Electrical Engineering MCQs

Page No. 53

The first order control system, which is well designed, has a_______________?


asmall bandwidth

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bnegative time constant

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clarge negative transfer function pole

✓


dnone of the above

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The transfer function technique is considered as inadequate under which of the following conditions ?


aSystems having complexities and non-linearities

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bSystems having stability problems

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cSystems having multiple input disturbances

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dAll of the above

✓


View Answer All of the above

Which of the following is an electromagnetically device ?


a Induction relay

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bThermocouple

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cLVDT

✓


done of the above

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View Answer LVDT

__________________can be extended to systems which are time-varying ?


aBode-Nyquist stability methods

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b Transfer functions

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cRoot locus design

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dState model representatives

✓



The effect of error damping is to______________?


aprovide larger settling lime

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bdelay the response

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c reduce steady state error

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dany of the above

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In pneumatic control systems the control valve used as final control element converts____________?


apressure signal to electric signal

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bpressure signal to position change

✓


celectric signal to pressure signal

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dposition change to pressure signal

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The phase lag produced by transportation relays_____________?


ais independent of frequency

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bis inverseh’proportional to frequency

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c increases linearly with frequency

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d decreases linearly with frequency

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Addition of zeros in transfer function causes which of the following ?


aLead-compensation

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bLag-compensation

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c Lead-lag compensation

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dNone of the above

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View Answer Lag-compensation

If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is_____________?


anot necessarily stable

✓


bstable

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c unstable

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d always unstable

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Velocity error constant of a system is measured when the input to the system is unit ___________ function?


a parabolic

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bramp

✓


c impulse

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d step

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View Answer ramp

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