ICSE Class 12 Computer Applications by Pavan | Practice Test to Test Your Knowledge
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ICSE Class 12 Computer Applications

ICSE Class 12 Computer Applications

Comprehensive mock test on Programming, Database Management, and Web Development. Features coding problems, theoretical questions, and practical applications.

2025-07-20
Pavan Pavan
ICSE Class 12 Grade 12 Computer Application

Duration

30 min

Questions

30

Marking

Negative

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Questions Preview

What is the binary representation of the decimal number 12?

A
1100
B
1011
C
1111
D
1001

Which of the following is the octal representation of the binary number 101101?

A
55
B
63
C
67
D
52

What is the hexadecimal representation of the decimal number 255?

A
FF
B
F0
C
FF0
D
EE

Which of the following is the correct binary addition of 1011 and 1101?

A
11000
B
10100
C
11110
D
10010

What is the result of subtracting 1010 (binary) from 1101 (binary)?

A
0111
B
0101
C
0011
D
1100

In binary addition, what is the carry in the addition of 1 + 1?

A
1
B
0
C
2
D
No carry

Which of the following is the 2's complement of the binary number 1010?

A
0110
B
1101
C
1011
D
1001

What is the decimal equivalent of the hexadecimal number 1F?

A
31
B
25
C
35
D
15

Which of the following is the correct result of converting the decimal number 19 into binary?

A
10011
B
10101
C
11101
D
10110

What is the octal equivalent of the binary number 101010?

A
52
B
42
C
62
D
72

What is the result of subtracting 110 (binary) from 1111 (binary)?

A
1011
B
111
C
1000
D
1010

What is the hexadecimal equivalent of the binary number 11110010?

A
F2
B
A2
C
F1
D
E2

What is the result of the binary operation 101 + 1011?

A
10000
B
11000
C
11100
D
10100

In the 1's complement of a number, what happens when you add 1 to the 1's complement result?

A
It results in the 2's complement
B
The number becomes positive
C
It causes an overflow
D
The number becomes zero

What is the 1's complement of the binary number 101010?

A
010101
B
101011
C
110110
D
001100

Which of the following is the correct operation of 2's complement addition of 1111 and 0011?

A
10100
B
11000
C
11111
D
10001

What is the result of the subtraction operation 1011 - 1101 in binary using 2's complement?

A
0110
B
1000
C
0101
D
1110

Which of the following is the correct procedure for converting a decimal number to binary?

A
Divide the number by 2, record the remainder, and continue until the quotient is 0
B
Divide the number by 10, and take the remainder
C
Divide the number by 8 and record the remainder
D
Convert each digit of the decimal number to binary individually

What is the hexadecimal equivalent of the binary number 10101010?

A
AA
B
10
C
B0
D
BB

What happens when you add 1 to the binary number 1111?

A
10000
B
11110
C
0000
D
1100

In the 1's complement method, what is the representation of -5 (in 8-bit)?

A
11111011
B
11110101
C
11111100
D
11111111

What is the 2's complement of the binary number 10101101?

A
01010011
B
01010110
C
01100101
D
01011000

How do you convert an octal number to decimal?

A
Multiply each digit of the octal number by 8 raised to the corresponding power
B
Multiply each digit by 10 raised to the corresponding power
C
Divide the octal number by 10 and take the remainder
D
Multiply each digit by 2 raised to the corresponding power

Which binary operation is performed in the 2's complement method to represent negative numbers?

A
Invert all bits and add 1
B
Invert all bits
C
Add 1 to the number
D
Subtract the number from 1

What is the binary representation of the hexadecimal number A3?

A
10100011
B
10011011
C
11000011
D
11010011

What does the operation of 1's complement addition involve?

A
Adding the two numbers, and if there is a carry, add it to the sum
B
Adding the numbers without considering carry
C
Adding the two numbers and inverting the bits of the result
D
Subtracting the numbers and adding carry

How do you convert a binary number to hexadecimal?

A
Group the binary number into sets of four bits and convert each group to its hexadecimal equivalent
B
Convert the binary number to decimal and then to hexadecimal
C
Convert the binary number to octal and then to hexadecimal
D
Divide the binary number by 16

In binary addition, what is the result of 1011 + 1101?

A
11000
B
10000
C
11110
D
10100

What is the purpose of 2's complement in binary numbers?

A
To represent negative numbers in binary form
B
To increase the magnitude of the number
C
To convert decimal numbers into binary
D
To calculate the addition of two binary numbers

Which base does the hexadecimal system use?

A
16
B
8
C
10
D
2