1. . Half adder circuit requires two binary:
(A) both a & b
(B) outputs
(C) Digits
(D) inputs
2. . The most significant bit of arithmetic addition is:
(A) overflow
(B) output
(C) carry
(D) Zero bit
3. . Two bit addition is done by:
(A) Half adder
(B) Full adder
(C) Half subtractor
(D) None
4. . If A and B are the inputs of a half adder, the carry is given by:
(A) A OR B
(B) A AND B
(C) A XOR B
(D) A EX-NOR B
5. . How many AND, OR and EXOR gates are required for configuration of full adder:
(A) 1, 2, 2
(B) 2, 1, 2
(C) 3, 1, 2
(D) 4, 0, 1
6. . Half subtractor is used to perform subtraction of:
(A) 3 bits
(B) 2 bits
(C) 4 bits
(D) 5 bits
7. . Full subtractor is used to perform subtraction of:
(A) 2 bits
(B) 3 bits
(C) 4 bits
(D) 5 bits
8. . Let A and B be the inputs of a subtractor, then the borrow will be:
(A) A AND B’
(B) A AND B
(C) A OR B
(D) A’ AND B
9. . If input of subtractor is A and B, then what will be the output if A = B?
(A) 0
(B) 1
(C) A
(D) B