Electrical machine design

4. In a single phase power factor meter the phase difference between the currents in the two pressure coils is

exactly 0°
approximately 0°
exactly 90°
approximately 90°

Subscribe on YouTube

Join Our Telegram Channel

two pressure coils is" class="read-more button" href="https://exam.pscnotes.com/mcq/in-a-single-phase-power-factor-meter-the-phase-difference-between-the-currents-in-the-two-pressure-coils-is/#more-45064">Detailed SolutionIn a single phase power factor meter the phase difference between the currents in the two pressure coils is

5. In a low power factor wattmeter the compensating coil is connected

in series with current coil
in parallel with current coil
in series with pressure coil
in parallel with pressure coil

Join Our Telegram Channel
Subscribe on YouTube

is connected" class="read-more button" href="https://exam.pscnotes.com/mcq/in-a-low-power-factor-wattmeter-the-compensating-coil-is-connected/#more-45024">Detailed SolutionIn a low power factor wattmeter the compensating coil is connected

6. Power transformers have rating

equal to 50 kVA
equal to 100 kVA
above 200 kVA
none of the above

Join Our Telegram Channel
Subscribe on YouTube

have rating" class="read-more button" href="https://exam.pscnotes.com/mcq/power-transformers-have-rating/#more-44867">Detailed SolutionPower transformers have rating

7. The rectifier instrument is not free from

temperature error
wave shape error
frequency error
all of the above

Join Our Telegram Channel

11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube from" class="read-more button" href="https://exam.pscnotes.com/mcq/the-rectifier-instrument-is-not-free-from/#more-44749">Detailed SolutionThe rectifier instrument is not free from

8. The usual values of maximum flux densities for distribution transformers using hot rolled silicon steel are

0.5 to 0.8 Wb/m2
0.8 to 1.0 Wb/m2
1.1 to 1.35 Wb/m2
1.4 to 1.8 Wb/m2

Join Our Telegram Channel

24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube silicon steel are" class="read-more button" href="https://exam.pscnotes.com/mcq/the-usual-values-of-maximum-flux-densities-for-distribution-transformers-using-hot-rolled-silicon-steel-are/#more-44744">Detailed SolutionThe usual values of maximum flux densities for distribution transformers using hot rolled silicon steel are

9. In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at

0°
60°
90°
120°

Join Our Telegram Channel
Subscribe on YouTube

are at" class="read-more button" href="https://exam.pscnotes.com/mcq/in-a-dynamometer-3-phase-power-factor-meter-the-planes-of-the-two-moving-coils-are-at/#more-44593">Detailed SolutionIn a dynamometer 3-phase power factor meter, the planes of the two moving coils are at

10. Which of the following instruments indicate the instantaneous value of the electrical quantity being measured at the time at which it is being measured ?

Absolute instruments
Indicating instruments
Recording instruments
Integrating instruments

Detailed SolutionWhich of the following instruments indicate the instantaneous value of the

Join Our Telegram Channel
64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube

electrical quantity being measured at the time at which it is being measured ?
Page 1Page 2Page 3Page 4Page 5
Test 1Test 2Test 3Test 4
Exit mobile version