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 universal gate?

NAND

NOT

AND

2 / 43

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

NOT

AND

XOR

3 / 43

Which is the least significant digit of 1234?

4 / 43

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

Negative

Positive

None

Both A and B

5 / 43

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

6 / 43

Base of number is also called as ________.

Entity

Root

Radix

Medium

7 / 43

A basic AND gate consists of ______ inputs and an output

Four

Three

One

Two

8 / 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'

9 / 43

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

George Boole

Mary Anderson

Acharya Kanad

Earle Dickson

10 / 43

The output of two input NAND gate is high

Only if both the inputs are 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

11 / 43

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

0101

1011

0110

1234

12 / 43

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

A+(A.B)=A

A+B=B+A

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

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

13 / 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

When the both the inputs are same

Only when the both the inputs are low

14 / 43

Which of the following is not a positional number system?

Binary number system

Roman number system

Octal number system

Decimal number system

15 / 43

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

16 / 43

Which of the following is the Distributive 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

17 / 43

An XOR gate gives a high output

If there are odd numbers of 1s in the input

If there are even numbers of 1s in the input

Complement of OR gate

All of the option

18 / 43

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

The product of their individual complements

The complement of the sum

None

The sum of their individual complements

19 / 43

The base value of decimal number system is _____.

20 / 43

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

C++

Machine level

None Of The Option

21 / 43

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

A-

A+

22 / 43

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

None

NOT

NOR

XOR

23 / 43

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

A+0=A

A+A=A

A+A'=1

A+1=1

24 / 43

Which of the following is the Commutative Law of Boolean Algebra

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

A+(A.B)=A

A+B=B+A

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

25 / 43

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

NAND gate

Exclusive NOR gate

NOR gate

Exclusive OR gate

26 / 43

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

27 / 43

An XNOR gate gives a high output

Complement of a NOR gate

Inverter followed by an XOR gate

NOT gate followed by an exclusive XOR gates

Exclusive OR gate followed by an inverter

28 / 43

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

NOT

XOR

AND

29 / 43

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

High

Low

Medium

None

30 / 43

Boolean algebra can be used to

Perform arithmetic equations

Simplify any algebraic expression

None

Solve the equations

31 / 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

Only if both inputs are high

If at least one of the inputs is high

32 / 43

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

None

Result

Logic expression

Input

33 / 43

The value of radix of hexadecimal number system is _______.

34 / 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

35 / 43

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

A+0=A

A+A'=1

A+1=1

A+A=A

36 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+A'=1

A+0=A

A+1=1

A+A=A

37 / 43

Which of the following is valid in Boolean algebra?

A+A=A

A+A=2A

None

Both A+A=2A and A+A

38 / 43

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

39 / 43

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

A+A'=1

A+A=A

A+0=A

A+1=1

40 / 43

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

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

(A')'=A

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

A+(A.B)=A

41 / 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

42 / 43

NAND gate means

Inversion followed AND gate

AND gate followed by an inverter

AND gate followed by an OR gates

None

43 / 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

Only if both the inputs are low

If at least one of the inputs is low

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