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SSC JE / State Electricity Boards JE Electrical Exams QUIZ-10

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Question 1

In Fig., What is the generated e.m.f.?
Description: Description: E:\Gate\SSC-JE Electrical - Part 1\17_DC-Generators-final-2_files\image209.png

Question 2

The transformer that does not provide electric isolation is

Question 3

A generating station has an average demand of 15 MW. If the load factor is 60%, & its utilization factor is 80% then what is the reserve capacity of the plant?

Question 4

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

Question 5

Three 50-ohm resistors are connected in star across 400 V, 3-phase supply. If one of the resistors is disconnected, then, line current will be …………..

Question 6

An energy meter having a meter constant of 1200 rev. per kWh is found to make 5 revolutions in 75 seconds. The load power is

Question 7

When transistor is used as an amplifier, then,

Question 8

A solenoid has 2000 turns wound over a length of 0.3 m. The area of x-section is Description: Description: E:\Gate\SSC-JE Electrical - Part 1\9_Electromagnetic-Induction-final_files\image102.png. Around its central section, a coil of 300 turns is ‘Around. If an initial current of 2A is reversed in 0.25 sec, the e.m.f. induced in the coil is
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Jun 8ESE & GATE EE