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Contact : Ajay Gahlot 7733052211, 9672502497 Important Diploma Electrical DIGITAL Questions 4

Q:1 What is the binary equivalent of the decimal number 368

(A) 101110000 (B) 110110000

(C) 111010000 (D) 111100000 Ans:A

Q:2 The decimal equivalent of hexa number 1A53 is

(A) 6793 (B) 6739

(C) 6973 (D) 6379 Ans:B

Q:3 ( 736)8= ( ? )16

(A) C 1 D (B) D C 1

(C) 1 C D (D) 1 D C Ans:D

Q:4 The hexadecimal number ‘A0’ has the decimal value equivalent to

(A) 80 (B) 256

(C) 100 (D)160 Ans:D

Q:5 The hexadecimal number for (95.5)10 is

(A) (5F.8)16 (B) (9A.B)16

(C) (2E.F)16 (D) (5A.4) 16 Ans:A

Q:6 The octal equivalent of ( )247 10 is

(A) (252)8 (B) (350)8

(C) (367)8 (D) (400)8 Ans:C

Q:7 The number 140 in octal is equivalent to

(A) (96)10 (B) (86)10

(C) (90)10 (D) none of these Ans:A

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Q:8 Convert decimal 153 to octal. Equivalent in octal will be

(A) (231)8 (B) (331)8

(C) (431)8 (D) none of these Ans:A

Q:9 The decimal equivalent of ( )1100 2 is

(A) 12 (B) 16

(C) 18 (D) 20 Ans: A

Q.10 The binary equivalent of (FA)16 is

(A) 1010 1111 (B) 1111 1010

(C) 10110011 (D) none of these Ans:B

Q:11 The result of adding hexadecimal number A6 and 3A is

(A) DD (B) E0

(C) F0 (D) EF Ans:B

Q:12 The decimal equivalent of Binary number 10101 is

(A) 21 (B) 31

(C) 26 (D) 28 Ans:A

Q:13 Convert the octal number 7401 to Binary? Ans: 111100000001

Q:14 Find the hex sum of (93)16 + (DE)16 Ans:(171)16

Q:15 Determine the binary numbers represented by the following decimal numbers.

(i) 25.5 (ii) 10.625 (iiii) 0.6875

Ans: (i) 11001.1 (ii) 1010.101 (iii) 0.1011

Q:16 Convert the decimal number 82.67 to its binary, hexadecimal and octal equivalents

Ans. (i) (1010010)2 (ii) (52.AB)16 (iii) (122.526)8

Q:17 Convert 2222 in Hexadecimal number

Ans: 8AE

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Q:18 Perform following subtraction

(i) 11001-10110 (ii) 11011-11001