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

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

Positive

Both A and B

Negative

None

2 / 43

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

Machine level

None Of The Option

C++

3 / 43

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

Acharya Kanad

George Boole

Mary Anderson

Earle Dickson

4 / 43

Which of the following is valid in Boolean algebra?

None

A+A=A

Both A+A=2A and A+A

A+A=2A

5 / 43

Which of the following is Idempotent Law of Boolean Algebra?

A+A=A

A+A'=1

A+0=A

A+1=1

6 / 43

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

NOT

XOR

NOR

None

7 / 43

Boolean algebra can be used to

Perform arithmetic equations

Solve the equations

None

Simplify any algebraic expression

8 / 43

An XNOR gate gives a high output

Complement of a NOR gate

Exclusive OR gate followed by an inverter

NOT gate followed by an exclusive XOR gates

Inverter followed by an XOR gate

9 / 43

Which of the following is not a positional number system?

Decimal number system

Binary number system

Octal number system

Roman number system

10 / 43

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

None

The product of their individual complements

The sum of their individual complements

The complement of the sum

11 / 43

A basic AND gate consists of ______ inputs and an output

Two

Four

Three

One

12 / 43

The value of radix of hexadecimal number system is _______.

13 / 43

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

NOT

XOR

AND

14 / 43

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

A+(A.B)=A

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

(A')'=A

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

15 / 43

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

A-

A+

16 / 43

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

17 / 43

Which of the following is the Associative 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

18 / 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=B+A

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

19 / 43

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

20 / 43

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

AND

NOT

XOR

21 / 43

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

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

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

0110

1011

0101

1234

24 / 43

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

Exclusive NOR gate

NAND gate

Exclusive OR gate

NOR gate

25 / 43

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

A+(A.B)=A

(A')'=A

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

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

26 / 43

Which of the following is the Commutative Law of Boolean Algebra

A+B=B+A

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

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

A+(A.B)=A

27 / 43

NAND gate means

None

AND gate followed by an OR gates

Inversion followed AND gate

AND gate followed by an inverter

28 / 43

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

A+A'=1

A+0=A

A+A=A

A+1=1

29 / 43

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

Result

None

Input

Logic expression

30 / 43

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

A+A=A

A+1=1

A+0=A

A+A'=1

31 / 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

32 / 43

The base value of decimal number system is _____.

33 / 43

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

The sum of their individual complements

None

The complement of the sum

The product of their individual complements

34 / 43

Base of number is also called as ________.

Medium

Radix

Entity

Root

35 / 43

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

A+1=1

A+0=A

A+A'=1

A+A=A

36 / 43

The output of two input NAND gate is high

Only if both the inputs are low

Only if both the inputs are high

If at least one of the inputs is low

Only if one inputs is high and the is low

37 / 43

Which of the following is universal gate?

AND

NAND

NOT

38 / 43

An XOR gate gives a high output

All of the option

If there are even numbers of 1s in the input

If there are odd numbers of 1s in the input

Complement of OR gate

39 / 43

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

40 / 43

Two inputs Exclusive NOR gate gives high output

When the both the inputs are same

Only when the both the inputs are low

Only when both the inputs are high

When one input is high and the other is low

41 / 43

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

High

None

Low

Medium

42 / 43

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

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

A+(A.B)=A

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

A+B=B+A

43 / 43

Which is the least significant digit of 1234?

Your score is

The average score is 0%

Post Views: 1,228