The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to______________?

A. lubricate the contacts

B. insulate the contacts from switch body

C. extinguish the arcCorrect Answer

D. all of the above

E. none of the above

Correct Option: C. extinguish the arc

This question has been verified by the PakPrep community moderation network for competitive examination accuracy.

Subject Overview

Explore thousands of solved past paper MCQs for Electrical Engineering Mcqs categorized with explanations.