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

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

The sum of their individual complements

None

The complement of the sum

The product of their individual complements

2 / 43

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

Exclusive NOR gate

Exclusive OR gate

NAND gate

NOR gate

3 / 43

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

The sum of their individual complements

None

The product of their individual complements

The complement of the sum

4 / 43

Which of the following is the Commutative Law of Boolean Algebra

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

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

A+B=B+A

A+(A.B)=A

5 / 43

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

6 / 43

Boolean algebra can be used to

None

Solve the equations

Perform arithmetic equations

Simplify any algebraic expression

7 / 43

Base of number is also called as ________.

Medium

Entity

Radix

Root

8 / 43

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

Low

Medium

None

High

9 / 43

Which of the following is universal gate?

AND

NAND

NOT

10 / 43

Two inputs Exclusive NOR gate gives high output

When one input is high and the other is low

Only when the both the inputs are low

Only when both the inputs are high

When the both the inputs are same

11 / 43

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

0101

0110

1011

1234

12 / 43

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

XOR

NOT

AND

13 / 43

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

A+0=A

A+A=A

A+1=1

A+A'=1

14 / 43

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

A+

A-

15 / 43

An XOR gate gives a high output

Complement of OR gate

If there are odd numbers of 1s in the input

If there are even numbers of 1s in the input

All of the option

16 / 43

NAND gate means

Inversion followed AND gate

AND gate followed by an inverter

AND gate followed by an OR gates

None

17 / 43

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

AND

NOT

XOR

18 / 43

An XNOR gate gives a high output

Complement of a NOR gate

Inverter followed by an XOR gate

Exclusive OR gate followed by an inverter

NOT gate followed by an exclusive XOR gates

19 / 43

The output of two input NAND gate is high

Only if one inputs is high and the is low

Only if both the inputs are high

Only if both the inputs are low

If at least one of the inputs is low

20 / 43

The value of radix of hexadecimal number system is _______.

21 / 43

The output of two input OR gage is high

Only if both inputs are high

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 low

22 / 43

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

A+B=B+A

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

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

A+(A.B)=A

23 / 43

Which of the following is valid in Boolean algebra?

None

A+A=A

A+A=2A

Both A+A=2A and A+A

24 / 43

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

None

XOR

NOT

NOR

25 / 43

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

A+(A.B)=A

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

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

A+B=B+A

26 / 43

Which of the following is not a positional number system?

Octal number system

Decimal number system

Roman number system

Binary number system

27 / 43

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

28 / 43

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

Both A and B

Positive

None

Negative

29 / 43

Which is the least significant digit of 1234?

30 / 43

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

(A')'=A

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

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

A+(A.B)=A

31 / 43

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

Earle Dickson

Acharya Kanad

George Boole

Mary Anderson

32 / 43

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

None

Logic expression

Result

Input

33 / 43

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

A+(A.B)=A

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

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

A+B=B+A

34 / 43

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

A+1=1

A+A=A

A+A'=1

A+0=A

35 / 43

The output of a two input AND gate is high

Only if both the inputs are low

Only if one inputs is high and the is low

Only if both the inputs are high

If at least one of the inputs is low

36 / 43

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

A+A'=1

A+1=1

A+A=A

A+0=A

37 / 43

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

38 / 43

A basic AND gate consists of ______ inputs and an output

Two

Four

Three

One

39 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+1=1

A+A'=1

A+A=A

A+0=A

40 / 43

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

None Of The Option

C++

Machine level

41 / 43

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

42 / 43

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

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

(A')'=A

A+(A.B)=A

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

43 / 43

The base value of decimal number system is _____.

Your score is

The average score is 63%

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