Electrical control systems

22. Which of the following statements is correct for any closed loop system ?

All the co-efficients can have zero value
All the co-efficients are always non-zero
Only one of the static error co-efficients has a finite non-zero value
None of the above

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?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-statements-is-correct-for-any-closed-loop-system/#more-55228">Detailed SolutionWhich of the following statements is correct for any closed loop system ?

23. Which of the following should be done to make an unstable system stable ?

The gain of the system should be decreased
The gain of the system should be increased
The number of zeros to the loop transfer function should be increased

Detailed SolutionWhich of the following should be done to make an unstable system stable ?

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

Systems having complexities and non-linearities
Systems having stability problems
Systems having multiple input disturbances
All of the above

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transfer function technique is considered as inadequate under which of
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the following conditions ?" class="read-more button" href="https://exam.pscnotes.com/mcq/the-transfer-function-technique-is-considered-as-inadequate-under-which-of-the-following-conditions/#more-54122">Detailed SolutionThe transfer function technique is considered as inadequate under which of the following conditions ?

25. A phase lag lead network introduces in the output

lag at all frequencies
lag at high frequencies and lead at low frequencies
lag at low frequencies and lead at high frequencies
none of the above

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the output" class="read-more button" href="https://exam.pscnotes.com/mcq/a-phase-lag-lead-network-introduces-in-the-output/#more-54096">Detailed SolutionA phase lag lead network introduces in the output

26. In a system zero initial condition means that

The system is at rest and no energy is stored in any of its components
The system is working with zero stored energy
The system is working with zero reference signal
None of the above

Detailed SolutionIn a system zero initial condition means that

27. An amplidyne can give which of the following characteristics ?

Constant current
Constant voltage
Constant current as well as constant voltage
Constant current, constant voltage and constant power E. None of the above

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href="https://www.youtube.com/channel/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1" target="_blank" class="youtube-subscribe-button"> Subscribe on YouTube amplidyne can give which of the following characteristics ?" class="read-more button" href="https://exam.pscnotes.com/mcq/an-amplidyne-can-give-which-of-the-following-characteristics/#more-53850">Detailed SolutionAn amplidyne can give which of the following characteristics ?

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

Lead-compensation
Lag-compensation
Lead-lag compensation
None of the above

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class="read-more button" href="https://exam.pscnotes.com/mcq/addition-of-zeros-in-transfer-function-causes-which-of-the-following/#more-53793">Detailed SolutionAddition of zeros in transfer function causes which of the following?

29. Pressure error can be measured by which of the following ?

Differential bellows and straingauge
Selsyn
Strain gauge
Strain gauge and potentiometer

Detailed SolutionPressure

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error can be measured by which of the following ?

30. In a control system integral error compensation _______ steady state error

increases
minimizes
does not have any effect on
any of the above

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steady state error" class="read-more button" href="https://exam.pscnotes.com/mcq/in-a-control-system-integral-error-compensation-_______-steady-state-error/#more-53758">Detailed SolutionIn a control system integral error compensation _______ steady state error
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