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 not a positional number system?

Octal number system

Roman number system

Decimal number system

Binary number system

2 / 43

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

Medium

None

High

Low

3 / 43

A basic AND gate consists of ______ inputs and an output

Three

Two

One

Four

4 / 43

Which of the following is the Distributive 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)

5 / 43

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

NOR gate

Exclusive NOR gate

Exclusive OR gate

NAND gate

6 / 43

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

7 / 43

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

A+1=1

A+A=A

A+A'=1

A+0=A

8 / 43

NAND gate means

AND gate followed by an inverter

Inversion followed AND gate

None

AND gate followed by an OR gates

9 / 43

Which of the following is universal gate?

AND

NOT

NAND

10 / 43

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

A+0=A

A+1=1

A+A=A

A+A'=1

11 / 43

The output of a two input AND gate is high

Only if both the inputs are high

Only if both the inputs are low

If at least one of the inputs is low

Only if one inputs is high and the is low

12 / 43

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

13 / 43

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

C++

Machine level

None Of The Option

14 / 43

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

A-

A+

15 / 43

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

A+0=A

A+A'=1

A+1=1

A+A=A

16 / 43

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

0110

1234

1011

0101

17 / 43

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

Earle Dickson

Mary Anderson

Acharya Kanad

George Boole

18 / 43

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

NOT

XOR

AND

19 / 43

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

NOT

None

NOR

XOR

20 / 43

Which of the following is the Absorption 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

21 / 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

22 / 43

An XNOR gate gives a high output

Inverter followed by an XOR gate

NOT gate followed by an exclusive XOR gates

Complement of a NOR gate

Exclusive OR gate followed by an inverter

23 / 43

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

Input

Logic expression

None

Result

24 / 43

The base value of decimal number system is _____.

25 / 43

An XOR gate gives a high output

If there are odd numbers of 1s in the input

Complement of OR gate

All of the option

If there are even numbers of 1s in the input

26 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+A=A

A+0=A

A+1=1

A+A'=1

27 / 43

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

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

A+(A.B)=A

(A')'=A

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

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

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

30 / 43

Boolean algebra can be used to

None

Perform arithmetic equations

Solve the equations

Simplify any algebraic expression

31 / 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 complement of the sum

The product of their individual complements

None

32 / 43

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

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

Which of the following is valid in Boolean algebra?

A+A=A

A+A=2A

Both A+A=2A and A+A

None

35 / 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 sum of their individual complements

The complement of the sum

36 / 43

Base of number is also called as ________.

Root

Entity

Radix

Medium

37 / 43

The value of radix of hexadecimal number system is _______.

38 / 43

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

NOT

AND

XOR

39 / 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

40 / 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

41 / 43

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

Positive

None

Both A and B

Negative

42 / 43

Which is the least significant digit of 1234?

43 / 43

Which of the following is the Commutative 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

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The average score is 65%

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