Q L Question A B C D E Answer

No ev
el
1 Convert hexadecimal value 16 to 2210 1610 1010 2010 A
decimal.

2 Convert the following decimal 101110112 110111012 101111012 101111002 A

number to 8-bit binary.
187
3 Convert binary 111111110010 to EE216 FF216 2FE16 FD216 B
hexadecimal.

4 Convert the following binary 11 15 13 10 A

number to decimal.
010112
5 Convert the binary number 90.12 9.125 125 12.5 B
1001.00102 to decimal.

6 Which of the following is the most Gray ASCII Parity EBCDIC B

widely used alphanumeric code for
computer input and output?
7 Convert 59.7210 to BCD. 111011 01011001.011 1110.11 0101100101110010 B
10010

8 Convert 8B3F16 to binary. 35647 011010 1011001111100011 1000101100111111 D

9 Which is typically the longest: bit, Bit Byte Nibble Word D

byte, nibble, word?
10 Assign the proper odd parity bit to 1111011 1111001 0111111 0011111 B
the code 111001.

11 Convert decimal 64 to binary 01010010 01000000 00110110 01001000 B

12 Convert the following binary 1728 2728 1748 2748 D

number to octal.0101111002

13 Convert the following octal number 15 57 51 17 A

to decimal.178

14 How many binary digits are required 7 100 10 22 A

to count to 10010

15 The BCD number for decimal 347 is 1100 1011 1000 0011 0100 0011 0100 0001 1100 1011 0110 B
0111

16 The expression Y=(A+B)(B+C) AND POS SOP NAND B

(C+A) shows the operation

17 The sum of 11101 + 10111 equals 110011 100001 110100 100100 C

18 Convert the following binary 154 153 157 151 A

number to decimal.100110102

19 The decimal number 188 is equal to 10111100 0111000 1100011 1111000 A

the binary number
20 Convert the following binary 1538 3518 2538 3528 A
number to octal.0011010112

21 The logical sum of two or more SOP POS OR Operation NAND Operation A
logical product terms is called --

22 Convert decimal 213 to binary. 11001101 11010101 01111001 11100011 B

23 The decimal number for octal 748 is 74 22 64 84 B

_

24 What is the minimum number of 1 2 3 4 C

two-input NAND gates used to
perform the function of two input
OR gate ?
25 Convert binary 01001110 to 4E 78 76 116 B
decimal.

26 The binary number 1110 is equal to 3 7 1 14 D

the decimal number

27 DeMorgan’s theorem states that (AB)’ = A’ + B’ (A + B)’ = A’ A’ + B’ = A’B’ (AB)’ = A’ + B A

_________ *B

28 Convert 11001010001101012 to 121035 CA35 53AC1 530121 B

hexadecimal.

29 Convert the following decimal 1348 4318 3318 1338 B

number 281 to octal.
30 When using even parity, where is Before the MSB After the LSB In the parity word After the odd parity A
the parity bit placed? bit

31 The range of integers in 2’s -8 to +8 -7 to +7 -8 to +7 -7 to +8 C

complement representation using 4
bits(including sign bit)

32 In which of the following gates, the NOR AND OR NAND C

output is 1, if and only if at least one
input is 1?
33 Convert (123.321) 8 in binary 001010011.011 111010011.01 01010011.01101001 01010011.011010111 A
number system is 010001 1010001 1

34 According to boolean law: 1 A 0 A’ A

A+1=?

35 (101 – 100) in 1's 11. B

complement 0 1 10

36 2's complement of 1101100 is 0010100 1001010 001011 0010101 A

37 Represent -9 in 10001001 11110110 11110111 11110011 C

2's complement form?

38 What logic function is produced by NAND NOR XOR OR A

adding an inverter to the output of
an AND gate ?
39 In boolean algebra, the OR operation Associative Commutative Distributive all of the above D
is performed by which properties
40 Negative integers can be represented Signed numbers 1’s 2’s complement All of the above D
as complement form
form.