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REVISION - 3(BOOLEAN LOGIC GATES)

Total questions: 18

Worksheet time: 11mins

Name
Class
Date
1.

1. Which of these are logic gates?

a)

AND

b)

OR

c)

NOT

d)

ALL OF THESE

2.

According to Boolean laws:A+1=?

a)

1

b)

A

c)

0

d)

A\overline{A}

3.

According to the Boolean laws: A+0=?

a)

1

b)

A

c)

0

d)

A\overline{A}

4.

According to Boolean laws: A.0=?

a)

1

b)

A

c)

0

d)

A\overline{A}

5.

According to Boolean laws: A.1=?

a)

1

b)

A

c)

0

d)

A\overline{A}

6.

The expression for the Absorption law is given by_________(A' means A\overline{A}  )

a)

A+AB=A

b)

A+AB=B

c)

AB+AA'=A

d)

A+B=B+A

7.

The involution of A is equal to______

a)

A

b)

A'

c)

1

d)

0

8.

If an input A is given to an inverter gate i.e. NOT gate ,the output will be:

a)

1/A

b)

1

c)

A

d)

A'

9.

The output of a two-input OR gate is high when

a)

both inputs are low

b)

both inputs are high

c)

any one input is high

d)

only one input is high

10.

The output of a two input AND gate is high when

a)

both inputs are low

b)

both inputs are high

c)

any one output is high

d)

only one input is high

11.

According to the associative law:

a)

A+B=B+A

b)

A=A+A

c)

(A+B)+C=A+(B+C)

d)

A+0=A

12.

According to the commutative law

a)

AB=BA

b)

A=AA

c)

(AB)C=A(BC)

d)

A.0=A

13.

According to the distributive law A(B+C)=?

a)

ABC

b)

AB+AC

c)

A+B+C

d)

A+BC

14.

According to the DeMorgan laws,the complement of a product of variables is equal to

a)

the complement of the sum

b)

the sum of the complements

c)

the product of the complement

d)

none of these

15.

The statements that can be determined as TRUE/FALSE are called (a)   statements.

16.

Truth values are ____________and _________.

(a)  

17.

The operation performed by a NOT gate is called (a)   .

18.

The NOT gate takes only (a)   input.