Question

uri 27/11/2010
Assume suitable data if required and state the assumptiongo
MCQJObjective Type Questions
tion: 30 Minutes
Marks : 1
Chooseche correct answer :
(14x1=14
1) The fundamental period T of the continuous time signal jeklis
B) 0.2 a sec b ) 0,4 negec C) 0.3 10 sec d) 0.5 7 sec
A signal x (t) is said to be odd if
a) x(t) = *(-) b) Xti) = x (-) c) * (t) = - ?) d). -* (t) = x(+4)
3).If the signal x (t) = (1/2)^uft-2), then signal x(+3) is guaranteed to be zero for values of
a)=65151 B ) - 65143 : c).- 224 <-1. d) 2<1500
4) Fourier transform of unity is
a) 8 (w)
b) 2 18 (6) on (w)
Unit step signal
5) Two systems with impulse responses h, (1) and h, (t) are connected in cascade. Then
the overall impulse response of the cascaded system is given by is
a) proouchoin, (t) and h, (t)
b) sum of h, (t) and h, (128
c) conyokrtion of h, (t) and h(t) d) subtraction of he(1) fgem n. (1)
6) The Faurier transform of X(t) = 8 (1 * 2) is
a)
celeb ). tamc) 1
od) None of these
puta, 27/1/2018 01:07 PM WIT (SOS
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Answer 1

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