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 Total number of questions : 20.
 Time alloted : 30 minutes.
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1.  Consider Pole zero diagram as shown, If two Poles are moved in opposite direction towards ω = p/2 and p/2, the filter will be 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation:
But still we will get the same response, zero are at same position. Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
2.  The continuous time system with impulse response h(t) = is stable, for n is even, when 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation:
For stable system exponential must be ve so that a < 0. Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
3.  A function having frequency f is to be sampled. The sampling time T should be 

Your Answer: Option (Not Answered) Correct Answer: Option C Explanation: Sampling frequency must be more than 2f. Therefore . Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
4.  Inverse Laplace transform of is 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation:
f(t) = e^{2t} + e^{3t}. Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
5.  Pick the odd one 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Because Variance, standard Deviation, Expectation are related to each other. Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
6.  If the poles of H(z) are at 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: . Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
7.  A linear system is characterized by H(ω) = Be^{2ω2} the system is physically 

Your Answer: Option (Not Answered) Correct Answer: Option A Explanation: Exponential function cannot be linear. Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
8.  ROC of sequence x[n] = (3)^{n} ∪[n] + (4)^{n} ∪[ n  1] 

Your Answer: Option (Not Answered) Correct Answer: Option B Explanation: x[n] = (3)^{n} ∪(n) + (4)n ∪( n  1) Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
9.  The eigen values of matrix are 

Your Answer: Option (Not Answered) Correct Answer: Option D Explanation: Eigen values of matrix A are roots of characteristic equation. [λ1 A] = 0 where λ is a scalar. Therefore
(λ + 1)(λ  1) = 0. The roots are  1 and + 1. Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
10.  If f_{1}(t)<< F_{1}(jω) and f_{2}(t)↔ F_{2}(jω), then [a_{1} f_{1}(t) + a_{2}f_{2}(t)]↔ 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
11.  Consider the following sets of values of E, R and C for the circuit in the given figure.


Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
12.  Assertion (A): The conditions under which it is possible to write Fourier series of a periodic function are called Drichlet conditions. Reason (R): If f(t) =  f( t), it is refereed to as odd symmetry. 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
13.  Which one of the following rules determines the mapping of splane to zplane? 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
14.  Half wave sysmmetry means f(t) =  f(t ± T/2). 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
15.  The ztransform of sequence x[n] = δ(n) is 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
16.  If x^{k} = 2^{k} for k ≤ 0 and x_{k} = 0 for k ≥ 0, Z transform of the sequence x is 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
17.  If f(t) is an odd function 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
18.  If x^{k} = a^{k} and k ≥ 0 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
19.  The function sinc x is equal to 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 
20.  The following table gives some time functions and the Laplace transforms 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Signals and Systems Discuss about this problem : Discuss in Forum 