In order for a live-line tester to be used to test and prove dead a high voltage circuit, what must be done to verify the ability of the tester to detect a voltage?

Correct Answer: Option C — The live-line tester should be checked by connecting to a known high voltage source before and after the circuit to be worked upon is tested.

Under USCG National Maritime Center examination standards, the accepted correct answer is: The live-line tester should be checked by connecting to a known high voltage source before and after the circuit to be worked upon is tested..