14 JUNE 2021 CURRENT AFFAIRS QUIZ

Direct resistance Heating is used in

Salt-Bath furnace

Electrode Boiler

All of these

Resistance Welding

TRUE ANSWER : ?
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

TRUE ANSWER : ?
YOUR ANSWER : ?

A DC generator used for ARC welding should Have

Dropping Characteristics

None of these

Rising characteristics

Straight characteristics

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Stator Voltage

Speed of Rotor

Rotor Reactance

Decreasing Slip speed

TRUE ANSWER : ?
YOUR ANSWER : ?

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

6

−6

−4

4

TRUE ANSWER : ?
YOUR ANSWER : ?

LED lamp have a general life expectancy of

15000 hrs

50000 hrs

1000 hrs

5000 hrs

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YOUR ANSWER : ?

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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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YOUR ANSWER : ?

The speed of the ceiling fan is about

Upto 450 RPM

Upto 200 RPM

Upto 10000 RPM

Upto 10 RPM

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YOUR ANSWER : ?