SSC JE ELECTRICAL 2018 WITH SOLUTION SET-1 QUIZ

Direct resistance Heating is used in

Salt-Bath furnace

Electrode Boiler

All of these

Resistance Welding

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YOUR ANSWER : ?

What will be the voltage (in V) across an 8H inductor, when the rate of change of current flowing through it is 0.5A/sec

8

6

2

4

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A DC generator used for ARC welding should Have

Dropping Characteristics

None of these

Rising characteristics

Straight characteristics

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In three phase induction motor maximum torque is Inversely Proportional to the

Stator Voltage

Speed of Rotor

Rotor Reactance

Decreasing Slip speed

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What is the value of current I4 (in A) for the given junction?

6

−6

−4

4

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LED lamp have a general life expectancy of

15000 hrs

50000 hrs

1000 hrs

5000 hrs

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Which one of the following statement is NOT true about PMMC type instruments?

The cost of PMMC instruments is high

PMMC type Instruments have uniformly divided scale

Stray magnetic errors are small in these types of instruments

These instruments are suitable for both AC and DC currents

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For Proper Operation of the transistor, its collector should have

Very small size

Proper Reverse Bias

Proper Forward Bias

None of these

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The ripple factor is

Peak Value/DC Value

RMS value/DC Value

RMS Value/Peak Value

Peak Value/RMS Value

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The speed of the ceiling fan is about

Upto 450 RPM

Upto 200 RPM

Upto 10000 RPM

Upto 10 RPM

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