+1 vote
in Machine Dynamics by (34.3k points)
For open control system which of the following statements is incorrect ?

(a) Less expensive

(b) Recalibration is not required for maintaining the required quality of the output

(c) Construction is simple and maintenance easy

(d) Errors are caused by disturbances

This question was posed to me in semester exam.

This interesting question is from Open-Loop Transfer Function in division Automatic Control of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
The correct option is (b) Recalibration is not required for maintaining the required quality of the output

For explanation: Most measuring instruments are open-loop control systems, as for the same input signal, the readings will depend upon things like ambient temperature and pressure.

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