(A) True – PG #38
(B) False
Answer: (A) True
Q2: We can explain relationship between X, Y, Z coordinates using left-hand rule
(A) False
(B) True
Answer: (A) False
Q3: The last column of an affine transform matrix does not affect vectors
(A) True
(B) False
Answer: (A) True
Q4: Plasma-panel displays use a gas mixture and phosphorus coating for display
(A) False
(B) True
Answer: (B) True
Q5: (x² / a²) – (y² / b²) = 1 is equation of
(A) Circle
(B) Parabola
(C) Hyperbola – PG #70
(D) Ellipse
Answer: (C) Hyperbola
Q6: There are ______ basic types of polygon
(A) 2
(B) 3 – PG #81
(C) 4
(D) 10
Answer: (B) 3
Q7: _______ polygons are concave polygons that may self-intersect
(A) Complex – PG #81
(B) None of the given
(C) Hybrid
(D) Convex
Answer: (A) Complex
Q8: Filling process in boundary filling algorithm begins when a point ______ is selected
(A) Outside the boundary
(B) Inside the boundary – PG #102
(C) At boundary
(D) None of the given
Answer: (B) Inside the boundary
Q9: Trivial acceptance/reject test, Bit 1 represents
(A) X < Xmin – PG #143
(B) X > Xmax
(C) Y < Ymin
(D) Y > Ymax
Answer: (A) X < Xmin
Q10: Trivial acceptance/reject test, Bit 2 represents
(A) X < Xmin
(B) X > Xmax
(C) Y < Ymin – PG #143
(D) Y > Ymax
Answer: (C) Y < Ymin
Q11: Trivial acceptance/reject test, Bit 3 represents
(A) X < Xmin
(B) X > Xmax – PG #143
(C) Y < Ymin
(D) Y > Ymax
Answer: (B) X > Xmax
Q12: Trivial acceptance/reject test, Bit 4 represents
(A) X < Xmin – PG #143
(B) X > Xmax
(C) Y < Ymin
(D) Y > Ymax
Answer: (A) X < Xmin
Q13: Polygons causing rendering problems have
(A) Non-co-planar vertices – PG #169
(B) Co-planar vertices
(C) On any vertex
(D) None of the given
Answer: (A) Non-co-planar vertices
Q14: Homogeneous coordinates for 3D translation expressed as
(A) None of the given
(B) P’ = T(tx, tx, tx) + P
(C) P’ = T(0, 0, 0) + P
(D) P’ = T(tx, ty, tz) · P – PG #179
Answer: (D) P’ = T(tx, ty, tz) · P
Q15: Tendency of text to flash moving up/down
(A) Flickering – PG #38
(B) Snow
(C) Distortion
(D) None of the given
Answer: (A) Flickering
Q16: Flurry of bright dots on screen
(A) Flickering
(B) Snow effect – PG #38
(C) Distortion
(D) None of the given
Answer: (B) Snow effect
Q17: Video text memory uses ______ to display a character
(A) 2 bytes – PG #43
(B) 4 bytes
(C) 8 bytes
(D) 16 bytes
Answer: (A) 2 bytes
Q18: Algorithm where old color must be read before invoked
(A) Scan line filling
(B) Flood fill – PG #104
(C) Both
(D) None of the given
Answer: (B) Flood fill
Q19: Transformation where one coordinate held fixed, others shifted
(A) Rotation
(B) Reflection
(C) Shear
(D) None of the given
Answer: (C) Shear
Q20: Dot product of two vectors A and B if angle < 90° or > 270°
(A) Greater than zero – PG #177
(B) Less than zero
(C) Equal to zero
(D) None of the given
Answer: (A) Greater than zero
Q21: Projection where all lines perpendicular to plane projected with no change
(A) Cavalier and Cabinet
(B) Cabinet
(C) Cavalier – PG #199
(D) None of the given
Answer: (C) Cavalier
Q22: First step of triangle rasterization is to ______ a solid filled triangle
(A) Rotate
(B) Render – PG #216
(C) Redraw
(D) None of the given
Answer: (B) Render
Q23: If scaling factors Sx & Sy >1, object size will be
(A) Reduced
(B) Enlarged – PG #121
(C) Remain same
(D) None of the given
Answer: (B) Enlarged
Q24: Interlacing the horizontal refresh
(A) Not used
(B) Necessary for rods
(C) Distracting / eye fatigue
(D) Fools human eye – PG #38
Answer: (D) Fools the human eye into thinking refresh faster
Q25: Safe to assume all raster-type monitors accept same input
(A) False
(B) True
Answer: (A) False
Q26: Boundary & Flood filling algorithms are non-recursive
(A) False – PG #102
(B) True
Answer: (A) False
Q27: Mesh triangles along solid boundary are ordered
(A) Perpendicular
(B) Parallel
(C) Clockwise – PG #208
(D) Anticlockwise
Answer: (C) Clockwise
Q28: Cannot explain X, Y, Z using left-hand rule
(A) False
(B) True
Answer: (A) False
Q29: Set of points same distance from focus & directrix
(A) Circle
(B) Hyperbola
(C) Parabola – PG #73
(D) Ellipse
Answer: (C) Parabola
Q30: Rotating a point requires coordinates and rotation angles
(A) False
(B) True – PG #180
Answer: (B) True
Q31: Boundary-fill method requires coordinates of
(A) Starting point
(B) Fill color
(C) Boundary color
(D) All of the given – PG #102
Answer: (D) All of the given
Q32: Boundary/Flood filling algorithms compared to scan line
(A) None
(B) Better
(C) Worse
(D) Almost same
Answer: (C) Worse
Q33: Discard line with both endpoints outside clipping boundary
(A) Trivial Reject – PG #142
(B) Trivial Accept
(C) None
(D) Total outside
Answer: (A) Trivial Reject
Q34: Clipping against one edge independent, so impossible to arrange pipeline
(A) True
(B) False – PG #150
Answer: (B) False
Q35: If polygons filled, line-clipping sufficient
(A) True
(B) False – PG #248
Answer: (B) False
Q36: Display processor memory acts as
(A) Video controller
(B) System memory – PG #36
(C) Frame buffer
(D) None
Answer: (B) System memory
Q37: Curve functions useful in
(A) Object modeling
(B) Graphics applications
(C) All of the given – PG #69
(D) Animation path specifications
Answer: (C) All of the given
Q38: Transformation producing shape distortions as if layers slide
(A) Translation
(B) Reflection
(C) Shear – PG #129
(D) Rotation
Answer: (C) Shear
Q39: In _______ projection, perpendicular lines projected at _______
(A) Cabinet, 1/2 length – PG #199
(B) Cavalier, 1/2 length
(C) Cabinet, No change
(D) Cavalier, No change
Answer: (A) Cabinet, 1/2 length