Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Multiple Choice Questions
Q151: Which technique removes unequal spacing in circle plotting?
- A: Bresenham
- B: Cartesian
- C: Polar
- D: Direct formula
View Answer
C
Q152: What is the parametric form of circle equations in polar coordinates?
- A: x = r sinθ, y = r cosθ
- B: x = xc + r cosθ, y = yc + r sinθ
- C: x = r + θ, y = r - θ
- D: y = x² + y² = r²
View Answer
B
Q153: Why is step size 1/r used in polar method?
- A: To reduce code size
- B: To increase gaps
- C: To plot every 90 degrees
- D: To make pixel spacing approximately 1 unit
View Answer
D
Q154: Which method uses symmetry about octants for optimization?
- A: Cartesian
- B: Polar
- C: Octant-based
- D: Pixel mapping
View Answer
C
Q155: How many octants are considered in a circle for symmetry?
- A: 2
- B: 4
- C: 6
- D: 8
View Answer
D
Q156: In symmetric octant method, which points are used to complete the circle?
- A: Opposite radius points
- B: Predefined pixel set
- C: Symmetric pixel points
- D: Random angles
View Answer
C
Q157: The Midpoint Circle Algorithm reduces what type of calculations?
- A: Integer
- B: Floating
- C: Point
- D: Symmetric
View Answer
D
Q158: In Midpoint Algorithm, which function helps decide the next pixel?
- A: Sin()
- B: Decision Parameter
- C: Radius Finder
- D: Scan Locator
View Answer
B
Q159: What is the equation for the circle function used in midpoint algorithm?
- A: x² + y² - r² = 0
- B: r² - x² - y² = 0
- C: xy + r² = 0
- D: x + y - r² = 0
View Answer
A
Q160: If the decision parameter < 0 in midpoint method, what does it mean?
- A: Point is outside the circle
- B: Point is on the circle
- C: Point is inside the circle
- D: Point is irrelevant
View Answer
C