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

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

NOT

XOR

NOR

None

2 / 43

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

3 / 43

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

4 / 43

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

A+1=1

A+A'=1

A+0=A

A+A=A

5 / 43

Boolean algebra can be used to

Perform arithmetic equations

Solve the equations

None

Simplify any algebraic expression

6 / 43

Which of the following is not a positional number system?

Octal number system

Binary number system

Roman number system

Decimal number system

7 / 43

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

8 / 43

A basic AND gate consists of ______ inputs and an output

Three

Two

Four

One

9 / 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 sum of their individual complements

The product of their individual complements

10 / 43

An XOR gate gives a high output

All of the option

If there are odd numbers of 1s in the input

If there are even numbers of 1s in the input

Complement of OR gate

11 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+A'=1

A+0=A

A+1=1

A+A=A

12 / 43

The output of two input OR gage is high

Only if both inputs are high

Only if one input is high and the other is low

If at least one of the inputs is high

Only if both inputs are low

13 / 43

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

1011

1234

0101

0110

14 / 43

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

Input

Result

Logic expression

None

15 / 43

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

XOR

AND

NOT

16 / 43

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

A-

A+

17 / 43

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

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

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

A+(A.B)=A

(A')'=A

18 / 43

An XNOR gate gives a high output

NOT gate followed by an exclusive XOR gates

Exclusive OR gate followed by an inverter

Inverter followed by an XOR gate

Complement of a NOR gate

19 / 43

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

A+A=A

A+A'=1

A+1=1

A+0=A

20 / 43

Which of the following is the Distributive 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

21 / 43

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

C++

Machine level

None Of The Option

22 / 43

Which of the following is valid in Boolean algebra?

A+A=A

Both A+A=2A and A+A

A+A=2A

None

23 / 43

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

A+0=A

A+A=A

A+1=1

A+A'=1

24 / 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

25 / 43

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

Low

Medium

None

High

26 / 43

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

Acharya Kanad

Earle Dickson

George Boole

Mary Anderson

27 / 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 sum of their individual complements

The complement of the sum

None

28 / 43

Which of the following is the Absorption 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

29 / 43

The value of radix of hexadecimal number system is _______.

30 / 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)

31 / 43

The output of a two input AND gate is 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

Only if both the inputs are high

32 / 43

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

33 / 43

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

NOR gate

Exclusive OR gate

NAND gate

Exclusive NOR gate

34 / 43

Base of number is also called as ________.

Entity

Medium

Radix

Root

35 / 43

NAND gate means

Inversion followed AND gate

AND gate followed by an inverter

AND gate followed by an OR gates

None

36 / 43

Two inputs Exclusive NOR gate gives high output

Only when both the inputs are high

When the both the inputs are same

Only when the both the inputs are low

When one input is high and the other is low

37 / 43

Which of the following is universal gate?

AND

NOT

NAND

38 / 43

Which of the following is the Commutative Law of Boolean Algebra

A+B=B+A

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

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

A+(A.B)=A

39 / 43

The base value of decimal number system is _____.

40 / 43

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

Positive

Both A and B

Negative

None

41 / 43

Which of the following is the Associative 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

42 / 43

Which is the least significant digit of 1234?

43 / 43

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

NOT

XOR

AND

Your score is

The average score is 65%

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