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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

  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

  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

  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

  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

  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

  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

  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

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

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