SIGNAL SYSTEM MCQS SET O8

SIGNAL SYSTEM MCQS SET O8

1. Unilateral Laplace Transform is applicable for the determination of linear constant
coefficient differential equations with ________
1) Zero initial condition
2) Non-zero initial condition
3) Zero final condition
4) Non-zero final condition
5) None of these
Answer:  2) Non-zero initial condition

differential equations with Non-zero initial condition
2. Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the
shape of the resulting waveform?
1) Triangular
2) Trapezoidal
3) Rectangular
4) Semi-circular
5) circular
Answer:  2) Trapezoidal

3. What is the nature of Fourier representation of a discrete & aperiodic signal?
1) Continuous & periodic
2) Discrete and aperiodic
3) Continuous & aperiodic
4) Discrete & periodic
5) None of these
Answer:  1) Continuous & periodic

4. Which property of periodic signal in DTFS gets completely clarified / identified by the
equation x (n - n0 )?
1) Conjugation
2) Time Reversal
3) Frequency Shifting
4) Time Shifting
5) None of these
Answer:  4) Time Shifting

5. Duality Theorem / Property of Fourier Transform states that _________
1) Shape of signal in time domain & shape of spectrum can be interchangeable
2) Shape of signal in frequency domain & shape of spectrum can be interchangeable
3) Shape of signal in time domain & shape of spectrum can never be interchangeable
4) Shape of signal in time domain & shape of spectrum can never be interchangeable
5) None of these
Answer:  1) Shape of signal in time domain & shape of spectrum can be interchangeable

6. Which property of fourier transform gives rise to an additional phase shift of -2π ftd for the generated time delay in the communication system without affecting an amplitude spectrum ?
1) Time Scaling
2) Linearity
3) Time Shifting
4) Duality
5) None of these
Answer:  3) Time Shifting

7. Which among the following operations is/are not involved /associated with the computation process of linear convolution?
1) Folding Operation
2) Shifting Operation
3) Multiplication Operation
4) Integration Operation
5) None of these
Answer:  4) Integration Operation

8. Which type of system response to its input represents the zero value of its initial condition?
1) Zero state response
2) Zero input response
3) Total response
4) Natural response
5) None of these
Answer:  1) Zero state response

9. Which among the following belongs to the category of non-recursive systems?
1) Non-causal IIR Systems
2) Causal IIR Systems
3) Non-causal FIR Systems
4) Causal FIR Systems
5) None of these
Answer:  4) Causal FIR Systems

10. Damped sinusoids are _____
1) sinusoid signals multiplied by growing exponentials
2) sinusoid signals divided by growing exponentials
3) sinusoid signals multiplied by decaying exponentials
4) sinusoid signals divided by decaying exponentials
5) None of these
Answer:  3) sinusoid signals multiplied by decaying exponentials