Test Index

NDA General Science Physics Questions Part 3

© examsnet.com

Question : 63

Total: 91

The connecting cable of electrical appliances like electric iron, water heater or room heater contains three insulated copper wires of three different colours—red, green and black. Which one of the following is the correct colour code?

Red—live wire, Green—neutral wire. Black—ground wire
Red—neutral wire. Green—ground wire, Black—live wire
Red—live wire. Green—ground wire, Black—neutral wire
Red—ground wire, Green—live wire. Black—neutral wire

Go to Question:

Prev Question

Next Question