Govt Exams Mock Test FREE | Online Quiz Competition

Q1. Assertion (A): Inverters and choppers use fast-switching thyristors
Reason (R): Fast-switching SCR has a low turn-off time.

Both A and R are correct and R is correct explanation of A

Both A and R correct but R is not correct explanation of A

A is correct but R is wrong

A is wrong but R is correct

Q2. For a single phase square wave inverter, what is the persentage of the third order harmonic component in relation to the fundamental component

25%

33.33%

48%

15.30%

Q3. For variable frequency applications, ______ is used

Half-wave converter

Full-wave converter

Inverter

Cycloconverter

Q4. A periodic waveform possessing half-wave symmetry has no

Odd harmonics

Even harmonics

None of the above

Both (A) and (B)

Q5. In a mercury arc rectifier_________flow from anode to cathode.

ions

electrons

ions and electrons

any of the above

Q6. When the positive gate voltage is applied to the MOSFET, it is said to operate in the

Enhancement mode.

Conduction mode.

Depletion mode.

Breakdown mode.

Q7. The di/dt rating of an SCR is specified for its

Decaying anode current

Rising gate current

Decaying gate current

Rising anode current

Q8. A thermistor is inherently suitable for temperature measurement involving

high span and low sensitivity

low span and high sensitivity

high span and high sensitivity

low span and low sensitivity

Q9. Which of the following will happen if a voltmeter is connected like an ammeter in series to the load ?

There will be almost no current in the circuit

The meter will burn.

The measurement will be too high.

A very high current will flow.

Q10. Creeping in energy meters can be prevented by proving

One hole on the disc

Two holes on opposite sides of the disc

Extra voltage coil in the meter

Extra current coil in the meter

Quiz

Year 2024

February
Week # 4 Quiz 2

Q1. Assertion (A): Inverters and choppers use fast-switching thyristors
Reason (R): Fast-switching SCR has a low turn-off time.

Q2. For a single phase square wave inverter, what is the persentage of the third order harmonic component in relation to the fundamental component

Q3. For variable frequency applications, ______ is used

Q4. A periodic waveform possessing half-wave symmetry has no

Q5. In a mercury arc rectifier_________flow from anode to cathode.

Q6. When the positive gate voltage is applied to the MOSFET, it is said to operate in the

Q7. The di/dt rating of an SCR is specified for its

Q8. A thermistor is inherently suitable for temperature measurement involving

Q9. Which of the following will happen if a voltmeter is connected like an ammeter in series to the load ?

Q10. Creeping in energy meters can be prevented by proving

Quiz

Year 2024

July Week # 1 Expire on 31 Jul 2024

July Week # 2 Expire on 07 Aug 2024

July Week # 3 Expire on 14 Aug 2024

July Week # 4 Expire on 21 Aug 2024

February Week # 4 Quiz 2

Q1. Assertion (A): Inverters and choppers use fast-switching thyristors Reason (R): Fast-switching SCR has a low turn-off time.

Q2. For a single phase square wave inverter, what is the persentage of the third order harmonic component in relation to the fundamental component

Q3. For variable frequency applications, ______ is used

Q4. A periodic waveform possessing half-wave symmetry has no

Q5. In a mercury arc rectifier_________flow from anode to cathode.

Q6. When the positive gate voltage is applied to the MOSFET, it is said to operate in the

Q7. The di/dt rating of an SCR is specified for its

Q8. A thermistor is inherently suitable for temperature measurement involving

Q9. Which of the following will happen if a voltmeter is connected like an ammeter in series to the load ?

Q10. Creeping in energy meters can be prevented by proving

Record & Track Your Performance

February
Week # 4 Quiz 2

Q1. Assertion (A): Inverters and choppers use fast-switching thyristors
Reason (R): Fast-switching SCR has a low turn-off time.