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ECE :: Signals and Systems

  1. _________ is defined as any physical quantity that varies with time, space or any other independent variable
  2. A.
    Signal
    B.
    system
    C.
    signals & system
    D.
    none of the above

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  3. A signal is a power signal when the signal has
  4. A.
    Infinite average power
    B.
    finite average power
    C.
    Zero average power
    D.
    None Of The Above

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  5. Which of the following time system operates with a continuous time signal & produces a continuous time output signal
  6. A.
    Continuous time system
    B.
    Discrete time system
    C.
    Time invariant system
    D.
    Time variant system

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  7. The function which relates output of a system to the input(signal) of a system is
  8. A.
    Periodic function
    B.
    Non-periodic function
    C.
    Transfer function
    D.
    None of the above

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  9. A signal is an energy signal when the signal has
  10. A.
    Infinite energy
    B.
    Finite energy
    C.
    zero energy
    D.
    None of the above

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  11. A system is said to be dynamic if the output of the system depends on the
  12. A.
    Past Input
    B.
    Future Input
    C.
    Present Input
    D.
    Present & Future Inputs

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  13. A system is said to be stable if the bounded input to the system produces
  14. A.
    Bounded output
    B.
    Non bounded output
    C.
    Inbound output
    D.
    Outbound output

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  15. A system is said to be casual if the output of the system depends on the
  16. A.
    Past & Present Inputs
    B.
    Present Input
    C.
    Future Input
    D.
    Past & Future Inputs

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  17. Frequency and Time period are ______
  18. A.
    Proportional to each other
    B.
    Inverse of each other
    C.
    Same
    D.
    None of the above

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  19. Which of the following can weaken a signal
  20. A.
    Attenuation
    B.
    Distortion
    C.
    Noise
    D.
    All of the above

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