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Home » GAT Subject » Aptitude Test - 29
Hassan
1. Which of the following is not a positional number system?
A. Roman Number System
B. Octal Number System
C. Binary Number System
D. Roman Number System
2. The binary equivalent of the decimal number 10 is:
A. 0010
B. 10
C. 1010
D. 0010
3.The octal equivalent of 1100101.001010 is:
A. 624.12
B. 154.12
C. 145.12
D. 624.12
4.The input hexadecimal representation of 1110 is:
A. 0111
B. 14
C. 15
D. 0111
5.Convert the binary equivalent 10101 to its decimal equivalent:
A. 21
B. 12
C. 22
D. 21
6.What could be the maximum value of a single digit in an octal number system?
A. 5
B. 6
C. 7
D. 5
7.Convert (22)8 into its corresponding decimal number:
A. 28
B. 18
C. 81
D. 28
8. The octal equivalent of the binary number (0010010100)2 is:
A. 422
B. 242
C. 226
D. 422
9.Octal subtraction of (232)8 from (417)8 will give:
A. 165
B. 185
C. 815
D. 165
10.The 1’s complement of 0.101 is:
A. 1.010
B. 0.010
C. 0.101
D. 1.010
11.Convert (5401)8 to hexadecimal:
A. A01
B. A02
C. B01
D. A01
12.Express the decimal format of the signed binary number (10010)2 .
A. 2
B. 12
C. -12
D. 2
13.What does the symbol D represent in a hexadecimal number system?
A. 8
B. 13
C. 14
D. 8
14.The maximum number of bits sufficient to represent a hexadecimal number in binary:
A. 4
B. 3
C. 7
D. 4
15.Convert (52)16 into its decimal equivalent:
A. 28
B. 83
C. 80
D. 28
16.The 2’s complement of 10.11 :
A. 10
B. 0.010
C. 01.01
D. 10
17.What does BCD stand for?
A. Bitwise coded decimal
B. Binary coded decimal
C. Binary converted decimal
D. Bitwise coded decimal
18.ASCII stands for:
A. American standard code for information interchange
B. American scientific code for information interchange
C. American scientific code for international interchange
D. American standard code for information interchange
19.Convert binary 111111110010 to hexadecimal:
A. EE216
B. FF216
C. 2FE16
D. EE216
20.A complete alphanumeric code would include 26 lowercase letters, 26 uppercase letters, 10 numeric digits, 7 punctuation marks, and anywhere from ________ to ________ other characters:
A. 5, 10
B. 10, 15
C. 10, 20
D. 5, 10
21.Hex 4B5258 is ________ in ASCII code.
A. FGM
B. KLM
C. KRX
D. FGM
22.The ________ code represents alphanumeric characters as seven-bit binary numbers:
A. ASCII
B. octal
C. alphanumeric
D. ASCII
23.Hexadecimal F2 is ________ in binary:
A. 11100011
B. 10100001
C. 11110010
D. 11100011
24.Binary 0010111101111110 is ________ in hexadecimal:
A. 77F216
B. 4EEE16
C. 2F7E16
D. 77F216
25.The decimal equivalent of the BCD number 1010 is:
A. 8
B. 10
C. 12
D. 8
26.The largest unsigned decimal number that can be represented in binary using six bits is:
A. 63
B. 64
C. 127
D. 63
27.Decimal 37 is ________ in binary with an even parity bit.
A. 00100101
B. 10100101
C. 11000100
D. 00100101
28.An unweighted code in which only one bit changes from one code number to the next is:
A. BCD
B. Excess-3
C. Gray
D. BCD
29.Resistors—usually 300 apiece—inserted between a decoder and a 7-segment display are:
A. pull-up resistors to keep logic HIGH when the input is open
B. sense resistors to enable a test of logic levels
C. current limiting resistors for the 7-segment display
D. pull-up resistors to keep logic HIGH when the input is open
30.Hexadecimal AA is ________ in decimal:
A. (165)10
B. (170)10
C. (186)10
D. (165)10
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