Engine : Electricity - 377/1386 |
---|
« Previous Question |
What should be done when performing maintenance of circuit breaker contacts? |
A) smooth roughened contact surfaces with a file |
B) apply a thin film of oil on contact surfaces |
C) use a metallic oxide abrasive cloth to dress contacts |
D) inspect for wear and misalignment of main contacts |
loading answer...
Comments |
---|
There are no comments for this question. |