Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Chapter: 10
Q361:
Scalar multiplication involves multiplying each matrix element by a ________.
A. matrix
B. vector
C. real number
D. function
Correct Answer:
C
Chapter: 11
Q362:
What is the purpose of 2D transformations in computer graphics?
A. To create static images
B. To create moving and dynamic images
C. To fill colors
D. To improve resolution
Correct Answer:
B
Chapter: 11
Q363:
Which of the following is NOT a basic transformation?
A. Translation
B. Rotation
C. Scaling
D. Shearing
Correct Answer:
D
Chapter: 11
Q364:
Translation is a displacement along a _______.
A. Curved path
B. Circular path
C. Straight line
D. Zigzag path
Correct Answer:
C
Chapter: 11
Q365:
In translation, tx refers to displacement along the _______.
A. y-axis
B. x-axis
C. diagonal
D. origin
Correct Answer:
B
Chapter: 11
Q366:
What is the matrix form of translation?
A. P' = P × T
B. P' = P + T
C. P' = T - P
D. P' = T × P
Correct Answer:
B
Chapter: 11
Q367:
Translation moves every point on an object by the _______ amount.
A. different
B. random
C. same
D. increasing
Correct Answer:
C
Chapter: 11
Q368:
To translate a circle, which part is translated?
A. Circumference
B. Radius
C. Center
D. Area
Correct Answer:
C
Chapter: 11
Q369:
Rotation in 2D graphics repositions points along a _______.
A. straight line
B. triangular path
C. square
D. circular path
Correct Answer:
D
Chapter: 11
Q370:
In rotation, the fixed point about which rotation occurs is called _______.
A. pivot point
B. rotation point
C. center point
D. middle point
Correct Answer:
A
Chapter: 11
Q371:
Rotation by a positive angle is _______.
A. clockwise
B. random
C. anti-clockwise
D. linear
Correct Answer:
C
Chapter: 11
Q372:
In rotation, what are the required parameters?
A. Coordinates only
B. Rotation angle only
C. Coordinates and rotation angle
D. Pivot point only
Correct Answer:
C
Chapter: 11
Q373:
If rotation is performed around an arbitrary point, which transformations are needed?
A. Only scaling
B. Translation and then rotation
C. Only translation
D. Reflection and rotation
Correct Answer:
B
Chapter: 11
Q374:
What is the formula for x' in rotation around origin?
A. x′ = x cosθ + y sinθ
B. x′ = x cosθ - y sinθ
C. x′ = x sinθ + y cosθ
D. x′ = x sinθ - y cosθ
Correct Answer:
B
Chapter: 11
Q375:
In rotation matrix, what is changed to obtain transpose?
A. Cosine terms
B. Sine terms' sign
C. Angle value
D. Matrix order
Correct Answer:
B
Chapter: 11
Q376:
If rotation angle is negative, rotation direction is _______.
A. clockwise
B. anti-clockwise
C. straight
D. random
Correct Answer:
A
Chapter: 11
Q377:
Scaling is used to _______ the size of an object.
A. move
B. rotate
C. change
D. fix
Correct Answer:
C
Chapter: 11
Q378:
In scaling, Sx and Sy are called _______.
A. displacement factors
B. scaling factors
C. rotation factors
D. shear factors
Correct Answer:
B
Chapter: 11
Q379:
A scaling factor greater than 1 will _______ the object.
A. reduce
B. invert
C. increase
D. rotate
Correct Answer:
C
Chapter: 11
Q380:
Uniform scaling occurs when _______.
A. Sx = Sy
B. Sx ≠ Sy
C. Sx > Sy
D. Sy > Sx
Correct Answer:
A