Test Your Knowledge! MCQ of Number System

The history of number and number system started from the ancient time before the invention of any counting devices that had been made in the history of computer. The most commonly used number system is decimal number system which was invented by Hindu Philosophers.

Here are the MCQ challenge questions. Check your knowledge about Number System and Boolean Logic.

MCQ Number System

1 / 43

The maximum number of bits sufficient to represent an octal number is binary is _____.

2 / 43

The logic expression A.B'+A'B is given by _____ gates.

NAND gate

Exclusive NOR gate

Exclusive OR gate

NOR gate

3 / 43

In the AND gate, the output is high only if both the inputs are

None

Low

Medium

High

4 / 43

Boolean algebra can be used to

None

Solve the equations

Simplify any algebraic expression

Perform arithmetic equations

5 / 43

Which of the following is the Roundedness Law of Boolean Algebra?

A+A=A

A+0=A

A+1=1

A+A'=1

6 / 43

Two inputs Exclusive NOR gate gives high output

When one input is high and the other is low

Only when both the inputs are high

Only when the both the inputs are low

When the both the inputs are same

7 / 43

Which of the following is the 1's complement of 1010?

1011

1234

0110

0101

8 / 43

If an input A is given to an inverter, the output will be

A+

A-

9 / 43

When of the inputs of two-input a XOR gate is Logic High, the output will be _____ of the other input.

XOR

NOR

None

NOT

10 / 43

Which of the following is the Distributive Law of Boolean Algebra?

A+B=B+A

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

A+(A.B)=A

A.(B+c)=A.B+A.C

11 / 43

Which of the following is the Associative Law of Boolean Algebra?

A+(A.B)=A

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

A.(B+c)=A.B+A.C

A+B=B+A

12 / 43

What does the symbol A represent in a hexadecimal number system?

13 / 43

Which of the following is the Identity Law of Boolean Algebra?

A+0=A

A+1=1

A+A'=1

A+A=A

14 / 43

According to De Morgans theorems, the complement of the sum of the Boolean Variables are equal to

The complement of the sum

None

The product of their individual complements

The sum of their individual complements

15 / 43

Which of the following is the Commutative Law of Boolean Algebra

A.(B+c)=A.B+A.C

A+(A.B)=A

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

A+B=B+A

16 / 43

Which of the following is valid in Boolean algebra?

Both A+A=2A and A+A

A+A=A

None

A+A=2A

17 / 43

A basic AND gate consists of ______ inputs and an output

Four

One

Two

Three

18 / 43

The output of two input OR gage is high

Only if both inputs are low

If at least one of the inputs is high

Only if one input is high and the other is low

Only if both inputs are high

19 / 43

According to De Morgan's theorems, the complement of the product of the Boolean Variables is equal to

The product of their individual complements

The complement of the sum

The sum of their individual complements

None

20 / 43

The base value of decimal number system is _____.

21 / 43

NAND gate means

AND gate followed by an OR gates

AND gate followed by an inverter

Inversion followed AND gate

None

22 / 43

Which is the least significant digit of 1234?

23 / 43

Symbol: F=A.B, where '.' Implies ____ operation.

AND

XOR

NOT

24 / 43

Base of number is also called as ________.

Medium

Root

Radix

Entity

25 / 43

2's complement is used to represent signed integers, especially ____ integers.

None

Positive

Both A and B

Negative

26 / 43

Boolean algebra is named after ______, who used it to study human logical reasoning

George Boole

Earle Dickson

Acharya Kanad

Mary Anderson

27 / 43

An XOR gate gives a high output

All of the option

Complement of OR gate

If there are even numbers of 1s in the input

If there are odd numbers of 1s in the input

28 / 43

Which of the De Morgan's Law of Boolean Algebra?

(A+B)'=A'.B'

A+(A.B)=A

(A')'=A

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

29 / 43

Which of the following is the Involution Law of Boolean Algebra?

A.(B+c)=A.B+A.C

A+(A.B)=A

(A')'=A

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

30 / 43

Which of the following is the Absorption Law of Boolean Algebra?

A.(B+c)=A.B+A.C

A+(A.B)=A

A+B=B+A

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

31 / 43

The binary equivalent of 10101 to its decimal equivalent is ____.

32 / 43

The output of two input NAND gate is high

If at least one of the inputs is low

Only if both the inputs are low

Only if one inputs is high and the is low

Only if both the inputs are high

33 / 43

Symbol: F=A+B, where '+' Implies ____ operation.

XOR

AND

NOT

34 / 43

The maximum number of bits sufficient to represent hexadecimal number in binary is ______.

35 / 43

The value of radix of hexadecimal number system is _______.

36 / 43

Which of the following is the Complement Law of Boolean Algrebra?

A+A'=1

A+0=A

A+1=1

A+A=A

37 / 43

Which of the following is universal gate?

NOT

AND

NAND

38 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+0=A

A+A'=1

A+1=1

A+A=A

39 / 43

When a logic circuit diagram is given, you can analyze the circuit to obtain the _____.

None

Result

Input

Logic expression

40 / 43

The output of a two input AND gate is high

Only if both the inputs are high

Only if one inputs is high and the is low

If at least one of the inputs is low

Only if both the inputs are low

41 / 43

Which of the following is not a positional number system?

Decimal number system

Octal number system

Roman number system

Binary number system

42 / 43

An XNOR gate gives a high output

Complement of a NOR gate

NOT gate followed by an exclusive XOR gates

Inverter followed by an XOR gate

Exclusive OR gate followed by an inverter

43 / 43

A computer language that is written in binary codes only is called _____.

Machine level

None Of The Option

C++

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The average score is 66%

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