Electronics and Communication Engineering Multiple Choice Questions Pdf - 2

Question: 6

A sequence of binary digits is known as

(A) byte string

(B) bit string

(C) input string

(D) word string

Question: 7

A half adder has

(A) 1 input and 2 outputs

(B) 2 inputs and 1 outputs

(C) 1 input, 1 output

(D) 2 inputs and 2 output

Question: 8

A device which converts BCD into octal is called

(A) demultiplexer

(B) encoder

(C) decoder

(D) code converter

Question: 9

The number of two input NAND gate required to implement an OR gate and an EX-NOR gate are respectively.

(A) 2 and 5

(B) 2 and 4

(C) 3 and 4

(D) 3 and 5

Question: 10

Excess 3 code is known as

(A) algebraic code

(B) weighted code

(C) redundancy code

(D) self complementing code