machine elements machine elements 1-2.pptx

machine elements terms

1. A place in which metal parts are cut to the size required and put together to form mechanical units of machines, the machine so made to be used directly or indirectly in the production of the necessities and luxuries of civilization. A ) Welding shop B) Junk shop C) Machine shop D) Flower shop

2. A metal-turning machine tool in which the work, while revolving on a horizontal axis, is acted upon by a cutting tool which is made to move slowly (feed) in a direction more or less parallel to the axis of the work (longitudinal feed), or in a direction of right angles to the axis of work (cross feed). A ) Grinding machine B) Milling machine C) Lathe machine D) Drilling machine

3. A machine tool used mainly for producing holes in metal. A) Reaming machine B) Drill press C) Welding machine D) Boring machine

4. A machine which is ordinarily used for finishing flat or partly curved surfaces of metal pieces few in number and not usually over a foot or too long. A ) Shaper machine B) Planer machine C) Milling machine D) Grinding machine

5. A machine tool in which an abrasive wheel is used as a cutting tool to obtain a very high degree of accuracy and a smooth finish on metal parts, including soft and hardened steel. A ) Drilling machine B) Milling machine C) Grinding machine D) Welding machine

6. A file which is thick, rectangular-shaped file with parallel edges. A ) Hand file B) Pillar file C) Mill file D) Half-moon file

7. A file which is tapered in thickness and of uniform width. This is used for filing slots and keyways. A) Pillar file B) Hand file C) Mill file D) Half-moon file

8. Which of the following is not belong to standard shapes of file? A ) flat B) half-round C) three-square D) none of these

9. One of the three basic ways of using a file which is done by pushing the file lengthwise, straight with or slightly diagonal to the workpiece . A ) Lathe filing B) Draw filing C) Straight filing D) Back filing

10. One of the three basic ways of using a file which consists of stroking the file against the revolving workpiece held in the lathe. A) Lathe filing B) Straight filing C) Draw filing D) Mill filing

11. One of the three basic ways of using a file which is performed by grasping the file at end and pushing and drawing across the workpiece . A ) Draw filing B) Lathe filing C) Straight filing D) None of the above

12. A hand tool which is commonly used for cutting or twisting wire and chipping small parts and not to be used for tightening or loosening bolts and nuts. A ) Screwdriver B) Wrench C) Pliers D) None of the above

13. A type of pliers which is used for cutting wires and holding flat round stock. A ) Long-nose pliers B) Side-cutting pliers C) Slip joint combination pliers or mechanical pliers D) Square pliers

14. A type of pliers which is used in electrical works for cutting heavy or light wires or for cutting small nails. A ) Side-cutting pliers B) Long-nose pliers C) Mechanical pliers D) None of the above

15. A type of pliers which is used for cutting and holding fine wire. This is also useful in reaching tight places. A) Long-nose pliers B) Slide-cutting pliers C) Diagonal pliers D) None of the above

16. Which of the following is a primary forming process? A) Casting B) Turning C) Fitting D) Buffing

17. Which of the following is not a machining process? A) Turning B) Milling C) Casting D) Grinding

18. The joints produced by this method are as strong as the parent metal. A) Soldering B) Brazing C) Riveting D) Welding

19. Which one of the following is a finishing process? A ) Rolling B) Forging C) Sintering D) Engraving

20. Which of the following process affects the changes in properties of materials? A ) Shaping B) Hardening C) Sintering D) Anodizing

21. The system used for mass production of identical parts within specified limits of sizes for selection of components at random is known as: A ) Simplification B) Standardization C) Interchangeable system D) Automation

22. Alloys are extensively used in industry because they are: A ) Sufficiently soft B) Have good strength C) Malleable D) Ductile

23. Which of the following is the most abundantly used material in industry? A) Cast iron B) Mild steel C) Medium carbon steel D) High carbon steel

24. Wrought iron contains a maximum of which of the following? A ) 0.01 % carbon B) 0.3 % carbon C) 0.6 % carbon D) 2.0 % carbon

25. Pig iron is produced by reduction of iron ore in a: A ) Cupola B) Bessemer converter C) Open hearth furnace D) Blast furnace

26. Which of the following are the main alloying elements present in stainless steel? A) Nickel and manganese B) Nickel and tungsten C) Nickel and chromium D) Nickel and cobalt

27. Along with chromium and vanadium the main constituent of high speed steel is which of the following? A) Manganese B) Nickel C) Tungsten D) Vanadium

28. Grey cast iron gives grey fracture due to the presence of which of the following? A) Ferrite B) Pearlite C) Graphite D) Cementite

29. Copper is the parent metal of brass. Which of the following is the other metal present in brass? A) Lead B) Tin C) Aluminum D) Zinc

30. Gun metal contains 5 to 10 percent of which of the following materials? A) Zinc B) Lead C) Tin D) Aluminum

31. Y-alloy is an alloy of aluminum and which of the following metals? A) Manganese B) Iron C) Tin D) Copper

32. Inconel contains 80 % nickel and 14 % chromium. The other metal present in inconel is: A ) Iron B) Vanadium C) Silver D) Tin

33. Monel contains mainly with traces of iron and manganese. The main alloying element of monel is: A) Aluminum B) Copper C) Zinc D) Lead

34. Bearing materials should posses which of the following? A) High tensile strength B) High hardness C) Hard core D) High compressive strength

35. Which of the following is the trade name of polypropylene? A) Alkane B) Polyprex C) Styrene D) Durite

36. The following instrument can be used for subscribing lines parallel to the edges of a part: A) Vernier caliper B) Ordinary scale C) Hermaphordite caliper D) Combination set

37. Which of the following is the use of surface gauge? A) Laying out the work accuracy B) Check flatness of surface C) Checking surface finish D) Leveling the machine tools

38. The thickness of a thin sheet can be accurately checked with the help of: A) Ordinary scale B) Micrometer C) Combination set D) Caliper

39. V-block is used in mechanical engineering workshop to check which of the following? A) Straightness of the job B) Taper on a job C) Height of a job D) Cylindrical jobs

40. A sine bar is specified by: A) Its total length B) Diameter of the rollers C) Its weight D) Center to center distance between the rollers

41. fA ratchet screw is provided on a micrometer screw gauge to: A) Lock the measured reading B) maintain constant measuring pressure for      all readings C) Prevent wearing of screw threads D) Allow zero adjustments

42. Adjusting nut is provided on a micrometer screw gauge to: A) Allow zero adjustment B) Compensate for wear and tear between screw and nut C) Eliminate backlash D) Maintain constant measuring pressure for all readings

43. External taper of a job can be measured accurately with help of: A) Sine bar and slip gauges B) Sine bar and dial indicator C) Dial indicator and slip gauges D) Slip gauges and vernier caliper

44. Internal dovetail taper can be measured by which of the following? A) Sine bar and slip gauges B) Balls of standard size and dial indicator C) Balls of standard size and sine bar D) Balls of standard size and slip gauges

45. Combination set is used to: A) Measure long distances B) Measure cylindrical sizes of a length C) Measure angles D) Measure corner radius

46. The measuring accuracy of the following instruments is least. A ) Vernier micrometer B) Micrometer screw gauge C) Steel scale D) Optical projector

47. For filing brass or bronze pieces, the following type of file is preferred. A) Coarse cut or rough cut file B) Single cut file C) Double cut file D) Second cut file

48. The cleaning of a file is done by which of the following? A) Rubbing on wood B) Using a file card C) Dipping in dilute-alcohol D) Dipping in dilute alkali

49. Thin metal pieces can be cut with saw by: A) Using saw blade with very fine teeth B) Projecting the piece on one side of a vice and then cutting C) Placing several pieces together D) Placing the piece between two wooden pieces and cutting through the metal and wood

50. During the filing operation, the following precaution must be observed. A) Do not rub fingers over the work B) Do not rub fingers over the file C) Apply equal pressure during forward and backward stroke D) Clean the file frequently

51. A hacksaw is specified by the following parameter of its blade. A) Material B) Thickness C) Width D) Distance between two holes at its ends

52. The length of hacksaw blade is measured: A) From one extreme to another B) Between centers of two holes at its extremes C) By the length of cut D) Between the toothed length

53. Taps are used for which of the following? A) Cutting accurate square holes B) Finishing the round holes C) Cutting internal threads on jobs D) Cutting external threads in jobs

54. Scrapers are used for which of the following? A) Enlarging already drilled holes B) Increasing roundness of holes C) Removing burrs from corners D) Removing convex spots from machined surfaces

55. Anvil is used for which of the following? A) Supporting the work pieces B) Holding the work piece C) Taking out the job from the forge D) Giving finish to workpiece

56. Fullers are used for which of the following? A) Supporting the work pieces B) Holding the work piece C) Decreasing the length of the work piece D) Forming necks or grooves on cross section of a job

57. During the upsetting operation: A) Cross section of a piece decreases and length increases B) Cross section of a piece increases and length decreases C) Extra metals removed from the work piece D) Components of hexagonal shapes are produced

58. Forging of mild steel is done at about: A) 1200 o C B) 1050 o C C) 800 o C D) 600 o C

59. The process of making bolt heads by forging is known as: A) Upsetting B) Drifting C) Swaging D) Fullering

60. During forging operation, type of hammer held by the forgsmith’s helper is called as: A) Claw hammer B) Mallet C) Sledge hammer D) Ball pen hammer

61. A type of pliers which is used for cutting medium or fine wires and bending small pieces of soft metals. A) Long-nose pliers B) Side-cutting pliers C) Diagonal pliers D) Mechanical pliers

62. A hand tool which is classified as a driving tool. It is either adjustable or non-adjustable and is used for turning units, bolts, pipes, etc. A) Hammer B) Wrench C) File D) Adjustable wrench

63. A type of wrench where there is an opening at the end to fit the standard size of bolts and nuts. A) Open-end wrench B) Adjustable wrench C) Box wrench D) Pipe wrench

64. A type of wrench which has two types of jaw. One jaw is fixed and an integral part of the wrench body; the other may be adjusted. A) Box wrench B) Adjustable wrench C) Open-end wrench D) Monkey wrench

65. A type of wrench which has 12 notches around a circle that fit over the bolt head or not. He has a closed end and commonly used where it is difficult to use other types of wrenches. A) Socket wrench B) Adjustable wrench C) Box Wrench D) Pipe wrench

66. A wrench which is used for heavy-duty works. It assures firm contact on all sides of the bolt head and nut, thereby, lessening the chance of having the sides get round off. A) Socket wrench B) Ratchet wrench C) Box wrench D) Open wrench

67. A hand tool which is used for ring nuts with square slots cut on the outside diameter or drilled holes on the outer face. A) Open end wrench B) Box wrench C) Spanner wrench D) Pipe wrench

68. A hand tool used to cut small stocks to size. This tool consists two essential parts: the frame and the blade. A) Pliers B) Hacksaw C) wrench D) Hammer

69. The standard number of teeth of a hacksaw for cutting very thin tubing and sheet metal. A ) 32 teeth per inch B) 24 teeth per inch C) 18 teeth per inch D) 12 teeth per inch

70. A hand tool used to cut internal threads. A) hacksaw B) die C) tap D) Wrench

71. The standard number of teeth of a hacksaw for cutting angle iron, brass, copper and pipe. A) 14 teeth per inch B) 18 teeth per inch C) 32 teeth per inch D) 24 teeth per inch

72. Which of the following is not a principal part of a lathe machine? A) headstock B) tailstock C) tailstock spindle D) bed

73. One of the parts of tailstock of a lathe machine. A) Carriage handwheel B) rack gear C) upper casting D) dead center

74. The drill that is used to make the hole before tapping. A) toolbit B) drill bit C) tap drill D) bit drill

75. The process of cutting internal threads. A) reaming B) drilling C) boring D) tapping

76. A type of wrench which especially designed for allen -head screws only. A) box wrench B) open-end wrench C) allen wrench D) Monkey wrench

77. The various marking tools used in sheet metal works are: A) Try square, wing compass, divider and vernier caliper B) V-block, slip gauges, wing compass and sine bar C) Sine bar dial indicator and combination set D) Height gauge, combination set and optical comparator

78. A half-moon stake is used for: A) Bending, holding and supporting the components B) Making conical components C) Working edges on discs D) Forming pipes and hollow cylindrical surfaces

79. Plain butt welding process is used for welding plates approximately up to: A) 10-mm thickness B) 25-mm thickness C) 50-mm thickness D) 100-mm thickness

80. The following process is preferred for welding non-ferrous metals: A) AC high frequency B) AC normal frequency C) DC method D) AC low frequency

81. A tunnel stake is used for: A) Bending, holding and supporting the components B) Making conical components C) Working edges on discs D) Forming pipes and hollow cylindrical surfaces

82. The commonly used gases in tungsten arc welding are: A) Hydrogen and oxygen B) Hydrogen and argon C) Hydrogen and helium D) Helium and argon

83. In an arc welding process, metal is deposited on the work piece from the electrode: A) By force across the arc B) By gravity C) Due to attraction of the work piece D) Due to electromagnetic action

84. Which of the following is the tool used for making holes in red hot jobs? A) Drill B) Punch C) Hardie D) Chisel

85. It is a process of welding by local fusion with or without the use of a filler. It is the further developed way of welding and was used in building ships in the world war I. A) Fusion welding B) Oxyacetylene welding C) Resistance welding D) Shielded metal arc welding

86. In welding GMAW stands for which of the following? A) Oxyacetylene welding B) Gas tungsten arc welding C) Gas metal arc welding D) Shielded metal arc welding

87. The other term for GMAW A) SMAW B) GMAW C) MIG D) TIG

88. A type of welding which is an arc welding process which produces a uniting of metals by heating them with an arc between a tungsten (non-consumable) electrode and the work piece. Shielding of the weld area is obtained from a gas, usually argon or helium A) Oxyacetylene welding B) Gas tungsten arc welding C) Gas metal arc welding D) Shielded metal arc welding

89. How do you call the measure of coldness and hotness of a body? A) Pressure B) Volume C) Heat D) Thermometer

90. Which of the following is not a principal part of a lathe machine? A) headstock B) tailstock C) tailstock spindle D) bed

91. One of the classifications of a lathe machine that has a tailstock which can be moved longitudinally along the bed and is either bench-type or floor-type. A) precision lathe B) engine lathe C) turret lathe D) all of the above

92. A type of lathe machine used for delicate operation or when too much precision is needed in the work. A) automatic screw machine B) turret lathe C) precision lathe D) none of the above

93. Part of lathe machine where an attachment such as chuck, faceplate, and others are meshed or locked-in to add the workpiece for turning. A) back gear B) headstock spindle C) tailstock spindle D) all of the above

94. A place in which metal parts are cut to the size required and put together to form mechanical units of machines, the machine so made to be used directly or indirectly in the production of the necessities and luxuries of civilization. A) Welding shop B) Junk shop C) Machine shop D) all of the above

95. The one who has had some general machine shop experience and has made a specialty of some one machine or some one class of work, such as lathe work and planer work. He has a broader background of experience and move versality than the machine hand. A) Machine Operator B) Specialized Machinist C) Assembler D) None of the above

96. A hand tool which is classified as a very simple striking tool or driving tool. It has two most common types, the hard and the soft. A) Screw driver B) Hammer C) Pliers D) All of the above

97. A working device of a milling machine usually fastened to the indexing head spindle to hold round workpieces that are required to be machined. A) Dividing head B) Universal chuck C) Cam lock vise D) Rotary attachment

98. A work holding device of a milling machine that is used for circular milling of recesses, T-slots, and semi-circular pockets of sections. A) Dividing head B) Universal chuck C) Cam lock vise D) Rotary attachment

99. It is a cutting device of a milling machine designed to hold and drive the cutter. A) Spindle B) Arbor C) Draw-in bar D) Adapter

100. A cutting holding device of a milling machine that may either have a pilot which fits into a bearing or have no pilot but supported by a bearing sleeve which fits over it. It is used to hold the milling cutters. A ) Spindle B) Arbor C) Draw-in bar D) Adapter

101. A milling machine operation which is machining a vertical surface on the side of the workpiece using a side milling center. A) Plain or slab milling B) Face milling C) Side milling D) End milling

102. A milling machine operation which is the removing of excess material by using an end milling center. This kind of cutter has teeth sometimes in the end face or in the periphery of the cutter which are either solid or two-lipped. A) Plain or slab milling B) Face milling C) Side milling D) End milling

103. A milling machine operation which is machining two opposite sides of the material at the same time. A) Straddle milling B) Face milling C) Side milling D) End milling

104. A machine that is used primarily for producing flat surfaces that may b horizontal, vertical, and even angular planes. A) Planer machine B) Shaper machine C) Milling machine D) Drilling machine

105. A type of shaper machine also known as column shaper. The vertical column of this machine supports the ram, worktable, and drilling mechanism. A) Vertical shaper B) Hydraulic shaper C) Horizontal shaper D) Crank shaper

106. Type of shaper machine which is almost similar to crank shaper. In this machine the ram is moved by a flow of oil from a high pressure pump which acts against the piston. A) Vertical shaper B) Hydraulic shaper C) Horizontal shaper D) Crank shaper

107. A tailstock part of lathe machine that holds the upper mechanism of the tailstock. A) upper casting B) lower casting C) tailstock spindle D) Live center

108. Which of the following is not a part of the lathe machine bed. A ) tool post B) bedway C) chip pond D) legs

109. A part of carriage of the lathe machine that moves the entire carriage system longitudinally along the bed either manually or automatically. A) tool post B) cross feed assembly C) carriage handwheel D) Dog post

110. The carriage part of a lathe machine which is the lower part that holds the gearing mechanism to move the carriage either manually or automatically. A) apron B) tool post C) thread chaser D) back gear

111. A kind of centers of lathe machine attached and meshed to the tailstock spindle which remains static while the work is rotating. A) center-to-center B) dead center C) live center D) dog post

112. The process of producing a hole in the workpiece . A) boring B) drilling C) reaming D) Milling

113. A shaper machine also known as slotter shaper. A) Vertical shaper B) Hydraulic shaper C) Horizontal shaper D) Crank shaper

114. This process is performed on metal to remove internal stresses and strains and to improve its machinability . A) Carburizing B) Normalizing C) Tempering D) Quenching

115. _______ is the process of shaving off small amounts of metal using hand-held tools. This process is most often done to obtain precision alignment of machine parts; it is also done to provide shallow pockets that will hold lubricants on flat surfaces, such as machine ways. A ) Drilling B) Scraping C) Reaming D) Milling

116. ________ means putting the parts of something together. A) Laying out B) Assembling C) Installing D) Fabricating

117. _________ are tools used to turn, or drive, screws; made in may sizes and several shapes; the size is measured by the length of the blade, which is made of tool steel that is hardened and tempered. The screwdriver point for driving slotted screws should be correctly shaped; it must be fit the slot in the screw. A) Wrenches B) Hammers C) Screw drivers D) Scrapers

118. This screw driver has a bent handle; it is used where a straight screwdriver will not reach. A) Offset screw driver B) Phillips screw driver C) Mechanical screw driver D) Mill screw driver

119. __________ are tools used for cutting small wire and for holding, twisting, turning, pulling, and pushing. A ) Screw drivers B) Wrenches C) Pliers D) Hammers

120. ________ also known as combination pliers, are used for gripping; can also cut small-size wire; the slip-joint makes it possible to grip large parts. A) Slip-joint pliers B) Side cutting pliers C) Round nose pliers D) Long nose pliers

121. _____________ is a handy tool. It works in close places and the strong steel jaws lock to the work and will not slip; it acts like a vise, clamp, plier , pipe wrench, open-end wrench, or locking tool. A) Adjustable-end wrench B) Adjustable S-wrench C) Monkey wrench D) Vise-grip wrench

122. A ratchet screw is provided on a micrometer screw gauge to: A) Lock the measured reading B) maintain constant measuring pressure for all readings C) Prevent wearing of screw threads D) Allow zero adjustments

123. ____________ is a machine for pressing parts of machinery together or forcing them apart, such as pressing a shaft in or out of a pulley or gear A ) Arbor press B) Drill press C) Milling machine D) Forging machine

124. _________ are made in many sizes and types are widely used in special work holding fixtures. A) Toggle clamps B) C-clamps C) Spring clamps D) Spring clamps  

125. ________ are elements used to hold together metal parts in a form of bolts, screws, pins, and rivets A) Bolts B) Screws C) Fasteners D) Nuts

126. This fastener has a smooth, round head; a back, round finish; and a coarse thread. It is usually used to fasten a wooden part to metal. The square part under the head sinks into the wood and keeps the bolt from turning while the nut is being tightened. A) Carriage bolt B) Tap bolt C) Cap screw D) Set screw

127. These fasteners are made with heads of several different shapes and are made with either coarse or fine threads; made of steel, stainless steel, or brass. The smaller diameters are described by gage numbers, 0 – 12. These sizes range from 0.060” to 0.216”. the gage numbers are the same for both machine screws and wood screws. Larger diameters are usually designated by their sizes: ¼”, 5/8”, and 3/8”. A) Carriage bolts B) Machine screws C) Cap screws D) Set screws

128. Taps are used for which of the following? A) Cutting accurate square holes B) Finishing the round holes C) Cutting internal threads on jobs D) Cutting external threads in jobs

129. _________ are often used to fasten metal parts to wood; made with flat, round, or oval heads. The heads are slotted or recessed so they can be turned with screwdrivers. These screws are made of steel, brass, and aluminum. Steel wood screw come either bright or blued finish, or they are plated with cadmium, nickel, or chromium to prevent rust or corrosion. The diameter of these screws and machine screws is measured on on the body under the head with the American Standard Screw gage A) Wood screws B) Lag screws C) Set screw D) Cap screws

130. These screws are made with heads of several different shapes; usually finished all over and are made with either coarse or fine threads; used when it is not convenient to get at both sides of the work with wrenches. The head of this screw presses against the top piece and holds the part together. A) Wood screws B) Lag screws C) Set screw D) Cap screws  

131. Scrapers are used for which of the following? A ) Enlarging already drilled holes B) Increasing roundness of holes C ) Removing burrs from corners D) Removing convex spots from machined surfaces

132. ________ is sometimes called a lock nut or check nut; thinner than an ordinary nut and is used as a lock to keep another nut from loosening by vibration. Although the jam nut is usually put on last, the thicker nut may be put on last to make use of the greater strength A) Jam nut B) Castle nut C) Wing nut D) Self-locking nut

133. Forging possesses the following disadvantage: A) Steel components can easily be forged B) Copper and brass is forgeable C) Cast iron components can be forged D) Components can be produced to close sizes

134. _____ is part of machinist’s combination set. This protactor can be moved along the rule and locked in any position. The protractor has a flat base, permitting it to rest squarely on the workpiece . A) Plate protractor B) Bevel protractor C) Dial indicating sinometer angle gage D) Universal bevel vernier protractor

135. A _________ is a raised impression on the surface of the workpiece produced by two hardened rolls and is usually one of two patterns: diamond or straight. A) Groove B) Part C) Knurl D) Thread

136. _________ is a term applied to supeabrassive grinding wheels that refers to the amount of abrasive contained in a unit volume of usable grinding wheels. A) Abrasion B) Concentration C) Grinding index D) Grindeability

137. __________ is somewhat harder abrasive that aluminum oxide but has a sharper, more friable, and quite brittle crystalline structure. It works well on cast iron and non ferrous materials such as aluminum and copper –based alloys. A) Fused aluminum oxide B) Ceramic Aluminum oxide C) Silicon Carbide D) Cubic boron nitride

138. __________ are used to lock a nut or screw in place, thus preventing movement or loosening due to vibration. The helical spring type lock washer looks like a coil from spring.; they are hardened and tempered, and are used under a screw or nut. A) Lock washers B) Plain washers C) Tooth-type lock washer D) Square washers

139. _____ are straight-fluted, with two, three, or four flutes depending on the size of the tap. Cutting edges are ground at an angle to the centerline of the tap; the angular cutting edges cause the chips to shoot ahead of the tap. Plug-type gun taps are designated for tapping open, or through, holes. Bottoming-type gun taps are designed for tapping blind holes (holes that go only part-way into work piece), producing fine chips that can readily escape. A) Gun taps B) Serial taps C) Thread forming taps D) Hand taps

140. Accuracy of a measuring instrument is: A) Its capability to indicate the same reading again and again of a job B) The smallest value that can be measured with its use C) The closest reading to its true size D) The closeness of reading that can be taken with it

141. Which of the following is the most important characteristic of a measuring instrument? A) Speed B) Precision C) Accuracy D) Repeatability

142. The working of a caliper depends on which of the following? A) Accuracy fitted micrometer scale B) High power microscope C) Comparison of set standards by using slip gauges D) Elimination of backlash of instrument

143. The accuracy of the following instrument is maximum: A) Steel scale B) Vernier caliper C) Vernier dial gauge D) Optical projector

144. The process of joining two slip gauges for precision measurement is known as: A ) Wringing B) Sliding C) Slipping D) Cohesion

145. The depth of a blind hole can be measured by: A ) Steel scale B) Vernier caliper C) Micrometer D) Slip gauges

146. A bore of 14.46 mm diameter on a job can be measured by: A ) Steel scale B) Vernier caliper C) Micrometer screw gauge D) plug gauges

147. The following device is used for producing constant measuring pressure in micrometer screw gauges. A) Spanner B) Spindle C) Ratchet D) Thimble

148. Hammers are usually made of which of the following? A) Mild steel B) Medium carbon steel C) High carbon steel D) High speed steel

149. A mallet is generally used: A) In a fitting shop B) In a welding shop C) In sheet metal work D) In a machine shop

150. A sledge hammer is used: A) For straightening thin sheet metal jobs B) For straightening fitting jobs C) Mainly in blacksmithy shop for heavy blows D) For general fitting work

151. For filing brass or bronze pieces, the following type of file is preferred. A) Coarse cut or rough cut file B) Single cut file C) Double cut file D) Second cut file

152. Surface plate is usually made of grey cast iron because: A) It is self-lubricating due to presence of graphite flakes B) It is hard due to presence of cementite C) It can be cast easily D) It possesses good wear resistance

153. During a forging operation, plastic flow of metal takes place: A) Due to high temperature B) Due to compressive forces C ) Due to tensile forces D) Due to shearing force

154. Forging possesses the following advantage: A) Components of intricate shape can be produced B) Strength and toughness of forged components is high C) Cast iron can be forged D) Oxidation of surface does not occur

155. Which of the following is the tool used for making holes in red hot jobs? A) Drill B) Punch C) Hardie D) Chisel

156. In a sheet metal drawing, the draughtsman, in the drawing provides which of the following? A) The dimensions of the finished component B) Pattern of the drawing only C) The dimensions of the finished component as well as the drawing of patterns D) The drawing and layout of the items

157. Stainless steel sheets are used for making: A) Overhead water tanks B) Furnace bodies C) Boiling pans D) Dairy and food processing plants

158. Hand shears can be used for cutting sheets up to: A) 0.2 mm B) 0.4 mm C) 0.8 mm D) 1.6 mm

159. The various marking tools used in sheet metal works are: A) Try square, wing compass, divider and vernier caliper B) V-block, slip gauges, wing compass and sine bar C) Sine bar dial indicator and combination set D) Height gauge, combination set and optical comparator

160. A half-moon stake is used for: A) Bending, holding and supporting the components B) Making conical components C) Working edges on discs D) Forming pipes and hollow cylindrical surfaces

161. A tunnel stake is used for: A) Bending, holding and supporting the components B) Making conical components C) Working edges on discs D) Forming pipes and hollow cylindrical surfaces

162. A hollow punch is used for producing: A) Hole above 150-mm diameter B) Small holes up to 25-mm diameter C) Groves and slits D) Half round surfaces

163. In a sheet-metal work, folding bars are used for making: A) All folds from 0 o to 180 o B) Folds up to 45 o C) Right-angle folds only D) Folds above 90 o

164. Planishing is done with a: A) Mallet B) Round pen Hammer C) Panel hammer D) Claw hammer

165. The best method of measuring the thickness of a sheet is by using the following instrument. A) Sheet scale B) Ordinary caliper C) Vernier caliper D) Micrometer

166. Timber of a live tree is called: A) Stationary timber B) Round timber C) Converted timber D) Fine timber

167. Timber is extensively used because: A) It can withstand the effects of weather B) It possesses high tensile strength C) It is easily available D) It can be used again and again

168. Timber possesses the following disadvantages: A) It can be joined easily B) Cost of workmanship is low C) It is a nonconductor of heat and electricity D) It deforms easily by impact

169. Which one of the following does not fall in the category of plywood? A) Multiple boards B) Composite boards C) Block boards D) Single boards

170. Which of the following is not a measuring tool? A) Carpenter’s folding rule B) Try square C) Saw D) Meter square

171. Which of the following is not a cutting tool? A) Axe B) Carpenter’s vise C) Planer D) Saw

172. Which of the following is not a hand cutting tool? A) Band saw B) Rip saw C) Tenon saw D) Dovetail saw

173. Which of the following is not a boring tool? A) Bradawl B) C-clamp C) Auger D) Gimlet

174. The common job holding device used in wood working is: A) Adze B) Try square C) Carpentry bench D) Wheel brace

175. In a carpentry shop, dowels are used to: A) Hold the two pieces at proper position B) Hold the pieces at right angles C) Make strong joints D) Make all types of joints

176. The commonly used machine in carpentry for parting the pieces is: A) Circular saw B) Wood turning lathe C) Spindle moulding machine D) Thicknesser

177. Which of the following is not a parting tool? A) Band saw B) Adze C) Chisel D) Planer

178. Mortising is an operation of producing: A) 45 o angles for corner joints B) Square or rectangular holes in wooden pieces C) Round holes in wooden pieces D) Dowel holes in wooden pieces

179. Groove and tongue joint is commonly used for making: A) Windows B) Door panels C) Student’s benches D) Drawing boards

180. In a carpentry shop, rebating is the process of making: A) Convex surfaces B) Circular holes C) A recess on the edges of work piece D) A recess in the middle of work piece

181. Soldering is an alloy of which of the following? A) Tin and silver B) Tin and zinc C) Tin and aluminum D) Tin and lead

182. Flux is used in soldering to: A) Prevent formation of oxides B) Increase fluidity of solder metal C) Fill up the gaps between the joints D) Remove the impurities present in solder

183. A soldering iron bit is made of: A) Aluminum B) Silver C) Copper D) Stainless steel

184. Soldering iron is made wedge shaped in order to: A) Retain heat B) Retain solder C) Apply pressure on the parts to be soldered D) Decrease the thickness of soldering joint

185. The working temperature range for soldering process is: A) 60 o C to 120 o C B) 180 o C to 250 o C C) 220 o C to 300 o C D) 350 o C to 480 o C

186. Zinc chloride is used as flux in the following process. A) Soft soldering B) Brazing C) Welding D) Trepanning

187. Before starting the brazing process, cleaning of parts is necessary to avoid which of the following? A) Scale formation B) Oxidation C) Corrosion D) Slag formation

188. Spelter is another name for which of the following? A) Lead B) Tin C) Silver D) Zinc

189. Which of the following is another name for brazing? A) Soft soldering B) Hard soldering C) Low temperature forging D) Joining

190. Brazing process is mainly used for joining parts made of: A) Copper B) Aluminum C) Silver D) Zinc

191. Borax is applied to parts to be brazed in order to: A) Avoid the use of flux B) Prevent the spelter to melt quickly C) Dissolve oxides and form strong joint when work is heated D) Increase fluidity of material used for brazing

192. Brazing process is carried out in the temperature range of: A) 40 C to 150 o C B) 200 o C to 400 o C C) 500 o C to 680 o C D) 700 o C to 900 o C

193. During a resistance welding process, the pressure is released: A) As soon as the flow of current starts B) Immediately after the current supply C) During heating process D) After the weld cools

194. Seam welding is used: A) To form mesh B) For continuous welding operation C) For welding thick components D) For multisport welding purpose

195. Forge welding is mainly used for welding which of the following? A) Cast iron B) Wrought iron C) High carbon steel D) Stainless steel

196. In arc welding, the temperature of the arc is: A) 1100 o C to 1500 o C B) 1800 o C to 2400 o C C) 2500 o C to 3000 o C D) Above 3500 o C

197. Flux is used in a welding process to prevent: A) Distortion of parts B) Dirt C) Oxidation D) Carburization

198. For any arc welding operation, the value of current depends on: A) The thickness of weld B) Length of portion to be welded C) Supply voltage D) Size of the electrode

199. In welding, weld spelter means: A) Electrode coating B) Electrode thickness C) Electrode length D) Electrode current