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RSMSSB JE Quiz 10

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Question 1

Two circular coils are arranged in the following configurations,



 


In which of these, the mutual induction will be maximum

Question 2

For a 3-phase synchronous motor, if air gap is increased, then what will be its effect on voltage regulation?

Question 3

Which of the following is not a distance relay?

Question 4

Which of the following is not a limitation of Merz Price protection method.

Question 5

Which of the following is the n-type doping element?

Question 6

The equivalent inductance of the following circuit will be:

where, L1 = 2H, L2 = 3H, L3 = 4H

M12 = 1H, M23 = 1.5H, M13 = 2H

Question 7

The current through an element is given in the below graph. Find the value of change transferred in time, interval, (t = 0 to t = 4 sec).


Question 8

If the length of the arc in a circuit breaker increases, its resistance

Question 9

A 50 Hz, 11 kV, 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase and is connected to a busbar through a circuit breaker. The distributed capacitance up to circuit breaker between phase and neutral is 0.01 µF. The peak re-striking voltage across the contact of the breaker is

Question 10

The power developed by a synchronous motor will be maximum when the load angle ¡s ___________.
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