10 Question-answer on logic gate
1. in the binary number system 100 + 1011 is equal to
(a) 1000
(b) 1011
(c) 1110
(d) 1111
Ans: (d)
2. The decimal number 16 in binary number is:
(a) 1000
(b) 10000
(c) 1010
(d) 11000
Ans: (b)
3. The decimal number 605 in binary number will be
(a) 100101
(b) 10010111
(c) 1001011101
(d) 100101101.
Ans: ( c)
4. The binary number 1000 represents
(a) 8
(b) 16
(c) 32
(d) 64.
Ans: (a)
5. Digital circuit can be made by repetitive use of
(a) OR gates
(b) NOT gates
(c) AND gates
(d) NAND gates
Ans: ( d)
6. The output of a two input OR gate is zero, only when its
(a) Either input is one
(b) Either input is zero
(c) Both input are one
(d) Both inputs are zero
Ans: (d)
7. The output of a two input AND gate is one only when its
(a) Either input is one
(b) Either input is zero
(c) Both inputs are one
(d) Both inputs is zero
Ans: ( c)
8. An AND gate
(a) Implements logic addition
(b) Is a universal gate
(c) Is equivalent to a series switching circuit
(d) Is equivalent to a parallel switching circuit
Ans: (c)
9. The binary number of decimal number (9.25)10 is:
(a) 1101.01
(b) 1001.01
(c) 1001.10
(d) 1110.01
Ans: (b)
10. Two NOT gates are connected at the two inputs of a NAND gate. This combination will behave like
(a) NAND gate
(b) AND gate
(c) OR gate
(d) NOR gate
Ans: (c)