Two Technicians Are Discussing Testing Switch Type Sensors

question 20

Multiple Choice

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

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Definitions:

TON Timer

In PLC programming, it stands for "Timer On Delay", which starts timing when the input condition becomes true and triggers an output after a set time period has elapsed.

Accumulated Time

The total amount of time collected or summed up over a period, often used in scheduling or process control scenarios.

Retentive Timer

A type of timer that keeps track of the accumulated time across power cycles or resets.