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

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

A+(A.B)=A

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

A+B=B+A

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

3 / 43

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

Machine level

None Of The Option

C++

4 / 43

The output of a two input AND 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

5 / 43

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

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

A+B=B+A

A+(A.B)=A

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

6 / 43

The value of radix of hexadecimal number system is _______.

7 / 43

NAND gate means

AND gate followed by an OR gates

None

Inversion followed AND gate

AND gate followed by an inverter

8 / 43

Which of the following is the Commutative Law of Boolean Algebra

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

A+B=B+A

A+(A.B)=A

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

9 / 43

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

10 / 43

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

(A')'=A

A+(A.B)=A

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

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

11 / 43

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

A+A'=1

A+A=A

A+1=1

A+0=A

12 / 43

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

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

A+(A.B)=A

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

(A')'=A

13 / 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

14 / 43

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

Earle Dickson

Acharya Kanad

George Boole

Mary Anderson

15 / 43

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

A+0=A

A+A'=1

A+A=A

A+1=1

16 / 43

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

Result

Input

None

Logic expression

17 / 43

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

A+0=A

A+A=A

A+1=1

A+A'=1

18 / 43

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

Exclusive OR gate

Exclusive NOR gate

NOR gate

NAND gate

19 / 43

Boolean algebra can be used to

Simplify any algebraic expression

Perform arithmetic equations

Solve the equations

None

20 / 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

21 / 43

An XOR gate gives a high output

Complement of OR gate

If there are odd numbers of 1s in the input

All of the option

If there are even numbers of 1s in the input

22 / 43

Base of number is also called as ________.

Medium

Radix

Root

Entity

23 / 43

Which of the following is valid in Boolean algebra?

Both A+A=2A and A+A

None

A+A=A

A+A=2A

24 / 43

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

NOT

XOR

AND

25 / 43

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

AND

NOT

XOR

26 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+A=A

A+0=A

A+A'=1

A+1=1

27 / 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

28 / 43

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

1234

0110

0101

1011

29 / 43

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

Both A and B

Negative

Positive

None

30 / 43

The base value of decimal number system is _____.

31 / 43

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

32 / 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 the both the inputs are low

Only when both the inputs are high

33 / 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 low

Only if both the inputs are high

34 / 43

Which is the least significant digit of 1234?

35 / 43

A basic AND gate consists of ______ inputs and an output

Four

Three

One

Two

36 / 43

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

A-

A+

37 / 43

Which of the following is not a positional number system?

Decimal number system

Octal number system

Binary number system

Roman number system

38 / 43

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

NOT

NOR

None

XOR

39 / 43

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

40 / 43

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

41 / 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

42 / 43

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

None

The sum of their individual complements

The product of their individual complements

The complement of the sum

43 / 43

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

Medium

High

Low

None

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The average score is 68%

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