# Computer Science Class 9 Chapter 6 MCQs With 3 Tests

## 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 1:

1

Computer Science Chapter 6 – Boolean Algebra Test 1

1 / 20

Boolean algebra was formulated by English Mathematician George Boole in?

2 / 20

If Z is a Boolean variable then its value can be?

3 / 20

Which of the following are basic logical operators in Boolean algebra?

4 / 20

The operator that gives complement of the given value is called?

5 / 20

If A = 1 and B = 0 then A And B = ?

6 / 20

Boolean Algebra is the __ of logic?

7 / 20

..... uses symbols to represent logical statements instead of words?

8 / 20

If A = 1,B = 0 then A and B = ?

9 / 20

If A =1, B=1, C=O then A+B+C = ?

10 / 20

If A = 1 ,B =0, C = 1 then X = A + B + C ?

11 / 20

A + B = B + A and A . B = B. A represents which of the following?

12 / 20

Boolean Algebra was formulated by the ?

13 / 20

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

14 / 20

According to Existence of identity element A . 1 ?

15 / 20

As per Existence of inverse A + A Z ?

16 / 20

Computer chips are made up of ?

17 / 20

According to inverse the output will be 0 if ?

18 / 20

Boolean Algebra consists of In Boolean Algebra each variable at one time can take how many values?

19 / 20

AND operator represent ?

20 / 20

In Boolean algebra each variable at a time can take how many values?

The average score is 0%

0%

## 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 2:

0

Computer Science Chapter 6 – Boolean Algebra Test 2

1 / 14

Which is called an unary operator?

2 / 14

All electronic devices consist of circuits of?

3 / 14

A switch at any given time is in one of the states?

4 / 14

Which operator is used for logical multiplication?

5 / 14

Which of the following operations are used by the Boolean Algebra?

6 / 14

Logical addition refers to operation of ?

7 / 14

A serial circuit is represented by ?

8 / 14

Boolean Algebra derives its name form the British mathematician?

9 / 14

A Boolean variable can only have one of the two values?

10 / 14

An OR gate has at least inputs ?

11 / 14

An AND gate has at least inputs ?

12 / 14

A parallel circuit is represented by ?

13 / 14

Two valued Boolean Algebra is a set that has elements and operations

In order to get high output in AND gate all the input must be?

14 / 14

The output of the NOT gate is always the ......of the original value?

The average score is 0%

0%

## 9th Class Computer Science Chapter 6 Boolean Algebra MCQs TEST 3:

0

Computer Science Chapter 6 – Boolean Algebra Test 3

1 / 15

Which of the following is a proposition?

2 / 15

In the representation of Boolean function, the A bar is assigned the value?

3 / 15

The table that represents the output of a Boolean expression for all possible combination of input is called?

4 / 15

Which of the following logical operator is denoted by + sign ?

5 / 15

Boolean Algebra deals with ?

6 / 15

Truth table show all possible combinations of ?

7 / 15

Boolean operators and Boolean variables combine to form Boolean ?

8 / 15

Who did overcome the disadvantages of Boolean algebra laws for simplification of expression?

9 / 15

Which is Boolean constant ?

10 / 15

X, Y are called ?

11 / 15

we can use it to change the order of evaluation of operations in a Boolean expression?

12 / 15

A truth table of a two variable expression will always have?

13 / 15

f ( x, y ) = x + y is a ?

14 / 15

Standard product is known as?

15 / 15

Standard sum is known as?

The average score is 0%

0%
Subscribe
Notify of