CGMA mcq for RGPV diploma

1. Which devices provides positional information to the graphics system ?
a) Input devices
b) Output devices
c) Pointing devices
d) Both a and c
Answer- d

2. The number of pixels stored in the frame buffer of a graphics system is known as
a) Resolution
b) Depth
c) Resalution
d) Only a
Answer- d

3. In graphical system, the array of pixels in the picture are stored in
a) Memory
b) Frame buffer
c) Processor
d) All of the mentioned

Answer: a

4. Heat supplied to the cathode by directing a current through a coil of wire is called
a) Electron gun
b) Electron beam
c) Filament
d) Anode and cathode

Answer: c

5. The maximum number of points that can be displayed without overlap on a CRT is referred as
a) Picture
b) Resolution
c) Persistence
d) Neither b nor c

Answer: b

6. The devices which converts the electrical energy into light is called
a) Liquid-crystal displays
b) Non-emitters
c) Plasma panels
d) Emitters

Answer: d

7. In which system, the Shadow mask methods are commonly used
a) Raster-scan system
b) Random-scan system
c) Only b
d) Both a and b

Answer: a

8. The process of digitizing a given picture definition into a set of pixel-intensity for storage in the frame buffer is called
a) Rasterization
b) Encoding
c) Scan conversion
d) True color system

Answer: c

9. Which display devices allows us to walk around an object and view it from different sides.
a) Direct view storage tubes
b) Three-dimensional devices
c) Flat panel display devices
d) Plasma panel display devices

Answer: b