SSC JE ELECTRICAL 2018 WITH SOLUTION SET-1 QUIZ

Lap winding is preferred for

High current and High Voltage

Low current and Low Voltage

Low current and High Voltage

High current and Low Voltage

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A PMMC type voltmeter, having a full-scale reading of 250 V and an internal resistance of 400 kilo-ohms, is connected with the series resistance of 100 kilo-ohms. Calculate the sensitivity of the voltmeter (in Ohms/Volts)

2000

2400

20000

24000

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Which of the following is used for the measurement of the insulation resistance?

Voltmeter

Ammeter

Wattmeter

Megger

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The primary and secondary windings of an Auto-transformer are

Both magnetically and electrically coupled

Magnetically coupled

None of these

Electrically coupled

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In cables, the thickness of the layer of insulation on the conductor depends upon

Power Factor

Current carrying capacity

Voltage

Reactive Power

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If the magnetic susceptibility of any material is less than zero then the material is——

Paramagnetic

Diamagnetic

Ferrimagnetic

Ferromagnetic

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Direct resistance Heating is used in

Electrode Boiler

Resistance Welding

All of these

Salt-Bath furnace

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Calculate the value of the resonant frequency (in kHz) of a tank circuit having the capacitance of 0.01 mF and inductance of 0.01 mH?

0.1591

159.1

15.91

1.591

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Under the no-load condition, the current in a transmission line is due to

Back Low from the earth

Corona effect

The capacitance of the line

Spinning Reserve

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What will be the value of current (in A) in a 50 cm long air-core solenoid, if the value of the magnetic field at the center of the solenoid is 5 mT and the solenoid has 300 turns?

6.63

8.25

5.63

4.36

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