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Control Systems

Control Systems
The optimum values of damping ratio is --------------

 0.3 to 0.7
 0.3 to 5
 0 to 2
 0.9 to 1.1

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Control Systems
If the bandwidth of the system is very large, the system response is

 independent of bandwidth
 faster
 slower
None of these

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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

 180°
 90°
 -90°
 -180°

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Control Systems
If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system?

 1
 2
 4
 0.5

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Control Systems
Advantages of open loop control system is/are

 simple and economical.
All of these
 accurate.
 reliable.

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Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?

 0
 4
 2
 1

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