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

An XOR gate gives a high output

If there are odd numbers of 1s in the input

All of the option

Complement of OR gate

If there are even numbers of 1s in the input

2 / 43

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

Input

Result

Logic expression

None

3 / 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

The sum of their individual complements

None

4 / 43

The base value of decimal number system is _____.

5 / 43

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

6 / 43

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

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

A+B=B+A

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

A+(A.B)=A

7 / 43

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

Positive

None

Negative

Both A and B

8 / 43

Which of the following is valid in Boolean algebra?

A+A=2A

A+A=A

Both A+A=2A and A+A

None

9 / 43

Two inputs Exclusive NOR gate gives high output

When one input is high and the other is low

When the both the inputs are same

Only when both the inputs are high

Only when the both the inputs are low

10 / 43

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

Medium

Low

None

High

11 / 43

The output of two input NAND gate is high

Only if both the inputs are low

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

12 / 43

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

A+

A-

13 / 43

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

Machine level

C++

None Of The Option

14 / 43

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

(A')'=A

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

A+(A.B)=A

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

15 / 43

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

1011

0101

0110

1234

16 / 43

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

NOR

NOT

None

XOR

17 / 43

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

AND

NOT

XOR

18 / 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

19 / 43

The output of two input OR gage is high

Only if both inputs are low

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 high

20 / 43

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

XOR

AND

NOT

21 / 43

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

A+A=A

A+0=A

A+1=1

A+A'=1

22 / 43

Which of the following is universal gate?

NAND

NOT

AND

23 / 43

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

24 / 43

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

Mary Anderson

Earle Dickson

George Boole

Acharya Kanad

25 / 43

Which is the least significant digit of 1234?

26 / 43

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

27 / 43

The output of a two input AND gate is high

If at least one of the inputs is low

Only if both the inputs are high

Only if both the inputs are low

Only if one inputs is high and the is low

28 / 43

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

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

A+(A.B)=A

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

(A')'=A

29 / 43

An XNOR gate gives a high output

Inverter followed by an XOR gate

Exclusive OR gate followed by an inverter

NOT gate followed by an exclusive XOR gates

Complement of a NOR gate

30 / 43

Base of number is also called as ________.

Root

Medium

Radix

Entity

31 / 43

Which of the following is the Commutative 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

32 / 43

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

None

The sum of their individual complements

The complement of the sum

The product of their individual complements

33 / 43

Boolean algebra can be used to

None

Solve the equations

Simplify any algebraic expression

Perform arithmetic equations

34 / 43

A basic AND gate consists of ______ inputs and an output

Two

Three

One

Four

35 / 43

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

Exclusive NOR gate

Exclusive OR gate

NOR gate

NAND gate

36 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+0=A

A+A'=1

A+1=1

A+A=A

37 / 43

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

A+0=A

A+A'=1

A+A=A

A+1=1

38 / 43

NAND gate means

AND gate followed by an inverter

Inversion followed AND gate

None

AND gate followed by an OR gates

39 / 43

Which of the following is the Absorption 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

40 / 43

Which of the following is not a positional number system?

Roman number system

Binary number system

Octal number system

Decimal number system

41 / 43

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

42 / 43

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

A+A'=1

A+0=A

A+1=1

A+A=A

43 / 43

The value of radix of hexadecimal number system is _______.

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