PGT Computer Science (Level-3), (HTET Practice MCQs) (Part-II)

Total Questions: 100

11. Which of the following is not true with respect to a trackball and/or spaceball?

1. A trackball is a two dimensional positioning device while as a spaceball provides six degrees of freedom.
II. Unlike the trackball a spaceball does not actually move.
III. A trackball is a three dimensional positioning device while as a spaceball provides six degrees of freedom.

Correct Answer: D. III only

12. Which of the following statement(s) is (are) true?

I. Two successive translations are additive.
II. Two successive rotations are additive.
III. Two successive scaling operations are multiplicative.

Correct Answer: D. All the above

13. Given below are three basic rules:

I. Squash and Stretch
II. Slow-in and Slow-out
III. To stage the action properly
These rules are applied in case of

Correct Answer: C. Animation

14. Which of the following points lies on the same side as the origin, with reference to the line 3x + 7y = 2?

Correct Answer: D. (0.5, 0)

15. The transformation matrix required for conversion of CMY colour model to RGB colour model is given as:

Correct Answer: C.

16. Consider the following Linear programming problem (LPP):

Maximize z = x₁ + x₂
Subject to the constraints:
x + 2x₂ ≤ 2000
x₁ + x₂ ≤ 1500
x₂ ≤ 600
and x₁, x₂ ≥ 0
The solution of the above LPP is:

Correct Answer: C. x₁ = 1000, x₂ = 500, z = 1500

17. In UNIX, how do you check that two given strings a and b are equal?

Correct Answer: C. test $a = $b

18. In Windows 2000 operating system all the processor-dependent code is isolated in a dynamic link library called

Correct Answer: B. Hardware abstraction layer

19. To place a sound into a word document, following feature of windows is used :

Correct Answer: D. OLE

20. Translation Look-aside Buffer (TLB) is

Correct Answer: D. an associative memory in which item to be searched is compared with all the keys simultaneously.