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

Input

Result

Logic expression

None

2 / 43

NAND gate means

None

AND gate followed by an OR gates

Inversion followed AND gate

AND gate followed by an inverter

3 / 43

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

A+1=1

A+A'=1

A+A=A

A+0=A

4 / 43

Which of the following is not a positional number system?

Decimal number system

Binary number system

Octal number system

Roman number system

5 / 43

Which is the least significant digit of 1234?

6 / 43

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

A+(A.B)=A

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

(A')'=A

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

7 / 43

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

A+A=A

A+0=A

A+1=1

A+A'=1

8 / 43

The base value of decimal number system is _____.

9 / 43

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

A+1=1

A+0=A

A+A=A

A+A'=1

10 / 43

The output of a two input AND gate is high

Only if one inputs is high and the is low

Only if both the inputs are high

Only if both the inputs are low

If at least one of the inputs is low

11 / 43

Which of the following is the Commutative 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

12 / 43

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

13 / 43

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

14 / 43

Which of the following is the Associative 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

15 / 43

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

A+

A-

16 / 43

The output of two input NAND 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 high

Only if both the inputs are low

17 / 43

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

Exclusive OR gate

Exclusive NOR gate

NAND gate

NOR gate

18 / 43

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

XOR

NOT

AND

19 / 43

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

Both A and B

Positive

Negative

None

20 / 43

An XOR gate gives a high output

If there are even numbers of 1s in the input

Complement of OR gate

If there are odd numbers of 1s in the input

All of the option

21 / 43

A basic AND gate consists of ______ inputs and an output

Two

Three

One

Four

22 / 43

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

23 / 43

Which of the following is valid in Boolean algebra?

Both A+A=2A and A+A

A+A=A

A+A=2A

None

24 / 43

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

XOR

None

NOR

NOT

25 / 43

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

Medium

None

High

Low

26 / 43

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

Mary Anderson

Earle Dickson

Acharya Kanad

George Boole

27 / 43

An XNOR gate gives a high output

NOT gate followed by an exclusive XOR gates

Exclusive OR gate followed by an inverter

Complement of a NOR gate

Inverter followed by an XOR gate

28 / 43

Two inputs Exclusive NOR gate gives high output

When the both the inputs are same

Only when both the inputs are high

When one input is high and the other is low

Only when the both the inputs are low

29 / 43

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

Machine level

None Of The Option

C++

30 / 43

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

A+B=B+A

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

A+(A.B)=A

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

31 / 43

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

0110

1234

1011

0101

32 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+A'=1

A+1=1

A+0=A

A+A=A

33 / 43

The value of radix of hexadecimal number system is _______.

34 / 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

35 / 43

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

36 / 43

Which of the following is universal gate?

NOT

NAND

AND

37 / 43

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

NOT

XOR

AND

38 / 43

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

A+(A.B)=A

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

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

(A')'=A

39 / 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

40 / 43

Base of number is also called as ________.

Entity

Radix

Medium

Root

41 / 43

Boolean algebra can be used to

None

Solve the equations

Perform arithmetic equations

Simplify any algebraic expression

42 / 43

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

None

The product of their individual complements

The complement of the sum

The sum of their individual complements

43 / 43

Which of the following is the Distributive 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)

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The average score is 68%

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