1. Transformers with a capacity of up to _____ have a cooling radiator system with natural cooling

2 MVA
5 MVA
7.5 MVA
10 MVA

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href="https://exam.pscnotes.com/mcq/transformers-with-a-capacity-of-up-to-_____-have-a-cooling-radiator-system-with-natural-cooling/#more-59921">Detailed SolutionTransformers with a capacity of up to _____ have a cooling radiator system with natural cooling

2. In a Weston frequency meter, the magnetic axes of the two fixed coils are

Parallel
Perpendicular
Inclined at 60°
Inclined at 15°

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are" class="read-more button" href="https://exam.pscnotes.com/mcq/in-a-weston-frequency-meter-the-magnetic-axes-of-the-two-fixed-coils-are/#more-59874">Detailed SolutionIn a Weston frequency meter, the magnetic axes of the two fixed coils are

3. The heat dissipating capability of transformers of ratings higher than 30 kVA in increased by providing which of the following?

Corrugations
Fins
Tubes
All of the above

Detailed SolutionThe heat dissipating

capability of transformers of ratings higher than 30 kVA in increased by providing which of the following?

4. Operating torques in analogue instruments are

deflecting and control
deflecting and damping
deflecting, control and damping
vibration and balancing

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instruments are" class="read-more button" href="https://exam.pscnotes.com/mcq/operating-torques-in-analogue-instruments-are/#more-59679">Detailed SolutionOperating torques in analogue instruments are

5. The flash point of transformer oil should be higher than

40°C
60°C
80°C
104°C

Detailed

SolutionThe flash point of transformer oil should be higher than

6. Commonly used instruments in power system measurement are

induction
moving coil or iron
rectifier
electrostatic

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href="https://exam.pscnotes.com/mcq/commonly-used-instruments-in-power-system-measurement-are/#more-59521">Detailed SolutionCommonly used instruments in power system measurement are

7. With direct water cooling it is possible to have ratings of about

200 MW
300 MW
400 MW
600 MW

Detailed SolutionWith direct

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water cooling it is possible to have ratings of about

8. An induction wattmeter can be used for

both D.C. and A.C.
D.
and A.C. B.
any of the above

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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 used for" class="read-more button" href="https://exam.pscnotes.com/mcq/an-induction-wattmeter-can-be-used-for/#more-59214">Detailed SolutionAn induction wattmeter can be used for

9. To avoid the effect of stray magnetic field in

magnetic screening
Wagner earthing device
bridges we can use A. magnetic screening B. Wagner earthing device C. wave filters
any of the above

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effect of stray magnetic field in" class="read-more button" href="https://exam.pscnotes.com/mcq/to-avoid-the-effect-of-stray-magnetic-field-in/#more-59079">Detailed SolutionTo avoid the effect of stray magnetic field in

10. The operating voltage of a meggar is about

6 V
12 V
40 V
100 V

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button" href="https://exam.pscnotes.com/mcq/the-operating-voltage-of-a-meggar-is-about/#more-59047">Detailed SolutionThe operating voltage of a meggar is about

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