CONTROL PANEL WIRING AND MAINTENANCE - Practice Mode

1) Which type of fault will occur if the insulation of cable is damaged?

Earth fault Open circuit Short circuit High value series resistance fault

Correct Answer: Earth fault

2) Which is the purpose of third terminal in insulation tester?

To measure more quantity To extend the range To use as a earth tester To get accurate reading

Correct Answer: To get accurate reading

3) What is the name of instrument used to find out open circuit fault in control panel?

Earth tester Ohm meter Megger Wheatstone bridge

Correct Answer: Megger

4) Why it is recommended to run power and control circuit cables seperatly in control panel?

For easy Identification To Avoid transfer of heat from power cable to control cable To avoid leakage To avoid short circuit

Correct Answer: To Avoid transfer of heat from power cable to control cable

5) What is the name of fault if line is break in power cable?

Open circuit Short circuit Earth fault Earth leakage

Correct Answer: Open circuit

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