WBUT 2013 Semester Question Paper for SIGNAL & SYSTEM. This Paper is currently included in the syllabus of ELECTRONICS AND COMMUNICATION ENGINEERING(ECE) branches in third sem(2nd year-First sem).
CS/B.Tech/(ECE-New)/SEM-3/EC-303/2013-2014
2013
SIGNAL & SYSTEM
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 Question)
1. Choose the correct alternatives for any ten of the following:
10 x 1 = 10
i) Laplace Transform of is
a)1/(s+a) b) 1/(s-a)
b) a/(s+a) d ) a/(s-a)
ii) x(t)=asinwt is an
a)odd signal b)even signal
c)both (a) and (b) d)either (a) or (b).
iii)The signal x(n)= 1+ej4*pi*n/7 - ej2*pi*n/5 is periodic with period of
a) 5/7 b)7/5
c) 4/7 d )4/5
iv) The system define as y(n)=2x(n)+3x( n2) is
a)static , causal b)dynamic ,causal
c)static ,non-causal d)dynamic ,non-causal
v) ROC of unit step function is
a) |z|<1 b) |z|>1
c) |z|=1 d)none of these
vi) The discrete time system defined as
H(z)=(z3-3z2+2z)/(z2+z/2-1/4) is
a)causal
b) non-causal
c)none of these
for full question download attchment file.
