What is / are the main disadvantage / s of using oil as the quenching medium in the circuit breakers?
A)Need periodical replacement.
B)Risk of formation of explosive mixture with air.
C)Possibility of causing fire hazards.
D)All of the above.

Question

Quizplus · Accepted Answer

Oil used in circuit breakers needs periodic replacement, can form explosive mixtures with air, and poses fire hazards, making all the listed options correct disadvantages.

What Is / Are the Main Disadvantage / S of Using