DSD III B 2021

How many entries will be in a 5 input NAND gate

• 6

• 8

• 32

• 16

How many bits are needed to store one BCD digit?

• 2

• 4

• 3

• 1

Which of these sets of logic gates are known as universal gates?

• XOR, NAND, OR

• OR, NOT, XOR

• NOR, NAND, XNOR

• NOR, NAND

What is the addition of the binary number 101001+ 010011=?

• 010100

• 111100

• 000111

• 101110

What is the binary subtraction of 101001 - 010110 =?

• 010011

• 100110

• 011001

• 010010

In the toggle mode, a JK flip-flop has

• J = 0, K = 1

• J = 1, K = 1

• J = 0, K = 0

• J = 1, K = 0

2's complement of 1011011 is

• 0100011

• 0110101

• 0100011

• 0100101

DeMorgan's Law states that

• (A+B)' = A'*B

• (AB)' = A' + B'

• (AB)' = A' + B

• (AB)' = A + B

The logical sum of two or more than two logical products is termed as

• OR operation

• POS

• SOP

• NAND operation

The Minterms for four variables

• 8

• 16

• 2

• 1