Engineering Graphics Essentials | Original Multiple-Choice
Practice Questions & Answers Study Guide 2026
Master technical drawing and spatial visualization with these original multiple-choice
practice questions built for Engineering Graphics Essentials. Features high-yield
problems, verified answers, and clear geometric explanations covering orthographic
projection, section views, dimensioning rules, and 3D CAD modeling concepts.
1. What is the primary purpose of a multiview drawing?
A) To show the object in 3D
B) To show the object in two or more views to fully describe its shape
C) To show the object in section
D) To show the object in auxiliary view
Rationale: A multiview drawing uses two or more orthographic views (front, top, side) to
fully describe the shape and size of an object. Each view shows the object from a different
direction.
2. How many principal views are possible in orthographic projection?
A) Three
B) Four
C) Six
D) Eight
Rationale: There are six principal views: front, rear, top, bottom, right side, and left side.
The front, top, and right side are the most commonly used.
,3. Which view is typically chosen as the front view?
A) The view that shows the most hidden lines
B) The view that shows the most characteristic shape of the object
C) The view that shows the least detail
D) The view that is easiest to draw
Rationale: The front view should be the view that shows the most characteristic shape or
the most features of the object. It is usually the view from the direction the object is used
or the most descriptive view.
4. What is the relationship between the front view and the top view in
orthographic projection?
A) The top view is directly below the front view
B) The top view is directly above the front view (third-angle)
C) The top view is to the right of the front view
D) The top view is to the left of the front view
Rationale: In third-angle projection, the top view is placed directly above the front view.
The width of the object is the same in both views.
5. What is the relationship between the front view and the side view in
orthographic projection?
A) The side view is directly above the front view
B) The side view is directly to the right of the front view (third-angle)
,C) The side view is directly below the front view
D) The side view is directly to the left of the front view
Rationale: In third-angle projection, the right-side view is placed directly to the right of
the front view. The height of the object is the same in both views.
6. What is the relationship between the top view and the side view in orthographic
projection?
A) The side view is directly below the top view
B) The side view is directly to the right of the top view (third-angle)
C) The side view is directly above the top view
D) The side view is directly to the left of the top view
Rationale: In third-angle projection, the side view is placed directly to the right of the top
view. The depth of the object is the same in both views.
7. What is the purpose of a miter line in orthographic projection?
A) To show hidden edges
B) To transfer depth dimensions from the top view to the side view
C) To indicate cutting planes
D) To show center lines
Rationale: A miter line is drawn at 45 degrees at the intersection of the top and side
views. It is used to project depth dimensions from the top view to the side view, ensuring
alignment.
, 8. What is the purpose of a 45-degree miter line?
A) To show hidden edges
B) To transfer dimensions between views
C) To indicate cutting planes
D) To show center lines
Rationale: A 45-degree miter line is used to transfer dimensions (usually depth) from one
view to another. It is placed at the intersection of the top and side views.
9. What is the difference between a visible line and a hidden line?
A) Visible lines are dashed; hidden lines are solid
B) Visible lines are solid; hidden lines are dashed
C) Visible lines are thick; hidden lines are thin
D) Visible lines are thin; hidden lines are thick
Rationale: Visible lines (object lines) are solid, thick lines that represent edges visible from
the current view. Hidden lines are dashed, thin lines that represent edges not visible from
the current view.
10. What is the difference between a center line and a phantom line?
A) Center lines are solid; phantom lines are dashed
B) Center lines are chain lines with long and short dashes; phantom lines are chain
lines with two short dashes
C) Center lines are dashed; phantom lines are solid
D) Center lines are thick; phantom lines are thin
Practice Questions & Answers Study Guide 2026
Master technical drawing and spatial visualization with these original multiple-choice
practice questions built for Engineering Graphics Essentials. Features high-yield
problems, verified answers, and clear geometric explanations covering orthographic
projection, section views, dimensioning rules, and 3D CAD modeling concepts.
1. What is the primary purpose of a multiview drawing?
A) To show the object in 3D
B) To show the object in two or more views to fully describe its shape
C) To show the object in section
D) To show the object in auxiliary view
Rationale: A multiview drawing uses two or more orthographic views (front, top, side) to
fully describe the shape and size of an object. Each view shows the object from a different
direction.
2. How many principal views are possible in orthographic projection?
A) Three
B) Four
C) Six
D) Eight
Rationale: There are six principal views: front, rear, top, bottom, right side, and left side.
The front, top, and right side are the most commonly used.
,3. Which view is typically chosen as the front view?
A) The view that shows the most hidden lines
B) The view that shows the most characteristic shape of the object
C) The view that shows the least detail
D) The view that is easiest to draw
Rationale: The front view should be the view that shows the most characteristic shape or
the most features of the object. It is usually the view from the direction the object is used
or the most descriptive view.
4. What is the relationship between the front view and the top view in
orthographic projection?
A) The top view is directly below the front view
B) The top view is directly above the front view (third-angle)
C) The top view is to the right of the front view
D) The top view is to the left of the front view
Rationale: In third-angle projection, the top view is placed directly above the front view.
The width of the object is the same in both views.
5. What is the relationship between the front view and the side view in
orthographic projection?
A) The side view is directly above the front view
B) The side view is directly to the right of the front view (third-angle)
,C) The side view is directly below the front view
D) The side view is directly to the left of the front view
Rationale: In third-angle projection, the right-side view is placed directly to the right of
the front view. The height of the object is the same in both views.
6. What is the relationship between the top view and the side view in orthographic
projection?
A) The side view is directly below the top view
B) The side view is directly to the right of the top view (third-angle)
C) The side view is directly above the top view
D) The side view is directly to the left of the top view
Rationale: In third-angle projection, the side view is placed directly to the right of the top
view. The depth of the object is the same in both views.
7. What is the purpose of a miter line in orthographic projection?
A) To show hidden edges
B) To transfer depth dimensions from the top view to the side view
C) To indicate cutting planes
D) To show center lines
Rationale: A miter line is drawn at 45 degrees at the intersection of the top and side
views. It is used to project depth dimensions from the top view to the side view, ensuring
alignment.
, 8. What is the purpose of a 45-degree miter line?
A) To show hidden edges
B) To transfer dimensions between views
C) To indicate cutting planes
D) To show center lines
Rationale: A 45-degree miter line is used to transfer dimensions (usually depth) from one
view to another. It is placed at the intersection of the top and side views.
9. What is the difference between a visible line and a hidden line?
A) Visible lines are dashed; hidden lines are solid
B) Visible lines are solid; hidden lines are dashed
C) Visible lines are thick; hidden lines are thin
D) Visible lines are thin; hidden lines are thick
Rationale: Visible lines (object lines) are solid, thick lines that represent edges visible from
the current view. Hidden lines are dashed, thin lines that represent edges not visible from
the current view.
10. What is the difference between a center line and a phantom line?
A) Center lines are solid; phantom lines are dashed
B) Center lines are chain lines with long and short dashes; phantom lines are chain
lines with two short dashes
C) Center lines are dashed; phantom lines are solid
D) Center lines are thick; phantom lines are thin
