Signal and Systems

This is an MCQ-based quiz on Signal and Systems.

This includes Replication, Sampling, Scaling, and Product.

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An impulse response of the system at initially rest condition is basically a response to its input & hence also regarded as,

Black’s function Red’s function Green’s function None of the above

Which theorem states that the total average power of a periodic signal is equal to the sum of average powers of the individual fourier coefficients?

Parseval’s Theorem Rayleigh’s Theorem Both a & b None of the above

According to Rayleigh’s theorem, it becomes possible to determine the energy of a signal by________

Estimating the area under the square root of its amplitude spectrum Estimating the area under the square of its amplitude spectrum Estimating the area under the one-fourth power of its amplitude spectrum Estimating the area exactly half as that of its amplitude spectrum

What does the spectral density function of any signal specify?

Distribution of energy or power Consumption of energy or power Conservation of energy or power Generation of energy or power

Which among the below mentioned transform pairs is/are formed between the auto-correlation function and the energy spectral density, in accordance to the property of Energy Spectral Density (ESD)?

Laplace Transform Z-Transform Fourier Transform All of the above

Unilateral Laplace Transform is applicable for the determination of linear constant coefficient differential equations with ________

Zero initial condition Non-zero initial condition Zero final condition Non-zero final condition

What should be location of poles corresponding to ROC for bilateral Inverse Laplace Transform especially for determining the nature of time domain signal?

On L.H.S of ROC On R.H.S of ROC On both sides of ROC None of the above

Generally, the convolution process associated with the Laplace Transform in time domain results into________

Simple multiplication in complex frequency domain Simple division in complex frequency domain Simple multiplication in complex time domain Simple division in complex time domain

The ESD of a real valued energy signal is always _________

An even (symmetric) function of frequency An odd (non-symmetric) function of frequency A function that is odd and half-wave symmetric None of the above

What are the tools used in a graphical method of finding convolution of discrete time signals?

Plotting, shifting, folding, multiplication, and addition in order Scaling, shifting, multiplication, and addition in order Scaling, multiplication and addition in order Scaling, plotting, shifting, multiplication and addition in order

What would happen if the two events are statistically independent?

Conditional probability becomes less than the elementary probability Conditional probability becomes more than the elementary probability Conditional probability becomes equal to the elementary probability Conditional as well as elementary probabilities will exhibit no change

Choose the properties which are very important in case of LTI signals and systems?

Linearity and time invariance Linearity and stability Stability and invariance Linearity and causality

Convolution is considered in case of ________

Discrete time systems only Continuous time only In both continuous time and discrete time Superposition of various outputs

Quiz/Test Summary

Title: Signal and Systems

Questions: 13

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