Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Chapter: 18
Q621:
In matrix representation, vertical arrays of numbers are called ______.
A. Rows
B. Columns
C. Diagonals
D. Vectors
Correct Answer:
B
Chapter: 18
Q622:
The formula for y′ when rotating around Z-axis is ______.
A. x sinθ + y cosθ
B. x cosθ - y sinθ
C. x sinθ - y cosθ
D. x cosθ + y sinθ
Correct Answer:
A
Chapter: 18
Q623:
The process of adjusting the coordinates so that the viewpoint is at the origin looking down the +Z axis is called ______.
A. Transformation
B. Normalization
C. Translation
D. Rotation
Correct Answer:
B
Chapter: 18
Q624:
Rotation around the Y-axis modifies which coordinates?
A. X and Z
B. Y and Z
C. X and Y
D. All coordinates
Correct Answer:
A
Chapter: 18
Q625:
Rotation around the X-axis modifies which coordinates?
A. Y and Z
B. X and Z
C. X and Y
D. All coordinates
Correct Answer:
A
Chapter: 18
Q626:
Roll refers to rotation about which axis?
A. X-axis
B. Y-axis
C. Z-axis
D. W-axis
Correct Answer:
C
Chapter: 18
Q627:
Pitch refers to rotation about which axis?
A. X-axis
B. Y-axis
C. Z-axis
D. W-axis
Correct Answer:
A
Chapter: 18
Q628:
Yaw refers to rotation about which axis?
A. X-axis
B. Y-axis
C. Z-axis
D. W-axis
Correct Answer:
B
Chapter: 18
Q629:
What remains constant when rotating around X-axis?
A. X
B. Y
C. Z
D. All coordinates
Correct Answer:
A
Chapter: 18
Q630:
What remains constant when rotating around Y-axis?
A. X
B. Y
C. Z
D. All coordinates
Correct Answer:
B
Chapter: 18
Q631:
A 3x3 matrix has how many elements in total?
A. 6
B. 9
C. 12
D. 15
Correct Answer:
B
Chapter: 18
Q632:
Which of the following is NOT a rotation axis?
A. X-axis
B. Y-axis
C. Z-axis
D. W-axis
Correct Answer:
D
Chapter: 18
Q633:
In matrix operations, the multiplication of each row by a vector is done using ______.
A. Scalar multiplication
B. Dot product
C. Cross product
D. Addition
Correct Answer:
B
Chapter: 18
Q634:
What transformation involves moving all points in the opposite direction of the perceived camera movement?
A. Rotation
B. Translation
C. Scaling
D. Normalization
Correct Answer:
B
Chapter: 19
Q635:
What problem does projection solve in computer graphics?
A. Representing 2D shapes
B. Representing 3D objects in 2D
C. Color rendering
D. Memory optimization
Correct Answer:
B
Chapter: 19
Q636:
Projection is defined as mapping a point P(x,y,z) onto its image P'(x',y',z') in the ________.
A. Object plane
B. Viewing plane
C. Z plane
D. Projection projector
Correct Answer:
B
Chapter: 19
Q637:
What is the name of the line used in projection that passes through point P and intersects the view plane?
A. Ray
B. Projector
C. Line segment
D. Axis
Correct Answer:
B
Chapter: 19
Q638:
How many basic methods of projection are there?
A. 1
B. 2
C. 3
D. 4
Correct Answer:
B
Chapter: 19
Q639:
Which are the two basic methods of projection?
A. Parallel and Curved
B. Parallel and Perspective
C. Orthogonal and Axonometric
D. Cavalier and Cabinet
Correct Answer:
B
Chapter: 19
Q640:
Parallel projection preserves the object's ______ and ______.
A. Color and size
B. Shape and size
C. Shape and color
D. Size and angle
Correct Answer:
B