CS/B.TECH (EEE/ICE/PWE) (OLD)/SEM-4/EC-402/2013
2013
DIGITAL ELECTRONICS AND INTEGRATED CIRCUITS
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following : 10 × 1 = 10
i) The binary equivalent number of (25 ⋅ 75 )10 is
a) 11001·110 b) 11001·011
c) 11001·111 d) 11001·000.
ii) The hexadecimal equivalent number of 10 (348 ⋅ 35 ) is
a) 15C·668 b) 15C·599
c) 15B·599 d) 15A·599.
iii) The decimal equivalent number of (1101⋅11) 2 is
a) 13·25 b) 13·75
c) 13·5 d) 13·00.
iv) The decimal equivalent number of ( 427 ⋅ 35 ) 8 is
a) 279·456732 b) 279·4567789
c) 279·432167 d) 279·453125.
v) The decimal equivalent number of 16 (6ABC⋅ 2A ) is
a) 27324·125 b) 27325·678
c) 27324·164 d) 27324·654.
vi) The binary equivalent number of (155 ⋅52)8 is
a) 001101101·101010 b) 001101101·101101
c) 001101101·110000 d) 001101101·110011.