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Electrical Engineering Mcqs — Test 66

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Question 1
Resistance grounding is used for voltage between_________________?
Question 2
Wave trap is used to trap waves of__________________?
Question 3
For the protection of power station buildings against direct strokes the requirements are___________?
Question 4
The time of closing the cycle, in modern circuit breakers is_____________?
Question 5
The delay fuses are used for the protection of ___________?
Question 6
Insulation resistance of high voltage circuit breakers is more than________________?
Question 7
Which of the following is the least expensive protection for overcurrent is low voltage system ?
Question 8
To protect most of the electrical equipment handling low power, the types of relays used are______________?
Question 9
H.R.C. fuses provide best protection against________________?
Question 10
The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to______________?