Common-Interview-Questions-for-Engineering-Drawing.ppt

Drawing

1. Common Interview Questions
for Engineering Drawing
Engineering drawings are essential for communicating technical
information and design specifications. Mastering the fundamentals of
engineering drawing is crucial for success in the field.
Prepared By
Dr. SOMNATH DAS
Associate Professor, & TIC
Mechanical Engineering Department,
Deputy Registrar and IQAC coordinator,
Swami Vivekananda Institute of Science and Technology.

2. What is the purpose of
engineering drawings?
1Communication
Engineering drawings enable
effective communication of
design intent between
engineers, manufacturers,
and other stakeholders.
2Documentation
They serve as a record of the
design process and provide a
reference for future
modifications or
maintenance.
3Specification
Drawings precisely specify the dimensions, materials, and other
technical requirements for the fabrication of components or
systems.

3. Explain the different types of engineering
drawings.
Assembly Drawings
Show how individual components fit
together to create a complete system
or product.
Detail Drawings
Provide precise dimensions and
specifications for the manufacture of
individual parts.
Schematic Diagrams
Illustrate the functional relationships
and interconnections of components in
a system.

4. Describe the components of
an engineering drawing.
Title Block
Includes information such as the
drawing title, scale, date,
designer, and drawing number.
Dimensions
Specify the size, shape, and
location of features using
numerical values and
measurement units.
Views
Multiple orthographic projections
that show the object from
different angles.
Notes and Symbols
Provide additional information
and instructions using
standardized drawing
conventions.

5. How do you interpret and
read engineering drawings?
1
Visualize 3D
Understand how the 2D views represent the 3D object.
2
Identify Components
Recognize and distinguish the various parts and features shown.
3
Interpret Dimensions
Accurately read and apply the numeric values and tolerances.

6. Discuss the importance of
dimensioning and tolerancing.
Dimensioning
Clearly specifying the size and location of features is crucial for manufacturing.
Tolerancing
Defining acceptable variation ranges ensures the fit and function of assembled parts.
Precision
Accurate dimensioning and tolerancing enable the production of reliable, high-quality components.

7. What are the common drawing
views used in engineering
drawings?
Front View
Depicts the object as seen from the front.
Top View
Shows the object from the top, perpendicular to the front view.
Side View
Provides a side-on perspective, complementing the front and top
views.

8. Explain the role of scales in
engineering drawings.
Full Scale Exact size representation
Reduced Scale Smaller than actual size, often
used for large objects
Enlarged Scale Larger than actual size, used to
show fine details

9. How do you select the
appropriate line types and
weights?
1Line Types
Solid, dashed, dotted, and
center lines convey different
types of information.
2Line Weights
Varying line thicknesses
highlight important features
and distinguish between
elements.
3Consistency
Adhering to standard line conventions ensures clarity and
readability of the drawing.

10. Describe the importance of orthographic
projection in engineering drawings.
Accurate Representation
Orthographic views provide a precise,
multi-dimensional depiction of the
object.
Dimensional Clarity
The different views clearly
communicate the size, shape, and
spatial relationships.
Manufacturing Preparation
Orthographic drawings facilitate the
planning and execution of the
fabrication process.