A system has its two poles on the negative real axis and one pair of poles lies on jω axis. The system is
Answer: C
Poles on j x-axis lead to oscillations.
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In an integral controller
Answer: B
Output is proportional to integral of input or rate of change of output is proportional to input.
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Which of the following rotors are used in two phase ac servomotor?
1.Solid iron rotor
2.Squirrel cage rotor
3.Drag cup rotor
Of the above the correct ones are
Answer: C
Solid iron rotor would give rise to eddy currents.
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In Bode method of stability analysis, the error curve is not symmetric about corner frequency.
Answer: B
Error curve is symmetric.
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For a quadratic factor in transfer function the phase angle is not a function of damping factor.
Answer: B
Damping ratio affects phase angle.
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The entries in the first column of Routh array of a fourth order are 5, 2, - 0.1, 2, 1. The number of poles in the right half plane are
Answer: B
Two sign changes and hence two poles in right half plane.
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Assertion (A): In an automobile the amount of fuel admitted to the engine is adjusted as per the difference between desired and actual speed.
Reason (R): The control signal is the amount of fuel to be admitted to the engine.
Answer: B
No answer description available for this question.
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The effect of adding poles and zeros can be determined quickly by
Answer: C
No answer description available for this question.
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The magnitude of transport lag factor is always zero.
Answer: B
It is not always zero.
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Which of the following can act as error detecting devices
1.a pair of potentiometers
2.a pair of synchros
3.a differential transformer
4.a metadyne
5.a control transformer
Select the answer using the following codes:
Answer: A
No answer description available for this question.
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