Mechanical Drawing Interpretation
Examination (2026 Edition)|||
questions and answers with
rationales/graded A+/2026
update/100% correct /instant
download
Total Questions: 85
Time Allowed: 120 minutes
Passing Score: 70%
Topic Coverage: Orthographic projection, section views, dimensioning, GD&T
(ASME Y14.5-2018), surface finish, welding symbols, assembly drawings, and 3D
model interpretations.
Section A: Orthographic Projection & Views (Questions 1–20)
1. In third-angle projection (US standard), the top view is placed:
a) Above the front view
b) Above the front view
c) To the right of the front view
d) Below the front view
Rationale: In third-angle projection, the top view is placed above the front view; in
first-angle, it’s below.
2. A hidden feature is shown using:
a) Thick continuous line
b) Medium dashed line
c) Thin chain line
d) Phantom line
Rationale: Hidden lines are uniformly dashed, medium weight.
,3. Center lines are drawn as:
a) Dashed thick line
b) Solid thin line
c) Long-short-long thin chain line
d) Continuous wavy line
Rationale: ASME Y14.2 specifies center lines as alternating long and short dashes.
4. Which view is least likely to show a cylindrical hole’s true shape?
a) Front view
b) Top view
c) Side view
d) Isometric view
Rationale: Isometric distorts circles into ellipses; orthographic views show true
shape.
5. A surface that is parallel to the projection plane appears:
a) True size and shape
b) Foreshortened
c) As an edge line
d) Distorted
Rationale: Parallel projection yields true dimensions.
6. In an auxiliary view, the purpose is to show:
a) Hidden lines only
b) True shape of an inclined surface
c) Full assembly sequence
d) Tolerance stack
Rationale: Auxiliary views project inclined surfaces to true size.
7. The number of principal views in a standard multiview drawing is:
a) 3
b) 6
c) 4
d) 2
Rationale: Six principal directions (front, top, right, left, bottom, back).
8. A line that indicates a change in surface orientation but is not an edge is a:
a) Visible line
b) Tangent line
c) Phantom line
, d) Stitch line
Rationale: Tangent lines occur where curved surfaces meet flat surfaces.
9. Which line type is used to show alternate positions of moving parts?
a) Section line
b) Cutting plane line
c) Phantom line
d) Break line
Rationale: Phantom lines (thin long-short-short-long) show adjacent or alternate
positions.
10. In first-angle projection, the right-side view is placed:
a) Right of front view
b) Left of front view
c) Above front view
d) Below front view
Rationale: First-angle projection “unfolds” the views outward, so right side goes
to left.
11. A revolved view is typically used for:
a) Complex assemblies
b) A cross-section of a long, uniform part
c) Hidden detail
d) Dimensioning radii
Rationale: Revolved sections show cross-section directly on the part view.
12. The primary difference between a removed section and a revolved section is:
a) Scale
b) Placement (beside vs. on the part)
c) Line thickness
d) Hatching style
Rationale: Removed sections are drawn outside the part view.
13. A partial view is used when:
a) The part is too small
b) Drawing sheet is portrait orientation
c) Part is symmetrical and only half needs detailing
d) Dimensions exceed 100 mm
Rationale: Partial (broken-out) views reduce clutter on symmetrical parts.
Examination (2026 Edition)|||
questions and answers with
rationales/graded A+/2026
update/100% correct /instant
download
Total Questions: 85
Time Allowed: 120 minutes
Passing Score: 70%
Topic Coverage: Orthographic projection, section views, dimensioning, GD&T
(ASME Y14.5-2018), surface finish, welding symbols, assembly drawings, and 3D
model interpretations.
Section A: Orthographic Projection & Views (Questions 1–20)
1. In third-angle projection (US standard), the top view is placed:
a) Above the front view
b) Above the front view
c) To the right of the front view
d) Below the front view
Rationale: In third-angle projection, the top view is placed above the front view; in
first-angle, it’s below.
2. A hidden feature is shown using:
a) Thick continuous line
b) Medium dashed line
c) Thin chain line
d) Phantom line
Rationale: Hidden lines are uniformly dashed, medium weight.
,3. Center lines are drawn as:
a) Dashed thick line
b) Solid thin line
c) Long-short-long thin chain line
d) Continuous wavy line
Rationale: ASME Y14.2 specifies center lines as alternating long and short dashes.
4. Which view is least likely to show a cylindrical hole’s true shape?
a) Front view
b) Top view
c) Side view
d) Isometric view
Rationale: Isometric distorts circles into ellipses; orthographic views show true
shape.
5. A surface that is parallel to the projection plane appears:
a) True size and shape
b) Foreshortened
c) As an edge line
d) Distorted
Rationale: Parallel projection yields true dimensions.
6. In an auxiliary view, the purpose is to show:
a) Hidden lines only
b) True shape of an inclined surface
c) Full assembly sequence
d) Tolerance stack
Rationale: Auxiliary views project inclined surfaces to true size.
7. The number of principal views in a standard multiview drawing is:
a) 3
b) 6
c) 4
d) 2
Rationale: Six principal directions (front, top, right, left, bottom, back).
8. A line that indicates a change in surface orientation but is not an edge is a:
a) Visible line
b) Tangent line
c) Phantom line
, d) Stitch line
Rationale: Tangent lines occur where curved surfaces meet flat surfaces.
9. Which line type is used to show alternate positions of moving parts?
a) Section line
b) Cutting plane line
c) Phantom line
d) Break line
Rationale: Phantom lines (thin long-short-short-long) show adjacent or alternate
positions.
10. In first-angle projection, the right-side view is placed:
a) Right of front view
b) Left of front view
c) Above front view
d) Below front view
Rationale: First-angle projection “unfolds” the views outward, so right side goes
to left.
11. A revolved view is typically used for:
a) Complex assemblies
b) A cross-section of a long, uniform part
c) Hidden detail
d) Dimensioning radii
Rationale: Revolved sections show cross-section directly on the part view.
12. The primary difference between a removed section and a revolved section is:
a) Scale
b) Placement (beside vs. on the part)
c) Line thickness
d) Hatching style
Rationale: Removed sections are drawn outside the part view.
13. A partial view is used when:
a) The part is too small
b) Drawing sheet is portrait orientation
c) Part is symmetrical and only half needs detailing
d) Dimensions exceed 100 mm
Rationale: Partial (broken-out) views reduce clutter on symmetrical parts.
