Wiring Installation and Earthing MCQ with Answers

3 Sq.mm

3.5 Sq.mm

2.5 Sq.mm

1.5 Sq.mm

Increasing the length of electrode

Keeping wet condition in earth pits always

Adding more sand and charcoal in earth pits

Increasing the diameter of earth electrode

Regulate the current

Increase the voltage drop

Decrease the voltage drop

Avoid electrolytic emf interference

Voltage drop = IR volt

Voltage drop = I

Voltage drop = I/R volt

Voltage drop=IR/2 volt