Tuesday 22 October 2013

Computer Graphics Solved question and answers for computer science exams

                      Computer Graphics Solved MCQs for UGC NET Computer Science

1. What is CRT.
CRT stands for Cathode Ray Tube.
CRT is a large vacuum tube filled with some type of gas that is used to make images appear on the monitor screen.

2. What is a resolution.
Resolution is the number of pixels that is used to display a full screen image.

3. Expand the following:
1. LCD
2. LED
3. VGA


LCD-Liquid Crystal Display
LED-Light Emitting Diode
VGA-Video Graphics Array

4. Gas plasma flat panel displays make use of which gas.
Neon gas

5. What is a dot pitch.
Dot pitch is the measurement of space that exists between display pixels of the monitor.

6. What is refresh rate.
Refresh rate is the number of times an image is redrawn each second.

7. What is meant by bit depth.
The number of bits used to describe a pixel is called as bit depth.

8. What are the colors used in printing a document.
Cyan ink- It absorbs red color.
Magenta- It absorbs green color.
Yellow ink- It absorbs blue color.
Black ink- It absorbs red,blue,green colors equally.

Tip: CMYB combination.

9. Applications of computer graphics.
Entertainment
User interfaces
Medicine
Multimedia systems
Computer games
Image processing
Cartography

10. What are the basic 2-D transformations.
Translation
Scaling
Rotation

Tip: TSR

11. Expand the following terms:
MHEG
PREMO
SGML
ODA
WORM

MHEG- Multimedia/Hypermedia Expert Group
PREMO- Presentation Environment for Multimedia Objects
SGML- Standard Generalized Markup Language
ODA- Open Document Architecture.
WORM- Write Once Read Many

12.  What is sample space in probability.
Sample space means the total outcomes resulting out of an experiment.

Example: If we toss two coins, then the total sample space will be 
2^2=4
Because, A coin has two faces and there are two coins, so the answer is 4

Sample space of two coins: (HH,HT,TT,TH)

13. What is Huffman code
Huffman code is an entropy encoding algorithm technique used for lossless data compression.

Note: An example of lossless data compression is ZIP file.

14. Explain the use of syndrome decoding.
Syndrome decoding is done to decode a linear code over a noisy channel.
Noisy channel means a channel on which errors generally occur.

15. What is image registration.
It is the process of transforming different sets of data in to one coordinate system.

16. What are mutually exclusive events.
Mutually exclusive events means the occurence of one event prevents the happening of another event.
Example: If we toss a coin, either head or tail will come, but both will not come at a time.

Comments are most welcome.

UGC NET December 2013 Exam Notification released.
www.ugcnetonline.in

Work Hard and Smart to be victorious in life.

1 comment:

  1. VERY USEFUL QUESTIONS AND ANSWERS TANVIR SIR .MAY EXPECT PROBLEM BASED QUESTIONS MORE

    ReplyDelete