Number System MCQ Questions with Answers
1
What is a number system?
A way to represent data in computers
A method for organizing mathematical operations
A set of symbols and rules for representing numbers
A programming language for numerical computation
2
Which of the following is a base-2 number system?
Decimal
Binary
Octal
Hexadecimal
3
Which of the following number systems uses digits from 0 to 7?
Binary
Decimal
Octal
Hexadecimal
4
In which number system is the letter 'F' used to represent the decimal value 15?
Binary
Octal
Decimal
Hexadecimal
5
Which of the following statements is true regarding number systems?
The binary system is less efficient than the decimal system.
The octal system uses ten digits.
The hexadecimal system is base-16.
The decimal system uses only even digits.
6
Which number system is most commonly used in digital electronics?
Decimal
Binary
Octal
Hexadecimal
7
What is the binary sum of 1010 and 1001?
10011
11001
10010
11100
8
What is the binary subtraction of 1101 and 0110?
0011
0111
1011
1001
9
What is the hexadecimal equivalent of the binary number 1010?
A
B
C
D
10
What is the largest digit in the decimal number system?
8
9
10
11
11
Which system is primarily used for human-friendly representation of binary-coded values?
Decimal
Octal
Hexadecimal
All of the above
12
In binary subtraction, what do you do if the top digit is smaller than the bottom digit?
Ignore the digits
Borrow from the next left column
Subtract and keep the smaller number
Add the digits
