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Thread: HSC 2017 Electrotechnology Marathon

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    HSC 2017 Electrotechnology Marathon

    Decided to open another thread on the Electrotechnology subject for 2017.
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    Re: HSC 2017 Electrotechnology Marathon

    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
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    Re: HSC 2017 Electrotechnology Marathon

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

    Ohmmeter- measures electrical resistance.

    Wheatstone Bridge- measures electrical resistance by comparison method.
    Last edited by davidgoes4wce; 18 Feb 2017 at 12:26 AM.
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