Top 150+ Solved Computer Graphics (for MCA) MCQ Questions Answer
Q. The algorithm of hidden surface is
a. Object-space method
b. image-space method
c. Both a & b
d. None of these
Q. The phenomenon of having a continuous glow of a beam on the screen even after it isremoved is called as ?
a. Fluorescence
b. Persistence
c. Phosphorescence
d. Incandescence
Q. All the hidden surface algorithms employe image space approach except ?
a. Back face removal
b. Depth buffer method
c. Scan line method
d. Depth sort method
Q. Which of the following statement is true ?
a. Request, sample and event are the three basic modes of input
b. Keyboard is a device ideally suited for use in sample mode
c. A mouse is typically a device for inputting an absolute position on the screen
d. Special graphics hardware support is essential for providing menu-driven user interface to an application
Q. Choose the incorrect statement from the following about the basic ray tracing technique used in image synthesis ?
a. In this technique rays are cast from the eye point through every pixel on the screen
b. In this technique, viewing transformation are not supplied to the scene prior to rendering
c. This technique removes hidden surfaces.
d. In this technique rays are cast from the light source to the object in the scene
Q. If all the pixels within an octant have the same color, it is referred to as .....................
a. Heterogeneous octant
b. Homogeneous octant
c. Simultaneous octant
d. Similar octant
Q. A structure is created using the function ........................
a. initstructure( )
b. startstructure( )
c. openstructure( )
d. none
Q. ................... is the reference portion value of each structure element.
a. element pointer
b. index
c. attribute
d. attribute index
Q. ............... can be produced by interpolating shading patterns across the polygon surfacesto eliminate or reduce the presence of polygon edge boundaries.
a. Rasterizing
b. Rendering
c. Smoothing
d. None
Q. If the light is propagating in a material with a ____ index of refraction than the material whose surface it strikes, then total internal reflection may occur if the angle of incidence is ____than a certain critical angle
a. higher, greater
b. lower, lesser
c. highet,lesser
d. lower, greater
Q. The equation occurring in finding the reflected vector is
a. L’=2(N.L)N-L
b. L’=2(N.L)N+L
c. L’=2(N.L)N*L
d. L’=2(N.L)N/L
Q. Curves can be broadly classified into three categories – which are
a. explicit, implicit, and parametric curves.
b. explicit, implicit, and nonparametric curves.
c. explicit, bezier, and parametric curves.
d. implicit, cubic and parametric curves