GC 120 Exam Questions with Correct Answers Latest Update 2025-2026
A. For clarity it is permissible to repeat dimensions for the same feature in various views. - Answers
Which one of the following is NOT a good dimensioning practice?
A. For clarity it is permissible to repeat dimensions for the same feature in various views.
B. Avoid dimensioning to hidden lines.
C. Avoid placing dimensions within the boundaries of a view.
D. Dimensions should be placed in the view that most clearly describes the feature being dimensioned.
A. unidirectional system - Answers When all dimensions and note text are oriented to read from the
bottom of the drawing page, the dimensioning system used is called the:
A. unidirectional system
B. size system
C. aligned system
D. location system
See #3 on practice final (C) - Answers Which figure illustrates the BEST dimensioning practice?
A.
B.
C.
D.
True - Answers Sweeping uses a 2D profile to define a 3D object.
True/False
C. Center Line - Answers Which of the following is typically represented in a drawing but does not have a
true physical counterpart on the object?
,A. Edge of a circular face
B. Corner of a rectangle
C. Center line
D. Edge of a planar surface
True - Answers Isometric and multiview sketches actually are classified as orthographic projection
techniques.
True/False
A. Grid Paper - Answers When making a freehand technical sketch, which of the following is the least
important?
A. Grid paper
B. Proportioning
C. Line Coventions
D. Alignment of views
B. Height - Answers Which dimension is shared by the front, right side, rear, and left side views?
A. Depth
B. Height
C. Width
D. Length
C. Extension Lines - Answers Which type of line connects dimension lines with the object?
A. Leader Lines
B. Visible Lines
C. Extension Lines
, D. Oblique Lines
See #10 on practice exam (D) - Answers Given the front and right side views below, choose the correct
top view.
A.
B.
C.
D.
C. Revolved section - Answers The sketch below shows a section of connecting rod to reveal the shape
and depth of the rib. This special type of section is known as a(n):
#11
A. Offset section
B. Thin section
C. Revolved section
D. Aligned section
False - Answers A true isometric projection of an object and an isometric drawing of the same object are
identical in size.
True
False
False - Answers Construction geometry is directly represented in the final part model.
True
False
See #14 on practice exam (B) - Answers Given the front, right , and isometric pictorial views below,
choose the correct missing view.
A. For clarity it is permissible to repeat dimensions for the same feature in various views. - Answers
Which one of the following is NOT a good dimensioning practice?
A. For clarity it is permissible to repeat dimensions for the same feature in various views.
B. Avoid dimensioning to hidden lines.
C. Avoid placing dimensions within the boundaries of a view.
D. Dimensions should be placed in the view that most clearly describes the feature being dimensioned.
A. unidirectional system - Answers When all dimensions and note text are oriented to read from the
bottom of the drawing page, the dimensioning system used is called the:
A. unidirectional system
B. size system
C. aligned system
D. location system
See #3 on practice final (C) - Answers Which figure illustrates the BEST dimensioning practice?
A.
B.
C.
D.
True - Answers Sweeping uses a 2D profile to define a 3D object.
True/False
C. Center Line - Answers Which of the following is typically represented in a drawing but does not have a
true physical counterpart on the object?
,A. Edge of a circular face
B. Corner of a rectangle
C. Center line
D. Edge of a planar surface
True - Answers Isometric and multiview sketches actually are classified as orthographic projection
techniques.
True/False
A. Grid Paper - Answers When making a freehand technical sketch, which of the following is the least
important?
A. Grid paper
B. Proportioning
C. Line Coventions
D. Alignment of views
B. Height - Answers Which dimension is shared by the front, right side, rear, and left side views?
A. Depth
B. Height
C. Width
D. Length
C. Extension Lines - Answers Which type of line connects dimension lines with the object?
A. Leader Lines
B. Visible Lines
C. Extension Lines
, D. Oblique Lines
See #10 on practice exam (D) - Answers Given the front and right side views below, choose the correct
top view.
A.
B.
C.
D.
C. Revolved section - Answers The sketch below shows a section of connecting rod to reveal the shape
and depth of the rib. This special type of section is known as a(n):
#11
A. Offset section
B. Thin section
C. Revolved section
D. Aligned section
False - Answers A true isometric projection of an object and an isometric drawing of the same object are
identical in size.
True
False
False - Answers Construction geometry is directly represented in the final part model.
True
False
See #14 on practice exam (B) - Answers Given the front, right , and isometric pictorial views below,
choose the correct missing view.
