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JE 2019 || Day 30 || Estimation & Costing Quiz 3

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Question 1

Supplier’s fuse, which is provided in domestic wiring system is

Question 2

To prevent the decaying owing to snow and rain, the wooden poles are protected by _________ cap at the top.
A) Aluminium
B) Zinc
C) Cement

Question 3

Which among these is a method of wiring?
A) Joint box
B) Tee system
C) Loop in system

Question 4

What is the factor of safety used for current ratings in a power installation?

Question 5

What type of earthing is used by transmission lines?

Question 6

Balanced earth-fault protection is generally provided for

Question 7

The ground wires are placed………………..the line conductors.

Question 8

For the proper protection of power system, the operating time of a relay should be

Question 9

Overheating of a transformer may be due to

Question 10

The arc voltage in a circuit breaker

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Feb 17ESE & GATE EE