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+A'=1

A+1=1

2 / 43

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

XOR

AND

NOT

3 / 43

Which of the following is universal gate?

NAND

AND

NOT

4 / 43

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

Medium

Low

None

High

5 / 43

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

A+0=A

A+A=A

A+A'=1

A+1=1

6 / 43

Which is the least significant digit of 1234?

7 / 43

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

8 / 43

Which of the following is the Commutative Law of Boolean Algebra

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

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

A+(A.B)=A

A+B=B+A

9 / 43

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

10 / 43

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

None Of The Option

Machine level

C++

11 / 43

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

A-

A+

12 / 43

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

Exclusive NOR gate

NAND gate

Exclusive OR gate

NOR gate

13 / 43

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

14 / 43

Base of number is also called as ________.

Radix

Medium

Entity

Root

15 / 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

16 / 43

A basic AND gate consists of ______ inputs and an output

Four

Two

Three

One

17 / 43

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

Earle Dickson

Mary Anderson

George Boole

Acharya Kanad

18 / 43

Which of the following is valid in Boolean algebra?

None

A+A=A

Both A+A=2A and A+A

A+A=2A

19 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+0=A

A+A'=1

A+A=A

A+1=1

20 / 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

None

The complement of the sum

The sum of their individual complements

21 / 43

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

22 / 43

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

A+B=B+A

A+(A.B)=A

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

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

23 / 43

NAND gate means

Inversion followed AND gate

None

AND gate followed by an inverter

AND gate followed by an OR gates

24 / 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

If at least one of the inputs is low

Only if both the inputs are low

25 / 43

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

0110

0101

1011

1234

26 / 43

An XOR gate gives a high output

If there are odd numbers of 1s in the input

All of the option

If there are even numbers of 1s in the input

Complement of OR gate

27 / 43

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

AND

NOT

XOR

28 / 43

The base value of decimal number system is _____.

29 / 43

Which of the following is the Distributive 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

30 / 43

The output of two input NAND 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

31 / 43

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

Result

Input

Logic expression

None

32 / 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

33 / 43

The output of two input OR gage is high

Only if both inputs are low

If at least one of the inputs is high

Only if both inputs are high

Only if one input is high and the other is low

34 / 43

The value of radix of hexadecimal number system is _______.

35 / 43

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

XOR

NOR

NOT

None

36 / 43

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

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

(A')'=A

A+(A.B)=A

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

37 / 43

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

A+A=A

A+1=1

A+0=A

A+A'=1

38 / 43

An XNOR gate gives a high output

Inverter followed by an XOR gate

NOT gate followed by an exclusive XOR gates

Exclusive OR gate followed by an inverter

Complement of a NOR gate

39 / 43

Boolean algebra can be used to

Perform arithmetic equations

None

Solve the equations

Simplify any algebraic expression

40 / 43

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

A+(A.B)=A

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

A+B=B+A

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

41 / 43

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

A+(A.B)=A

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

(A')'=A

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

42 / 43

Which of the following is not a positional number system?

Binary number system

Octal number system

Roman number system

Decimal number system

43 / 43

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

None

Both A and B

Negative

Positive

Your score is

The average score is 66%

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