Insulation Resistance

Front

What does an insulation resistance test measure?

Back

The resistance between live conductors and earth

Front

Minimum acceptable insulation resistance for a domestic circuit under normal conditions? Options: 0.5 MΩ, 1.0 MΩ, 2.0 MΩ, 5.0 MΩ

Back

1.0 MΩ

Front

What is the typical test voltage for an insulation resistance test on a 230V domestic circuit? Options: 100V, 250V, 500V, 1000V

Back

500V

Front

Instrument commonly used for insulation resistance test? Options: Multimeter, Megger, Ammeter, Voltmeter

Back

Megger

Front

Why is it important to isolate the circuit before performing an insulation resistance test?

Back

All of the above

Front

What is the main purpose of an insulation resistance test?

Back

To verify the integrity of insulation

Front

During an insulation resistance test, what should you do if the reading is below the acceptable limit?

Back

Repair or replace the faulty section

Front

Insulation resistance testing is performed between which points?

Back

All of the above

Front

What is the primary danger of poor insulation in electrical circuits?

Back

Electric shock and fire hazards

Front

How should the test leads be connected during an insulation resistance test?

Back

Across the insulation being tested