Question

8. Equipment earthing is provided for-
(a) safety or operating persons
(c) reduction of maintenance cost
(b) safety of equipments
(d) all of these​

Answer 1

Answer:

Earthing is used to protect you from an electric shock.

So,I think the answer is (d)

Answer 2

The correct answer is (d) all of these​.

• The earthing shields the labor force from the short-out current. The earthing gives the most un-requesting way to the movement of short out current even after the failure of the insurance.
• The earthing shields the contraption and labor force from the high voltage floods and lightning release.
• Earthing is used to protect you from an electric shock. It does this by parting with (a cautious aide) for a deficiency current to stream to earth. It also causes the guarded contraption (either an electrical switch or breaker) to switch off the electric flow to the circuit that has the issue.
• It is to give a satisfactorily low impedance way and means to convey and scatter electric flows into the ground under conventional and issue conditions without outperforming any working and equipment limits or unfairly impacting soundness of the organization.