Deck 12: Binary Arithmetic and Multiplexers/Demultiplexers

Question 1

A variable on its own or in its complemented form is known as a                      

A)product term
B)literal
C)sum term
D)word

Answer 1

literal

Question 2

Canonical form is a unique way of representing                          

A)sop
B)minterm
C)boolean expressions
D)pos

Answer 2

boolean expressions

Question 3

There are Minterms for 3 variables (a, b, c).

A)0
B)2
C)8
D)1

Answer 3

8

Question 4

Why is a demultiplexer called a data distributor?

A)the input will be distributed to one of the outputs
B)one of the inputs will be selected for the output
C)the output will be distributed to one of the inputs
D)single input gives single output

Question 5

Most demultiplexers facilitate which type of conversion?

A)decimal-to-hexadecimal
B)single input, multiple outputs
C)ac to dc
D)odd parity to even parity

Question 6

In 1-to-4 demultiplexer, how many select lines are required?

A)2
B)3
C)4
D)5

Question 7

In 1-to-4 multiplexer, if C1 = 1 & C2 = 1, then the output will be                          

A)y0
B)y1
C)y2
D)y3

Question 8

How many select lines are required for a 1-to-8 demultiplexer?

A)2
B)3
C)4
D)5

Question 9

How many AND gates are required for a 1-to-8 multiplexer?

A)2
B)6
C)8
D)5

Question 10

Which IC is used for the implementation of 1-to-16 DEMUX?

A)ic 74154
B)ic 74155
C)ic 74139
D)ic 74138

Question 11

The word demultiplex means                        

A)one into many
B)many into one
C)distributor
D)one into many as well as distributor

Question 12

Why is a demultiplexer called a data distributor?

A)the input will be distributed to one of the outputs
B)one of the inputs will be selected for the output
C)the output will be distributed to one of the inputs
D)single input to single output

Question 13

In a multiplexer the output depends on its                        

A)data inputs
B)select inputs
C)select outputs
D)enable pin

Question 14

In 1-to-4 multiplexer, if C1 = 0 & C2 = 1, then the output will be                        

A)y0
B)y1
C)y2
D)y3

Question 15

In 1-to-4 multiplexer, if C1 = 1 & C2 = 1, then the output will be                        

A)y0
B)y1
C)y2
D)y3

Question 16

What is the addition of the binary numbers 11011011010 and 010100101?

A)0111001000
B)1100110110
C)11101111111
D)10011010011

Question 17

Perform binary addition: 101101 + 011011 = ?

A)011010
B)1010100
C)101110
D)1001000

Question 18

Binary subtraction of 100101 - 011110 is

A)000111
B)111000
C)010101
D)101010

Question 19

Perform multiplication of the binary numbers: 01001 × 01011 = ?

A)001100011
B)110011100
C)010100110
D)101010111

Question 20

100101 × 0110 = ?

A)1011001111
B)0100110011
C)101111110
D)0110100101

Question 21

On multiplication of (10.10) and (01.01), we get

A)101.0010
B)0010.101
C)011.0010
D)110.0011

Question 22

Divide the binary numbers: 111101 ÷ 1001 and find the remainder

A)0010
B)1010
C)1100
D)0011

Question 23

Divide the binary number (011010000) by (0101) and find the quotient

A)100011
B)101001
C)110010
D)010001

Question 24

Binary subtraction of 101101 - 001011 = ?

A)100010
B)010110
C)110101
D)101100