Which one of the following is an example of open-loop system?

1.	Which one of the following is an example of open-loop system?
A.	A windscreen wiper
B.	Respiratory system of an animal
C.	A system for controlling anti-rocket missiles.
D.	None of these
Answer» B. Respiratory system of an animal

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Which one of the following is an example of open-loop system?

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