Questions for Junior Instrument Technician Exam

2018-05-21View Original

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Can a test pen distinguish between 220VAC and 24VDC?

Reply #22018-05-30

It’s a multiple-choice question; the answer says it’s possible, but I don’t know how to determine that

Reply #32018-05-31

If you give me two power sources and clearly tell me that one is 220VAC and the other is 24VDC, so that I can use a regular voltage tester to distinguish between them, that’s fine. But if it’s just for simple measurement, then it won’t work.

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Questions for Junior Instrument Technician Exam

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