11. 

Which of the following is a universal gate?

A. AND
B. OR
C. EX-OR
D. NAND
E. None of the above

12. 

The number of input words in a truth table always equals _____ where n is the number of inputs bits.

A. 10n
B. 2n
C. 4n
D. 8n
E. None of the above

13. 

Conversion of decimal number 6110 to it's binary number equivalent is

A. 1111012
B. 1111002
C. 1100112
D. 0011012
E. None of the above

14. 

Multiplication of 478 by 528 is

A. (3144)8
B. (4147)8
C. (3146)8
D. (3184)8
E. None of the above

15. 

Which of the following boolean algebra statements represent commutative law

A. (A+B)+CA+(B+C)
B. A.(B+C)(A.B)+(A.C)
C. A+BB+A
D. A+AA
E. None of the above