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# Punjab 9th Class Computer Model Paper 6 MCQs Test Online

 Total Question 30 Questions Total Marks 60 Marks Total Time 30 Minuts
 Test Help For :: 9th Class Promotion Test Computer Test For Entry Test Scholarship Test Admission Test Competitive Exams All Punjab Boards Annual Exams

### Test Name

 Computer Model Paper 6

### Subject

 Computer (9th Class)

 MCQs

# Punjab 9th Class Computer Model Paper 6 MCQs Test Online

Question 1 of 30

## Computer Science

1. Logical state can be only _____ or a 0:
1.
2.
3.
4.

Question 1 of 30

Question 2 of 30

2. In Boolean algebra AND operator is denoted as:
1.
2.
3.
4.

Question 2 of 30

Question 3 of 30

3. In Boolean algebra, A+1=?
1.
2.
3.
4.

Question 3 of 30

Question 4 of 30

4. The absorption law states that for two variables x and y.
1.
2.
3.
4.

Question 4 of 30

Question 5 of 30

5. How many maxterms are in Boolean Function with four variables?
1.
2.
3.
4.

Question 5 of 30

Question 6 of 30

6. In Boolean algebra _____¬ A+0 is equal to:
1.
2.
3.
4.

Question 6 of 30

Question 7 of 30

7. In Boolean algebra______ x + x is equal to :
1.
2.
3.
4.

Question 7 of 30

Question 8 of 30

8. The additive identity element is:
1.
2.
3.
4.

Question 8 of 30

Question 9 of 30

9. With n variables, we can construct minterms.
1.
2.
3.
4.

Question 9 of 30

Question 10 of 30

10. Who developed Boolean algebra?
1.
2.
3.
4.

Question 10 of 30

Question 11 of 30

11. The most important application of Boolean algebra is in:
1.
2.
3.
4.

Question 11 of 30

Question 12 of 30

12. Which of the following logical operator is denoted by + sign?
1.
2.
3.
4.

Question 12 of 30

Question 13 of 30

13. In Boolean algebra______ A.A is equal to:
1.
2.
3.
4.

Question 13 of 30

Question 14 of 30

14. K-Map is used to:
1.
2.
3.
4.

Question 14 of 30

Question 15 of 30

15. Boolean algebra has exactly the same structure as:
1.
2.
3.
4.

Question 15 of 30

Question 16 of 30

16. System of involution is:
1.
2.
3.
4.

Question 16 of 30

Question 17 of 30

17. Demorgan’s Law states that:
1.
2.
3.
4.

Question 17 of 30

Question 18 of 30

18. In the Boolean equation x = A-B the term AB is read as:
1.
2.
3.
4.

Question 18 of 30

Question 19 of 30

19. The idempotent law states that for two variables x and y.
1.
2.
3.
4.

Question 19 of 30

Question 20 of 30

20. In Boolean algebra ____A.B is equal to:
1.
2.
3.
4.

Question 20 of 30

Question 21 of 30

21. Which of the following is a proposition?
1.
2.
3.
4.

Question 21 of 30

Question 22 of 30

22. Boolean algebra deals with:

1.
2.
3.
4.

Question 22 of 30

Question 23 of 30

23. A Boolean Function with 3 variables will have:
1.
2.
3.
4.

Question 23 of 30

Question 24 of 30

24. Who established another method for simplifying a Boolean expression?
1.
2.
3.
4.

Question 24 of 30

Question 25 of 30

25. OR operator of Boolean algebra is denoted by:
1.
2.
3.
4.

Question 25 of 30

Question 26 of 30

26. In Boolean algebra A + A is equal to =
1.
2.
3.
4.

Question 26 of 30

Question 27 of 30

27. In Boolean algebra the identity element with respect to Dot (.) is equal to?
1.
2.
3.
4.

Question 27 of 30

Question 28 of 30

28. In Boolean algebra A.1 is equal to:
1.
2.
3.
4.

Question 28 of 30

Question 29 of 30

29. K-map with 3 variables:
1.
2.
3.
4.

Question 29 of 30

Question 30 of 30

30. When was Boolean algebra introduced?
1.
2.
3.
4.

Question 30 of 30

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