Two technicians are discussing testing switch type sensors. Technician A uses an ohmmeter. Technician B uses a voltmeter. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Both technicians are correct because an ohmmeter can be used to check for continuity in a switch type sensor when it is off or disconnected from the circuit, and a voltmeter can be used to check for voltage presence or absence when the switch is in operation, indicating whether the switch is functioning correctly within a live circuit.

Two Technicians Are Discussing Testing Switch Type Sensors