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

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

A+0=A

A+A=A

A+1=1

A+A'=1

2 / 43

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

The complement of the sum

The product of their individual complements

None

The sum of their individual complements

3 / 43

The output of two input OR gage is high

Only if both inputs are low

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

4 / 43

The value of radix of hexadecimal number system is _______.

5 / 43

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

NOR

None

XOR

NOT

6 / 43

Two inputs Exclusive NOR gate gives high output

Only when both the inputs are high

Only when the both the inputs are low

When the both the inputs are same

When one input is high and the other is low

7 / 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

8 / 43

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

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

A+(A.B)=A

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

A+B=B+A

9 / 43

NAND gate means

AND gate followed by an OR gates

AND gate followed by an inverter

Inversion followed AND gate

None

10 / 43

The output of two input NAND 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

11 / 43

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

AND

XOR

NOT

12 / 43

The output of a two input AND gate is high

If at least one of the inputs is low

Only if one inputs is high and the is low

Only if both the inputs are low

Only if both the inputs are high

13 / 43

Boolean algebra can be used to

Simplify any algebraic expression

None

Perform arithmetic equations

Solve the equations

14 / 43

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

None Of The Option

C++

Machine level

15 / 43

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

A+1=1

A+A=A

A+A'=1

A+0=A

16 / 43

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

NOR gate

Exclusive OR gate

Exclusive NOR gate

NAND gate

17 / 43

Which of the following is universal gate?

AND

NAND

NOT

18 / 43

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

Mary Anderson

Earle Dickson

Acharya Kanad

George Boole

19 / 43

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

NOT

AND

XOR

20 / 43

Which of the following is not a positional number system?

Decimal number system

Binary number system

Roman number system

Octal number system

21 / 43

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

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

A+B=B+A

A+(A.B)=A

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

22 / 43

An XNOR gate gives a high output

Complement of a NOR gate

Exclusive OR gate followed by an inverter

Inverter followed by an XOR gate

NOT gate followed by an exclusive XOR gates

23 / 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

The complement of the sum

None

The product of their individual complements

24 / 43

The base value of decimal number system is _____.

25 / 43

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

A+(A.B)=A

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

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

(A')'=A

26 / 43

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

1234

0101

0110

1011

27 / 43

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

None

Both A and B

Negative

Positive

28 / 43

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

29 / 43

Which is the least significant digit of 1234?

30 / 43

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

Medium

None

High

Low

31 / 43

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

A-

A+

32 / 43

Which of the following is the Commutative Law of Boolean Algebra

A+(A.B)=A

A+B=B+A

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

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

33 / 43

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

34 / 43

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

35 / 43

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

A+A'=1

A+1=1

A+A=A

A+0=A

36 / 43

Which of the following is valid in Boolean algebra?

Both A+A=2A and A+A

A+A=2A

None

A+A=A

37 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+A=A

A+A'=1

A+0=A

A+1=1

38 / 43

Base of number is also called as ________.

Root

Medium

Radix

Entity

39 / 43

Which of the following is the Distributive 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

40 / 43

A basic AND gate consists of ______ inputs and an output

Three

Four

Two

One

41 / 43

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

42 / 43

An XOR gate gives a high output

All of the option

Complement of OR gate

If there are odd numbers of 1s in the input

If there are even numbers of 1s in the input

43 / 43

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

None

Input

Result

Logic expression

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