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Control Systems

Control Systems
Differentiation of parabolic response is a -------------- response?

 step
 impulse
 parabolic
 ramp

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Control Systems
Advantages of open loop control system is/are

 accurate.
 simple and economical.
 reliable.
All of these

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Control Systems
Which of the following is the correct expression for the transfer function of an electrical RC phase lag compensating network?

 RCS/(1+RCS)
 1/(1+RCS)
 RC/(1+RCS)
 C/(1+RCS)

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Control Systems
The phase margin of a system having the loop transfer function G(s)H(s) = 2√3/s(s+1) is

 45°
 80°
 30°
 60°

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Control Systems
Transfer function of zero order hold response is

 (1 / s) × e-st.
 (s) × (1 - est).
 (1 / s) × (1 - e-st).
 (1 / s) × (1 - est).

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Control Systems
At which frequency does the Bode magnitude plots for the functions K/S2 have gain crossover frequency

 ω = 0 rad/sec.
 ω = K2 rad/sec.
 ω = K rad/sec.
 ω = √K rad/sec.

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