Govt Exams Mock Test FREE | Online Quiz Competition

Q1. In buck converter, the critical capacitance value of the capacitor 'C' connected across the load is

directly proportional to the switching frequency

inversely proportional to the square of the switching frequency

inversely proportional to the switching frequency

directly proportional to the square of the switching frequency

Q2. A single phase AC voltage controller is controlling current in a purely inductive load. If the firing angle of SCR is \(\alpha\), what will be the conduction angle of the SCR?

\(2\pi - \alpha \)

\(\pi \)

\(\pi - \alpha \)

\(2\pi\)

Q3. The output voltage wave form of a 3-phase square wave inverter contains

only even harmonics

both odd and even harmonics

only odd harmonics

only triplen harmonics

Q4. An elevator drive is required to operate in

One quadrant only

Two quadrants

Three quadrants

Four quadrants

Q5. Which of the following is used as an active device in electronics circuits?

Transformer

Electric Heater

SCR

Loud speaker

Q6. During forward blocking state thyristor is associated with

Large current and low voltage

Low current and large voltage

Low current and low voltage

Large current and large voltage

Q7. The turn-off time of GTO does NOT include:

Fall period

Settling period

Storage period

Tail period

Q8. The turns compensation is used in current transformer primarily for reduction of

phase angle error

both ratio and phase angle error

ratio error, reduction in phase angle error is incidental.

none of the above

Q9. A three digit 0-1 V digital voltmeter will have a resolution of____________.

1 mV

0.1 V

0.5 V

1 V

Q10. The secondary winding of which of the following transformers is always kept closed?

Current transformer

Voltage transformer

Power transformer

Stepdown transformer

Quiz

Year 2024

July
Week # 4 Quiz 2

Q1. In buck converter, the critical capacitance value of the capacitor 'C' connected across the load is

Q2. A single phase AC voltage controller is controlling current in a purely inductive load. If the firing angle of SCR is \(\alpha\), what will be the conduction angle of the SCR?

Q3. The output voltage wave form of a 3-phase square wave inverter contains

Q4. An elevator drive is required to operate in

Q5. Which of the following is used as an active device in electronics circuits?

Q6. During forward blocking state thyristor is associated with

Q7. The turn-off time of GTO does NOT include:

Q8. The turns compensation is used in current transformer primarily for reduction of

Q9. A three digit 0-1 V digital voltmeter will have a resolution of____________.

Q10. The secondary winding of which of the following transformers is always kept closed?

Quiz

Year 2024

August Week # 3 Expire on 14 Sep 2024

August Week # 4 Expire on 21 Sep 2024

September Week # 1 Expire on 30 Sep 2024

September Week # 2 Expire on 07 Oct 2024

July Week # 4 Quiz 2

Q1. In buck converter, the critical capacitance value of the capacitor 'C' connected across the load is

Q2. A single phase AC voltage controller is controlling current in a purely inductive load. If the firing angle of SCR is \(\alpha\), what will be the conduction angle of the SCR?

Q3. The output voltage wave form of a 3-phase square wave inverter contains

Q4. An elevator drive is required to operate in

Q5. Which of the following is used as an active device in electronics circuits?

Q6. During forward blocking state thyristor is associated with

Q7. The turn-off time of GTO does NOT include:

Q8. The turns compensation is used in current transformer primarily for reduction of

Q9. A three digit 0-1 V digital voltmeter will have a resolution of____________.

Q10. The secondary winding of which of the following transformers is always kept closed?

Record & Track Your Performance

July
Week # 4 Quiz 2