A ___ switch is employed to monitor the position of a liquid according to the depth of the containing vessel, whereas a ___ switch is employed to sense the flow of a fluid in a pipe or conduit or an open channel

A __________ switch is employed to monitor the position of a liquid according to the depth of the containing vessel, whereas a __________ switch is employed to sense the flow of a fluid in a pipe or conduit or an open channel.

A) float; flow
B) flow; float
C) sail; pressure
D) limit; sail

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Answer:A

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