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Control Systems

Control Systems
The unit step error coefficient of a system with unity feedback is

 1.
 infinity.
 0.
 1/6.

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Control Systems
Find the bandwidth of the system, when rise time of the system is give as 1msec?

 750 Hz
 500 Hz
 350 Hz
 1 kHz

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Control Systems
A property of phase lead compensation is that the

 gain margin is reduced.
 rise time of closed loop system is reduced.
 bandwidth of closed loop system is reduced.
 overshoot is increased.

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Control Systems
Electrical analogous quantity for spring element (K) in force-voltage analogy is

 1/C
 C
 R
 L

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Control Systems
Resonant peak of a marginally stable system is

 finite value
 infinite
 0
 any of the above

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Control Systems
A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is

 90°
 -180°
 -90°
 180°

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