
cause a “flareback”?cause a “flareback”?
a.a.oil pressure too highoil pressure too high
b.b.trying to relight burner from hot trying to relight burner from hot
brickworkbrickwork
c.c.oil temperature too highoil temperature too high
d.d.opening air registers too quicklyopening air registers too quickly

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““Sputtering” oil burners might Sputtering” oil burners might
indicate:indicate:
a.a.oil pressure too highoil pressure too high
b.b.fuel oil too hotfuel oil too hot
c.c.water in the fuel oilwater in the fuel oil
d.d.fuel oil too coldfuel oil too cold

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The boiler feedwater in the The boiler feedwater in the
feedwater heater is heated by:feedwater heater is heated by:
a.a.auxiliary exhaust steamauxiliary exhaust steam
b.b.desuperheated steamdesuperheated steam
c.c.steam from the boilersteam from the boiler
d.d.superheated steamsuperheated steam

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In a reciprocating engine steam In a reciprocating engine steam
and water cycle, the level of the and water cycle, the level of the
water in the feed-and-filter tank is water in the feed-and-filter tank is
controlled by the:controlled by the:
a.a.pneumercatorpneumercator
b.b.manometer valvemanometer valve
c.c.chronometer valvechronometer valve
d.d.feed-pump bypass valvefeed-pump bypass valve

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To change the firing rate of a boiler:To change the firing rate of a boiler:
a.a.change the size of the burner tipschange the size of the burner tips
b.b.close the recirculating valveclose the recirculating valve
c.c.open the recirculating valveopen the recirculating valve
d.d.start the second fuel-oil service pumpstart the second fuel-oil service pump

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The main purpose of the The main purpose of the
superheater vent valve on a boiler superheater vent valve on a boiler
is to:is to:
a.a.remove air from the superheatersremove air from the superheaters
b.b.insure a flow of steam through the insure a flow of steam through the
superheaters when steam is being raised superheaters when steam is being raised
on the boileron the boiler
c.c.lower the steam pressure on a boiler that lower the steam pressure on a boiler that
has just been securedhas just been secured
d.d.remove water from the superheaterremove water from the superheater

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The F. O. service pump must have:The F. O. service pump must have:
a.a.only one operating valveonly one operating valve
b.b.a means of shutting down from a means of shutting down from
outside the machinery spaceoutside the machinery space
c.c.two sets of operating valves in the two sets of operating valves in the
fireroomfireroom
d.d.a discharge to the bilgea discharge to the bilge

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The feed-stop valve is located:The feed-stop valve is located:
a.a.on the feed pumpon the feed pump
b.b.on the main steam lineon the main steam line
c.c.nearest the steam-and-water drum on nearest the steam-and-water drum on
the feedlinethe feedline
d.d.on the superheateron the superheater

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When thae fuel-oil temperature When thae fuel-oil temperature
is too high it causes:is too high it causes:
a.a.flarebacksflarebacks
b.b.high fuel-oil pressurehigh fuel-oil pressure
c.c.white smoke to come from the stackwhite smoke to come from the stack
d.d.carbon deposits on the fuel-oil heater carbon deposits on the fuel-oil heater
coilscoils

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How would you vent the How would you vent the
superheater when getting up steam superheater when getting up steam
or securing a boiler?or securing a boiler?
a.a.open the throttle drainopen the throttle drain
b.b.open the vacuum breakeropen the vacuum breaker
c.c.open superheater vent drainopen superheater vent drain
d.d.open air cockopen air cock

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Before burner is lit off:Before burner is lit off:
a.a.close air registerclose air register
b.b.open air registeropen air register
c.c.change air registerchange air register
d.d.lower fuel-oil temperaturelower fuel-oil temperature

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In an automatically controlled In an automatically controlled
feedwater system, the proper water feedwater system, the proper water
level is maintained by:level is maintained by:
a.a.operating the auxiliary feed-check operating the auxiliary feed-check
valvevalve
b.b.opening the feedwater heater bypassopening the feedwater heater bypass
c.c.the fluctuations in water level in the the fluctuations in water level in the
boilerboiler
d.d.bypass the deaeratorbypass the deaerator

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When entering a “closed fireroom When entering a “closed fireroom
system”:system”:
a.a.one enters directly into the fireroomone enters directly into the fireroom
b.b.one must pass through an air lockone must pass through an air lock
c.c.one enters directly from the engine one enters directly from the engine
roomroom
d.d.one must wear protective glassesone must wear protective glasses

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The purpose of the surface blow The purpose of the surface blow
valve is to:valve is to:
a.a.clean the tubesclean the tubes
b.b.removes sludge and scale from the removes sludge and scale from the
boilerboiler
c.c.removes oil and scum from surface of removes oil and scum from surface of
waterwater
d.d.drain boilerdrain boiler

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The studs on waterwall tubes The studs on waterwall tubes
are to:are to:
a.a.help keep them cleanhelp keep them clean
b.b.give added surface area to tubesgive added surface area to tubes
c.c.strengthen the tubesstrengthen the tubes
d.d.help support the tubes in placehelp support the tubes in place

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Which of the following valves are Which of the following valves are
arranged in a “Y” branch fitting?arranged in a “Y” branch fitting?
a.a.superheater safety valvessuperheater safety valves
b.b.main-feed stop and check valvemain-feed stop and check valve
c.c.boiler-drum safety valvesboiler-drum safety valves
d.d.back-pressure valve and atmospheric back-pressure valve and atmospheric
valvevalve

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Listed in sequence, iron pipe Listed in sequence, iron pipe
sizes are:sizes are:
a.a.¼, ½, ¾, 7/8, 1¼, ½, ¾, 7/8, 1
b.b.¼, 3/8, ½, 7/8, 1¼, 3/8, ½, 7/8, 1
c.c.¼, 3/8, ½, ¾, 1¼, 3/8, ½, ¾, 1
d.d.¼, 3/8, ½, 5/8, ¾, 1¼, 3/8, ½, 5/8, ¾, 1

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The Edwards-type air pump The Edwards-type air pump
has:has:
a.a.one set of valveone set of valve
b.b.two set of valvestwo set of valves
c.c.three set of valvesthree set of valves
d.d.none of the abovenone of the above

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When the temperature of the When the temperature of the
feedwater leaving the feedwater feedwater leaving the feedwater
heater is too low, it is an indication heater is too low, it is an indication
that the:that the:
a.a.reducing valve is not functioning reducing valve is not functioning
properlyproperly
b.b.back pressure is too lowback pressure is too low
c.c.back pressure is too highback pressure is too high
d.d.atmospheric exhaust valve is openatmospheric exhaust valve is open

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The division plate in a two-pass The division plate in a two-pass
condenser:condenser:
a.a.supports the tubessupports the tubes
b.b.separates the water from the steamseparates the water from the steam
c.c.separate the air from the steamseparate the air from the steam
d.d.prevents the circulating water from prevents the circulating water from
passing directly to overboard passing directly to overboard
dischargedischarge

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In a variable capacity oil burner In a variable capacity oil burner
the amount of oil going to the the amount of oil going to the
atomizer is controlled by the:atomizer is controlled by the:
a.a.root valveroot valve
b.b.oil-return line valveoil-return line valve
c.c.burner valveburner valve
d.d.all of the aboveall of the above

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The size of a reciprocating pump is The size of a reciprocating pump is
stamped on the builder’s plate 3” x stamped on the builder’s plate 3” x
4” x 6”. The diameter of the steam 4” x 6”. The diameter of the steam
cylinder is:cylinder is:
a.a.3”3”
b.b.4”4”
c.c.6”6”
d.d.8”8”

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The purpose of dry pipe is to:The purpose of dry pipe is to:
a.a.remove air from the steamremove air from the steam
b.b.supply dry air to the boilersupply dry air to the boiler
c.c.cut down oxygen content oxygen of cut down oxygen content oxygen of
the boiler waterthe boiler water
d.d.restrict priming and reduce moisture restrict priming and reduce moisture
in the steamin the steam

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““Cyclone separators” are Cyclone separators” are
located in the”located in the”
a.a.furnacefurnace
b.b.steam-and-water drumsteam-and-water drum
c.c.feed systemfeed system
d.d.fuel-oil linefuel-oil line

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An economizer is used to:An economizer is used to:
a.a.heat the fuel oilheat the fuel oil
b.b.heat air before it enters the furnaceheat air before it enters the furnace
c.c.desuperheat the steamdesuperheat the steam
d.d.heat the feedwater before it enters the heat the feedwater before it enters the
boilerboiler

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Watertube boiler tubes are:Watertube boiler tubes are:
a.a.welded in placewelded in place
b.b.increase temperature of feedwaterincrease temperature of feedwater
c.c.rolled inrolled in
d.d.threaded and held with nutsthreaded and held with nuts

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When you light a fire in a boiler, When you light a fire in a boiler,
you must always:you must always:
a.a.use a torchuse a torch
b.b.close the air register before lighting close the air register before lighting
offoff
c.c.open the burner valve halfwayopen the burner valve halfway
d.d.open the burner valve before you open the burner valve before you
open the root valveopen the root valve

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Waterwalls are used to:Waterwalls are used to:
a.a.drain water from the headersdrain water from the headers
b.b.carry off excess heat from the surface carry off excess heat from the surface
wallswalls
c.c.strengthen the furnace brickworkstrengthen the furnace brickwork
d.d.heat the air before it enters the heat the air before it enters the
furnacefurnace

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The recirculating valve is used to:The recirculating valve is used to:
a.a.recirculate the feedwater in the recirculate the feedwater in the
economizereconomizer
b.b.drain water from the oil linedrain water from the oil line
c.c.drain the service pumpdrain the service pump
d.d.recirculate and heat the fuel oil prior recirculate and heat the fuel oil prior
to lighting offto lighting off

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The purpose of the salinometer The purpose of the salinometer
cock is to:cock is to:
a.a.test for oil in the watertest for oil in the water
b.b.blow down the gage glassblow down the gage glass
c.c.see how much water is in the boilersee how much water is in the boiler
d.d.obtain a sample of boiler water for obtain a sample of boiler water for
testingtesting

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The valve which shuts off a liquid The valve which shuts off a liquid
line with the least amount of line with the least amount of
resistance to flow is the:resistance to flow is the:
a.a.globe valveglobe valve
b.b.check valvecheck valve
c.c.gate valvegate valve
d.d.relief valverelief valve

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The exhaust steam that condenses The exhaust steam that condenses
in the feedwater heater:in the feedwater heater:
a.a.is fed back to the boileris fed back to the boiler
b.b.discharges to the auxiliary condenserdischarges to the auxiliary condenser
c.c.discharges to the feed-and-filter tankdischarges to the feed-and-filter tank
d.d.discharges to the hotwell through a discharges to the hotwell through a
traptrap

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A “pneumercator” measures:A “pneumercator” measures:
a.a.oil pressureoil pressure
b.b.air levelair level
c.c.liquid levelliquid level
d.d.air pressureair pressure

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A scoop condenser is a:A scoop condenser is a:
a.a.double-pass condenserdouble-pass condenser
b.b.vertical condenservertical condenser
c.c.single-pass condensersingle-pass condenser
d.d.counterflow condensercounterflow condenser

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The purpose of inspection plates on The purpose of inspection plates on
the main condenser is to:the main condenser is to:
a.a.give access to clean water boxesgive access to clean water boxes
b.b.check the steam side of the check the steam side of the
condensercondenser
c.c.check tubes without removing check tubes without removing
condenser headscondenser heads
d.d.check the steam bafflecheck the steam baffle

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The purpose of the steam baffle The purpose of the steam baffle
in a condenser is to:in a condenser is to:
a.a.separate the steam from the fresh separate the steam from the fresh
waterwater
b.b.prevent hot steam from hitting directly prevent hot steam from hitting directly
on the cooler tubeson the cooler tubes
c.c.separate the steam from the salt waterseparate the steam from the salt water
d.d.prevent steam from mixing with the prevent steam from mixing with the
cooling watercooling water

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The purpose of water-drum The purpose of water-drum
baffles is to:baffles is to:
a.a.give added strength to the drumgive added strength to the drum
b.b.prevent steam from mixing with the prevent steam from mixing with the
waterwater
c.c.direct the path of the feedwater direct the path of the feedwater
through the drumthrough the drum
d.d.prevent the water in the drum from prevent the water in the drum from
sloshing around when the ship is sloshing around when the ship is
rollingrolling

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The ratio of the density of a The ratio of the density of a
substance to the density of some substance to the density of some
standard substance is calledstandard substance is called
a.a.relative densityrelative density
b.b.specific gravityspecific gravity
c.c.specific densityspecific density
d.d.Relative gravityRelative gravity

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The total energy in a compressible The total energy in a compressible
or incompressible fluid flowing or incompressible fluid flowing
across and suction in a pipeline is a across and suction in a pipeline is a
function of:function of:
a.a.pressure and velocitypressure and velocity
b.b.pressure, density and velocitypressure, density and velocity
c.c.pressure, density and velocity, and pressure, density and velocity, and
viscosityviscosity
d.d.flow energy, kinetic energy, height flow energy, kinetic energy, height
above datum and internal energyabove datum and internal energy

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The locus or elevations to which The locus or elevations to which
water will rise in the piezometer water will rise in the piezometer
tube is termedtube is termed
a.a.Energy gradientEnergy gradient
b.b.Friction headFriction head
c.c.Hydraulic gradientHydraulic gradient
d.d.Critical depthCritical depth

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The heat per unit mass per degree The heat per unit mass per degree
change in temperature is called:change in temperature is called:
a.a.Heat fusionHeat fusion
b.b.Heat of vaporizationHeat of vaporization
c.c.Relative heatRelative heat
d.d.Specific heatSpecific heat

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The temperature to which the air The temperature to which the air
must be cooled at constant must be cooled at constant
pressure to produce saturation is pressure to produce saturation is
called:called:
a.a.Boiling pointBoiling point
b.b.Dew pointDew point
c.c.Critical pointCritical point
d.d.Triple pointTriple point

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The mass of water vapor per unit The mass of water vapor per unit
volume of airvolume of air
a.a.absolute humidityabsolute humidity
b.b.specific humidityspecific humidity
c.c.relative humidityrelative humidity
d.d.critical humiditycritical humidity

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The heat transfer due to motion of The heat transfer due to motion of
matter caused by a change in matter caused by a change in
density is called:density is called:
a.a.radiationradiation
b.b.convectionconvection
c.c.conductionconduction
d.d.absorptionabsorption

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When the expansion of When the expansion of
compression of gas takes place compression of gas takes place
without transfer of heat to or from without transfer of heat to or from
the gas, the process is called:the gas, the process is called:
a.a.isothermalisothermal
b.b.isentropicisentropic
c.c.adiabaticadiabatic
d.d.reversiblereversible

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The external pressure applied to a The external pressure applied to a
confined fluid increases the confined fluid increases the
pressure of every point in the fluid pressure of every point in the fluid
by an amount equal to the external by an amount equal to the external
pressure. This is known as:pressure. This is known as:
a.a.Archimedes PrincipleArchimedes Principle
b.b.Torricelli’s TheoremTorricelli’s Theorem
c.c.Bernoulli’s TheoremBernoulli’s Theorem
d.d.Pascal’s LawPascal’s Law

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Weight per unit volume is termed Weight per unit volume is termed
as:as:
a.a.Specific gravitySpecific gravity
b.b.DensityDensity
c.c.Weight densityWeight density
d.d.PressurePressure

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The speed with which a liquid The speed with which a liquid
escapes from a vessel through an escapes from a vessel through an
orifice is given by:orifice is given by:
a.a.Archimedes PrincipleArchimedes Principle
b.b.Torricelli’s TheoremTorricelli’s Theorem
c.c.Bernoulli’s TheoremBernoulli’s Theorem
d.d.Flow equationFlow equation

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When gas is heated at constant When gas is heated at constant
volume, the process is called:volume, the process is called:
a.a.isotropicisotropic
b.b.isobaricisobaric
c.c.isometricisometric
d.d.adiabaticadiabatic

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When gas is heated at constant When gas is heated at constant
pressure, the process is called:pressure, the process is called:
a.a.isometricisometric
b.b.adiabaticadiabatic
c.c.polytropicpolytropic
d.d.isobaricisobaric

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An instrument that measures An instrument that measures
densitydensity
a.a.ManometerManometer
b.b.HydrometerHydrometer
c.c.BarometerBarometer
d.d.Hydraulic meterHydraulic meter

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This law states that pressure This law states that pressure
applied at a point in a confined applied at a point in a confined
liquid is transmitted equally to all liquid is transmitted equally to all
other points.other points.
a.a.Boyle’s LawBoyle’s Law
b.b.Charles’ LawCharles’ Law
c.c.Len’s LawLen’s Law
d.d.Pascal’s LawPascal’s Law

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The temperature at which its vapor The temperature at which its vapor
pressure is equal to the pressure pressure is equal to the pressure
exerted on the liquidexerted on the liquid
a.a.Absolute humidityAbsolute humidity
b.b.CalorimeterCalorimeter
c.c.Boiling pointBoiling point
d.d.Thermal energyThermal energy

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Type of turbine that has high Type of turbine that has high
pressure and low pressure is calledpressure and low pressure is called
a.a.compound turbinecompound turbine
b.b.gas turbinegas turbine
c.c.impulse turbineimpulse turbine
d.d.compound turbinecompound turbine

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The hydraulic formula CA√2gh is The hydraulic formula CA√2gh is
used to find the:used to find the:
a.a.quantity of discharge through an quantity of discharge through an
orificeorifice
b.b.length of pipe in a closed networklength of pipe in a closed network
c.c.velocity of flow in a co=losed velocity of flow in a co=losed
conduitconduit
d.d.friction factor of a pipefriction factor of a pipe

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If gas is expanded isothermally in a If gas is expanded isothermally in a
cylindercylinder
a.a.No work is doneNo work is done
b.b.Heat must have been abstracted to Heat must have been abstracted to
make the process possiblemake the process possible
c.c.Heat must have been added during Heat must have been added during
the processthe process
d.d.It must have been completely It must have been completely
insulatedinsulated

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All of the following statements All of the following statements
about wet bulb temperature are about wet bulb temperature are
true, EXCEPTtrue, EXCEPT
a.a.Wet bulb temperature equals adiabatic Wet bulb temperature equals adiabatic
saturation temperaturesaturation temperature
b.b.Wet bulb temperature is the only Wet bulb temperature is the only
temperature necessary to determine temperature necessary to determine
grains water per lb of dry airgrains water per lb of dry air
c.c.Wet bulb temperature lies numerically Wet bulb temperature lies numerically
between dew point and dry bulb between dew point and dry bulb
temperature for unsaturated systemstemperature for unsaturated systems
d.d.Wet bulb temperature equals both dry-bulb Wet bulb temperature equals both dry-bulb
and dew point temperature at 100% and dew point temperature at 100%
relative humidityrelative humidity

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In a four-cycle gasoline engine, In a four-cycle gasoline engine,
when properly tuned, the value when properly tuned, the value
operation will be such that the:operation will be such that the:
a.a.Intake-opens after the dead centerIntake-opens after the dead center
b.b.Exhaust opens before bottom dead Exhaust opens before bottom dead
centercenter
c.c.Intake closes before bottom dead Intake closes before bottom dead
centercenter
d.d.Exhaust closes before bottom dead Exhaust closes before bottom dead
centercenter

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Which of the following is member of Which of the following is member of
the halogen family?the halogen family?
a.a.sodiumsodium
b.b.fluorinefluorine
c.c.hydrogen chloridehydrogen chloride
d.d.phosphorusphosphorus

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A sample substance to which a A sample substance to which a
chemical formula can be assigned, chemical formula can be assigned,
whose weight is equal to its formula whose weight is equal to its formula
weight is formed a:weight is formed a:
a.a.moleculemolecule
b.b.molemole
c.c.grain equivalent weightgrain equivalent weight
d.d.atomatom

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Hydrogen is common to all:Hydrogen is common to all:
a.a.acidsacids
b.b.saltssalts
c.c.oxidesoxides
d.d.metalsmetals

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Which of the following does not Which of the following does not
illustrate the effect of temperature illustrate the effect of temperature
or pressure on gas solubility?or pressure on gas solubility?
a.a.Air bubbles form on the sides of a Air bubbles form on the sides of a
warm glass of waterwarm glass of water
b.b.Soda pop is bottled under pressureSoda pop is bottled under pressure
c.c.Boiling frees water gasesBoiling frees water gases
d.d.Air is more humid on rainy daysAir is more humid on rainy days

Power Plant Engineering Terms for Review.pptx.ppt

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