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

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

A+

A-

2 / 43

Which of the following is valid in Boolean algebra?

A+A=A

Both A+A=2A and A+A

None

A+A=2A

3 / 43

An XNOR gate gives a high output

Inverter followed by an XOR gate

Exclusive OR gate followed by an inverter

Complement of a NOR gate

NOT gate followed by an exclusive XOR gates

4 / 43

Which of the following is not a positional number system?

Octal number system

Binary number system

Roman number system

Decimal number system

5 / 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 both the inputs are low

Only if one inputs is high and the is low

6 / 43

Which of the following is the Absorption 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

7 / 43

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

8 / 43

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

Positive

Both A and B

None

Negative

9 / 43

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

A+(A.B)=A

(A')'=A

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

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

10 / 43

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

11 / 43

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

Machine level

C++

None Of The Option

12 / 43

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

A+(A.B)=A

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

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

(A')'=A

13 / 43

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

A+1=1

A+A'=1

A+0=A

A+A=A

14 / 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

15 / 43

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

Earle Dickson

Acharya Kanad

Mary Anderson

George Boole

16 / 43

The value of radix of hexadecimal number system is _______.

17 / 43

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

XOR

NOT

NOR

None

18 / 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

19 / 43

Base of number is also called as ________.

Radix

Root

Entity

Medium

20 / 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

21 / 43

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

XOR

AND

NOT

22 / 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

23 / 43

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

Exclusive NOR gate

NAND gate

NOR gate

Exclusive OR gate

24 / 43

Boolean algebra can be used to

None

Solve the equations

Perform arithmetic equations

Simplify any algebraic expression

25 / 43

Which is the least significant digit of 1234?

26 / 43

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

27 / 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

28 / 43

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

1011

1234

0101

0110

29 / 43

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

The complement of the sum

None

The sum of their individual complements

The product of their individual complements

30 / 43

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

A+0=A

A+A'=1

A+A=A

A+1=1

31 / 43

The base value of decimal number system is _____.

32 / 43

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

Medium

Low

None

High

33 / 43

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

Input

Logic expression

Result

None

34 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+A'=1

A+1=1

A+0=A

A+A=A

35 / 43

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

AND

XOR

NOT

36 / 43

An XOR gate gives a high output

All of the option

Complement of OR gate

If there are even numbers of 1s in the input

If there are odd numbers of 1s in the input

37 / 43

The output of two input OR gage is 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

Only if both inputs are high

38 / 43

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

39 / 43

A basic AND gate consists of ______ inputs and an output

One

Three

Two

Four

40 / 43

Which of the following is universal gate?

AND

NOT

NAND

41 / 43

NAND gate means

None

AND gate followed by an inverter

Inversion followed AND gate

AND gate followed by an OR gates

42 / 43

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

A+A=A

A+A'=1

A+0=A

A+1=1

43 / 43

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

The sum of their individual complements

The product of their individual complements

The complement of the sum

None

Your score is

The average score is 68%

Post Views: 1,388