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MMLU-Pro / 11738 / While operating on variable frequency supplies, the AC motor requires variable…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

While operating on variable frequency supplies, the AC motor requires variable voltage in order to

category

engineering

options

  1. extend the motor's lifespan.
  2. increase the motor's efficiency.
  3. reduce the motor's noise.
  4. maintain a constant speed.
  5. improve the motor's torque.
  6. protect thyristor from dV / dt.
  7. improve the capabilities of the inverter.
  8. avoid effect of saturation.
  9. protect the insulation.
  10. prevent the motor from overheating.

src

ori_mmlu-electrical_engineering

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Official source

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