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EEE :: Electrical Control Systems

  1. In thermal-electrical analogy charge is considered analogous to

  2. A.

     heat flow

    B.

     reciprocal of heat flow

    C.

     reciprocal of temperature

    D.

     temperature

    E.

     none of the above


  3. An increase in gain, in most systems, leads to

  4. A.

     smaller damping ratio

    B.

     larger damping ratio

    C.

     constant damping ratio

    D.

     none of the above


  5. In case of type-1 system steady state acceleration is

  6. A.

     unity

    B.

     infinity

    C.

     zero

    D.

     10


  7. The transient response of a system is mainly due to

  8. A.

     inertia forces

    B.

     internal forces

    C.

     stored energy

    D.

     friction


  9. Which of the following is the best method for determining the stability and transient response ?

  10. A.

     Root locus

    B.

     Bode plot

    C.

     Nyquist plot

    D.

     None of the above


  11. A conditionally stable system exhibits poor stability at

  12. A.

     low frequencies

    B.

     reduced values of open loop gain

    C.

     increased values of open loop gain

    D.

     none of the above


  13. Is a part of the human temperature control system.

  14. A.

     Digestive system

    B.

     Perspiration system

    C.

     Ear

    D.

     Leg movement


  15. Which of the following is the non-linearity caused by servomotor ?

  16. A.

     Static friction

    B.

     Backlash

    C.

     Saturation

    D.

     None of the above


  17. The output of a feedback control system must be a function of

  18. A.

     reference and output

    B.

     reference and input

    C.

     input and feedback signal

    D.

     output and feedback signal


  19. Which of the following is the input to a controller ?

  20. A.

     Servo signal

    B.

     Desired variable value

    C.

     Error signal

    D.

     Sensed signal