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Quiz: Signals & Systems Set-1

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Number of Questions: 40

Question: 1 -

Damped sinusoids are _____

Options:

  1. sinusoid signals divided by growing exponentials

  2. sinusoid signals multiplied by growing exponentials

  3. sinusoid signals multiplied by decaying exponentials

  4. sinusoid signals divided by decaying exponentials

    5. Answer:

    sinusoid signals multiplied by decaying exponentials
    Solution not available.

Question: 2 -

Which among the below specified conditions/cases of discrete time in terms of real constant 'a', represents the double-sided decaying exponential signal?

Options:

  1. a < -1

  2. 0 < a < 1

  3. a > 1

  4. -1 < a < 0

    5. Answer:

    -1 < a < 0
    Solution not available.

Question: 3 -

Which property of delta function indicates the equality between the area under the product of function with shifted impulse and the value of function located at unit impulse instant?

Options:

  1. Product

  2. Sampling

  3. Scaling

  4. Replication

    5. Answer:

    Sampling
    Solution not available.

Question: 4 -

Which mathematical notation specifies the condition of periodicity for a continuous time signal?

Options:

  1. None of the above

  2. x(t) = e-αt

  3. x(t) = x(t +T0)

  4. x(n) = x(n+ N)

    5. Answer:

    x(t) = x(t +T0)
    Solution not available.

Question: 5 -

An amplitude of sinc function that passes through zero at multiple values of an independent variable 'x' ______

Options:

  1. Decreases with an increase in the magnitude of an independent variable (x)

  2. Always remains constant irrespective of variation in magnitude of 'x'

  3. Increases with an increase in the magnitude of an independent variable (x)

  4. Cannot be defined

    5. Answer:

    Decreases with an increase in the magnitude of an independent variable (x)
    Solution not available.