railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrician and Wireman Electrical Wiring Domestic and Industrial Wiring
Which colour code is correct for domestic wiring?
1
Live wire is red, neutral wire is green and earthing wire is blue.
2
Live wire is red, neutral wire is black and earthing wire is green.
3
Live wire is red, neutral wire is green and earthing wire is black.
4
Live wire is red, neutral wire is black and earthing wire is blue.