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SSC JE 2019-20 Technical Quiz 55

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Question 1

Centrifugal Methods of reconditioning transformer oil is effective for removal of ___________.

Question 2

Determine the current (in A) through a 60 cm long solenoid when the solenoid has 400 turns and the value of magnetic field at the centre of the solenoid is 6 mT.

Question 3

Which of the following is the most commonly used measurement unit for a typical 1-phase energy meter?

Question 4

What will be the permeance (in H) of a coil, when the flux through the coil is 50 Wb and the value of produced mmf is 25 Amp-turns?

Question 5

The lamp shown in the picture is switched on. From the moment of switching on, how long does it take for the lamp to glow?

Question 6

A parallel RLC circuit is being supplied by a DC source as shown in the figure below. What is the value of current following through the capacitor (in A)?

Question 7

Determine the intensity of magnetization (in Nm) of a magnet when the pole strength of the magnet is 30 A-m and the pole of the magnet is 2 sq. m.

Question 8

A silver and zinc voltameters are connected in series. A current of $Description: E:\Gate\SSC-JE Electrical - Part 1\10_Chemical-Effects-of-Electric-Current-final_files\image036.png$ amperes is passed through them for time $Description: E:\Gate\SSC-JE Electrical - Part 1\10_Chemical-Effects-of-Electric-Current-final_files\image037.png$ If $Description: E:\Gate\SSC-JE Electrical - Part 1\10_Chemical-Effects-of-Electric-Current-final_files\image038.png$ gram of zinc is liberated, then the mass of silver deposited is nearly

Question 9

The life of the positive plates of a lead-acid cell is roughly…………………that of negative plates.

Question 10

In two wattmeter method of power calculation of a 3-phase balanced star connected system, what is the power factor of the system, if both the wattmeters show same the positive reading?

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ESE & GATE EE General

Apr 27ESE & GATE EE