Question

1. Which of the following safety measures prevents an electric shock?
A) Touching the switch of a heater with wet hands.
B) Standing on a wooden stool to check a plug point.
C) Poking a metal rod into an electrical socket.
D) Touching the water in which the immersion heater is kept.​

Answer 1

Answer:

B) Standing on a wooden stool to check a plug point.

Explanation:

As wood is not a conductor of electricity and is an insulator.

Answer 2

Explanation:

The answer is (b)

Standing on a wooden stool to check a plug point.