HSC 2017 Electrotechnology Marathon (1 Viewer)

[davidgoes4wce]

Decided to open another thread on the Electrotechnology subject for 2017.

 

[davidgoes4wce]

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]

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

Ohmmeter- measures electrical resistance.

Wheatstone Bridge- measures electrical resistance by comparison method.