A float switch is used when a pump motor must be started and stopped according to changes in the _____in a tank or sump.
A)mercury level
B)Bourdon
C)water pressure
D)liquid level

Question

Quizplus · Accepted Answer

A float switch is used to detect changes in liquid level in a tank or sump and to turn on/off a pump motor accordingly. It is not used for mercury level, Bourdon, or water pressure detection. A float switch is used to detect changes in the liquid level in a tank or sump, which then triggers the pump motor to start or stop accordingly.

A Float Switch Is Used When a Pump Motor Must