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HSC 2017 Electrotechnology Marathon (1 Viewer)

davidgoes4wce

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Q1 from 2016 HSC:

Which of the following is the best instrument to use when testing the insulation resistance
of an electrical cable?
(A) A megger
(B) An ohmmeter
(C) A Wheatstone Bridge
(D) A long shunt voltmeter
 

davidgoes4wce

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I know the megger is used to measure electrical leakage in wires.

Ohmmeter- measures electrical resistance.

Wheatstone Bridge- measures electrical resistance by comparison method.
 
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