Exercise: Automatic Control Systems

Questions for: Automatic Control Systems

Given figure shows a magnitude Bode plot. The transfer function for this plot is
A:
B:
C:
D:
Answer: C
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A reactance function
A:
has a pole at origin
B:
has a zero at origin
C:
may have a pole or zero at origin
D:
has a pole or zero at origin and a pole or zero at infinity
Answer: D
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An RLC series circuit has

If poles p1 and p1* are close to jω axis, then
A:
resonant frequency is high
B:
Q is high
C:
bandwidth is large
D:
Q is low
Answer: C
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In a proportional plus integral control action
A:
proportional gain Kp is adjustable but integral time Ti is constant
B:
proportional gain Kp is adjustable but integral time Ti is adjustable
C:
both proportional gain Kp and integral time Ti are adjustable
D:
both proportional gain Kp and integral time Ti are constant
Answer: C
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The transfer function G(s) of a PID controller is
A:
B:
K [1 + Tts + Tds]
C:
D:
Answer: A
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