Orthographic Projection
1.
The top, front, and bottom views align in this manner:
A.
Horizontally
B.
Vertically
C.
According to the planar views
D.
Parallel to the frontal plane
Answer & Explanation
Answer: Option B
2.
If a plane is parallel to the plane of projection, it appears:
A.
True size
B.
As a line or edge
C.
Foreshortened
D.
As an oblique surface
Answer & Explanation
Answer: Option A
3.
This line pattern is composed of three dashes, one long dash on each end with a
short dash in the middle:
A.
Object
B.
Hidden
C.
Center
D.
Phantom
Answer & Explanation
Answer: Option C
4.
This is the plane upon which the top view is projected:
A.
Horizontal
B.
Frontal
C.
Profile
D.
Base
Answer & Explanation
Answer: Option A
5.
An advantage of this type of view is that each view shows the object all the way
through as if it were transparent:
A.
Planar
B.
Horizontal
C.
Auxiliary
D.
Orthographic
Answer & Explanation
Answer: Option D
6.
This type of surface is tipped to all principal planes of projection and does not
appear true size in any standard view:
A.
Foreshortened
B.
Parallel
C.
Orthographic
D.
Oblique
Answer & Explanation
Answer: Option D
1.
Visible lines always take precedence over hidden lines or centerlines.
A.
True
B.
False
Answer & Explanation
Answer: Option A
2.
Any object can be viewed from six mutually perpendicular views.
A.
True
B.
False
Answer & Explanation
Answer: Option A
3.
A total of three principal views are arranged in a standard way.
A.
True
B.
False
Answer & Explanation
Answer: Option B
4.
Height is shown in the left-side, top, right-side, and bottom views.
A.
True
B.
False
Answer & Explanation
Answer: Option B
5.
A plane surface always projects either on edge or as a surface in any view.
A.
True
B.
False
Answer & Explanation
6.
Answer: Option A
If an edge is perpendicular to a plane of projection, it appears as a point.
A.
True
B.
False
Answer & Explanation
Answer: Option A
7.
The depth dimensions in the top and side views do not necessarily correspond.
A.
True
B.
False
Answer & Explanation
Answer: Option B
8.
The profile plane is the plane upon which the side view is projected.
A.
True
B.
False
Answer & Explanation
Answer: Option A
9.
The rear, left-side, front, and right-side views align horizontally.
A.
True
B.
False
Answer & Explanation
Answer: Option A
10. Width is shown in the rear, top, front, and bottom views.
A.
True
B.
False
Answer & Explanation
Answer: Option A
11. If an angle is in an inclined plane, it may be projected either larger or smaller than
the true angle depending on its position.
A.
True
B.
False
Answer & Explanation
Answer: Option A
12. Usually screws, bolts, shafts, tubes, and other elongated parts are drawn in a
vertical position in the front view.
A.
True
B.
False
Answer & Explanation
Answer: Option B
13. A normal surface is perpendicular to a plane of projection.
A.
True
B.
False
Answer & Explanation
Answer: Option B
14. In orthographic views, dashed lines represent features that would be hidden behind
other surfaces.
A.
True
B.
False
Answer & Explanation
Answer: Option A
15. Drawings are two-dimensional representations of objects that allow you to record
sizes and shapes precisely.
A.
True
B.
False
Answer & Explanation
Answer: Option A
16. Any principal view shows three of the four principal dimensions.
A.
True
B.
False
Answer & Explanation
Answer: Option B
17. A plane surface that is parallel to a plane of projection appears on edge as a
straight line.
A.
True
B.
False
Answer & Explanation
Answer: Option B
18. First-angle projection is primarily used in Europe and Asia.
A.
True
Answer & Explanation
Answer: Option A
B.
False