1000+ Control System Multiple Choice Questions and Answers PDf - 1
Question: 1
When the gain margin is positive and the phase margin is negative, the system is
(A) stable
(B) unstable
(C) probalistic
(D) underterministic
Ans: B
unstable
Question: 2
A servomechanism usually consist of
(A) power amplifier
(B) error actuated signal
(C) mechanical output
(D) all of the above
Ans: D
all of the above
Question: 3
_____ will increase the steady state accuracy?
(A) Phase lead compensator
(B) Phase lag compensator
(C) Differentiator
(D) Integrator
Ans: D
Integrator
Question: 4
A pneumatic amplifier
(A) amplifies change in air volume
(B) amplifies differential pressure
(C) amplifies flow
(D) any of the above
Ans: B
amplifies differential pressure
Question: 5
The temperature under thermal and electrical system analogy, is considered analogous to
(A) current
(B) capacitance
(C) charge
(D) voltage
Ans: D
voltage
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