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Control Systems

Control Systems
The amplitude spectrum of a Gaussian pulse is

 Impulse function.
 A sine function.
 Uniform.
 Gaussian.

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Control Systems
If the transfer function of a phase lead compensator is (s+a)/(s+b) and that of a lag compensator is (s+p)/(s+q), then which one of the following sets of conditions must be satisfied?

 a > b, p > q
 a > b, p < q
 a < b, p < q
 a < b, p >q

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Control Systems
A proportional plus integral controller

 it increases rise time
 increases the stability of the system
 has high sensitivity
 both 2 and 3

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Control Systems
What is the type of closed loop system for the plant transfer function G(s) = k/s²(1+Ts) and with unity feedback?

 2
 1
 0
 3

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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
For a lead compensator, the poles lie:

  on LHS before zero.
  on LHS.
  on origin.
  on RHS.

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