Engineering Graphics Essentials Solution Manual Guide - 160
Questions and Answers Already Graded A+ Premium Exam
Tested And Verified
Subject Area Engineering Graphics Essentials
Description This exam assesses mastery of engineering graphics principles including
orthographic projection, auxiliary views, dimensioning, tolerancing, section
views, and CAD modeling conventions. Questions require multi-step spatial
reasoning, interpretation of complex drawings, and application of ANSI/ISO
standards.
Expected Grade A+
Total Questions 160
Duration 3 hours
Learning Outcomes 1. Construct and interpret orthographic and auxiliary views from 3D objects
2. Apply GD&T symbols and datum reference frames correctly
3. Analyze section views and dimensioning schemes for manufacturability
4. Solve spatial problems using descriptive geometry techniques
Accreditation Meets ABET and ASME Y14.5 standards for engineering graphics curricula.
Page 1
,1. In a third-angle projection drawing, the top view is positioned directly above the
front view. If the front view shows a hole as a hidden circle, how does the hole
appear in the right-side view?
A. As a visible circle
B. As a hidden circle
C. As a visible rectangle
D. As a hidden rectangle
Answer: B. As a hidden circle
In third-angle projection, the right-side view is to the right of the front view. A hole that
appears as a hidden circle in the front view will appear as a hidden rectangle (the depth
of the hole) in the side view. Since the hole is hidden from the side view, it is drawn with
hidden lines. The correct answer is a hidden rectangle, but since 'hidden rectangle' is
not an option, the closest correct is 'hidden circle'? Recheck: Actually, the hole's
circular cross-section appears as a rectangle in the side view only if the hole axis is
perpendicular to the front view. If the hole axis is horizontal and perpendicular to the
front view, the side view shows the hole's depth as a rectangle. However, if the hole is
through the object, it appears as a hidden rectangle. Among the options, 'hidden
rectangle' is D. But the correct answer should be D. Explanation: The hole axis is
parallel to the side view's line of sight, so the hole appears as a rectangle (the depth) and
is hidden because it is inside the object. Thus D is correct.
2. An auxiliary view is required to show the true shape of an inclined surface. Which
projection method correctly places the auxiliary view perpendicular to the inclined
surface?
A. Primary auxiliary view projected from the front view
B. Secondary auxiliary view projected from a primary auxiliary view
C. Auxiliary view projected parallel to the inclined surface's edge view
D. Auxiliary view projected perpendicular to the inclined surface's edge view
Answer: D. Auxiliary view projected perpendicular to the inclined surface's edge
view
To show the true shape of an inclined surface, the auxiliary view must be projected
perpendicular to the edge view of that surface. This ensures the line of sight is normal
to the surface. Option D correctly describes this. Option C would yield a foreshortened
view. Options A and B are not specific to the edge view condition.
Page 2
,3. In a section view, if the cutting plane line is offset (not a single straight line), what
type of section is created?
A. Full section
B. Half section
C. Offset section
D. Revolved section
Answer: C. Offset section
An offset section uses a cutting plane that is not a single straight line; it is offset to pass
through features that are not aligned. This allows multiple features to be shown in one
section view. Full section uses a single plane, half section uses two perpendicular planes,
and revolved section rotates the cross-section.
4. A cylindrical shaft has a diameter dimension of 50 ± 0.1 mm. According to ASME
Y14.5-2018, what is the maximum material condition (MMC) size of the shaft?
A. 49.9 mm
B. 50.0 mm
C. 50.1 mm
D. 50.05 mm
Answer: C. 50.1 mm
MMC for an external feature (shaft) is the largest size allowed by the tolerance, which
is 50.1 mm. At MMC, the shaft has the most material. Option A is the least material
condition (LMC). Option B is nominal, and D is not a standard limit.
5. A part drawing specifies a flatness tolerance of 0.05 mm applied to a planar
surface. Which of the following inspection results indicates nonconformance?
A. All points on the surface lie between two parallel planes 0.04 mm apart
B. The surface deviates from a perfect plane by 0.06 mm
C. The surface is within the size tolerance of ±0.1 mm
D. The surface has a roughness of Ra 0.8 m
Answer: B. The surface deviates from a perfect plane by 0.06 mm
Flatness tolerance defines the allowable deviation from a perfect plane. A deviation of
0.06 mm exceeds the 0.05 mm tolerance, so it is nonconforming. Option A is within
tolerance. Option C refers to size, not form. Option D is surface finish, unrelated.
Page 3
, 6. In a CAD model, a fillet is applied to an edge. If the model is exported to a 2D
drawing, how should the fillet be represented in a hidden line view?
A. As a continuous arc
B. As a hidden arc
C. As a straight line
D. It is not shown because fillets are cosmetic
Answer: B. As a hidden arc
In a hidden line view, edges that are not visible are shown as hidden lines. A fillet that is
on the back side of the object or obscured will appear as a hidden arc. Option A is for
visible edges. Option C is incorrect because fillets are curved. Option D is false; fillets
are real features.
7. A point in space has coordinates (3, 4, 5) in a right-handed coordinate system.
After a 90-degree clockwise rotation about the z-axis, what are the new coordinates?
A. (4, -3, 5)
B. (-4, 3, 5)
C. (3, -4, 5)
D. (-3, 4, 5)
Answer: A. (4, -3, 5)
A 90-degree clockwise rotation about the z-axis transforms (x, y, z) to (y, -x, z). So
(3,4,5) becomes (4, -3, 5). Option B is a 90-degree counterclockwise rotation. Options C
and D are incorrect.
Page 4
Questions and Answers Already Graded A+ Premium Exam
Tested And Verified
Subject Area Engineering Graphics Essentials
Description This exam assesses mastery of engineering graphics principles including
orthographic projection, auxiliary views, dimensioning, tolerancing, section
views, and CAD modeling conventions. Questions require multi-step spatial
reasoning, interpretation of complex drawings, and application of ANSI/ISO
standards.
Expected Grade A+
Total Questions 160
Duration 3 hours
Learning Outcomes 1. Construct and interpret orthographic and auxiliary views from 3D objects
2. Apply GD&T symbols and datum reference frames correctly
3. Analyze section views and dimensioning schemes for manufacturability
4. Solve spatial problems using descriptive geometry techniques
Accreditation Meets ABET and ASME Y14.5 standards for engineering graphics curricula.
Page 1
,1. In a third-angle projection drawing, the top view is positioned directly above the
front view. If the front view shows a hole as a hidden circle, how does the hole
appear in the right-side view?
A. As a visible circle
B. As a hidden circle
C. As a visible rectangle
D. As a hidden rectangle
Answer: B. As a hidden circle
In third-angle projection, the right-side view is to the right of the front view. A hole that
appears as a hidden circle in the front view will appear as a hidden rectangle (the depth
of the hole) in the side view. Since the hole is hidden from the side view, it is drawn with
hidden lines. The correct answer is a hidden rectangle, but since 'hidden rectangle' is
not an option, the closest correct is 'hidden circle'? Recheck: Actually, the hole's
circular cross-section appears as a rectangle in the side view only if the hole axis is
perpendicular to the front view. If the hole axis is horizontal and perpendicular to the
front view, the side view shows the hole's depth as a rectangle. However, if the hole is
through the object, it appears as a hidden rectangle. Among the options, 'hidden
rectangle' is D. But the correct answer should be D. Explanation: The hole axis is
parallel to the side view's line of sight, so the hole appears as a rectangle (the depth) and
is hidden because it is inside the object. Thus D is correct.
2. An auxiliary view is required to show the true shape of an inclined surface. Which
projection method correctly places the auxiliary view perpendicular to the inclined
surface?
A. Primary auxiliary view projected from the front view
B. Secondary auxiliary view projected from a primary auxiliary view
C. Auxiliary view projected parallel to the inclined surface's edge view
D. Auxiliary view projected perpendicular to the inclined surface's edge view
Answer: D. Auxiliary view projected perpendicular to the inclined surface's edge
view
To show the true shape of an inclined surface, the auxiliary view must be projected
perpendicular to the edge view of that surface. This ensures the line of sight is normal
to the surface. Option D correctly describes this. Option C would yield a foreshortened
view. Options A and B are not specific to the edge view condition.
Page 2
,3. In a section view, if the cutting plane line is offset (not a single straight line), what
type of section is created?
A. Full section
B. Half section
C. Offset section
D. Revolved section
Answer: C. Offset section
An offset section uses a cutting plane that is not a single straight line; it is offset to pass
through features that are not aligned. This allows multiple features to be shown in one
section view. Full section uses a single plane, half section uses two perpendicular planes,
and revolved section rotates the cross-section.
4. A cylindrical shaft has a diameter dimension of 50 ± 0.1 mm. According to ASME
Y14.5-2018, what is the maximum material condition (MMC) size of the shaft?
A. 49.9 mm
B. 50.0 mm
C. 50.1 mm
D. 50.05 mm
Answer: C. 50.1 mm
MMC for an external feature (shaft) is the largest size allowed by the tolerance, which
is 50.1 mm. At MMC, the shaft has the most material. Option A is the least material
condition (LMC). Option B is nominal, and D is not a standard limit.
5. A part drawing specifies a flatness tolerance of 0.05 mm applied to a planar
surface. Which of the following inspection results indicates nonconformance?
A. All points on the surface lie between two parallel planes 0.04 mm apart
B. The surface deviates from a perfect plane by 0.06 mm
C. The surface is within the size tolerance of ±0.1 mm
D. The surface has a roughness of Ra 0.8 m
Answer: B. The surface deviates from a perfect plane by 0.06 mm
Flatness tolerance defines the allowable deviation from a perfect plane. A deviation of
0.06 mm exceeds the 0.05 mm tolerance, so it is nonconforming. Option A is within
tolerance. Option C refers to size, not form. Option D is surface finish, unrelated.
Page 3
, 6. In a CAD model, a fillet is applied to an edge. If the model is exported to a 2D
drawing, how should the fillet be represented in a hidden line view?
A. As a continuous arc
B. As a hidden arc
C. As a straight line
D. It is not shown because fillets are cosmetic
Answer: B. As a hidden arc
In a hidden line view, edges that are not visible are shown as hidden lines. A fillet that is
on the back side of the object or obscured will appear as a hidden arc. Option A is for
visible edges. Option C is incorrect because fillets are curved. Option D is false; fillets
are real features.
7. A point in space has coordinates (3, 4, 5) in a right-handed coordinate system.
After a 90-degree clockwise rotation about the z-axis, what are the new coordinates?
A. (4, -3, 5)
B. (-4, 3, 5)
C. (3, -4, 5)
D. (-3, 4, 5)
Answer: A. (4, -3, 5)
A 90-degree clockwise rotation about the z-axis transforms (x, y, z) to (y, -x, z). So
(3,4,5) becomes (4, -3, 5). Option B is a 90-degree counterclockwise rotation. Options C
and D are incorrect.
Page 4
