ISRO Scientist or Engineer Electrical 2013

Instructions

For the following questions answer them individually

Question 41

The voltage stress will be maximum in an underground cable at

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Question 42

The dielectric strength of air at a barometric pressure of 76cm and 25 degree centigrade is

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Question 43

The positive sequence current of a transmission line is

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Question 44

For the fault at the terminals of a synchronous generator, the fault current is maximum for a

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Question 45

The earth transformer is used to

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Question 46

For differential protection of power transformer (delta-delta) the current transformers will have

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Question 47

For the protection of a very long extra high voltage line, the protective relay used is

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Question 48

Resistance switching is normally employed in

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Question 49

Symmetrical breaking capacity of ACB is

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Question 50

By which material the fuse element is generally made

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