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EN-IEB.AEN / OE1 / 2

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About this collection

The ANR bank contains many sets with original names and codes, including navigation, safety and equipment topics. Select a module by name or use question search.

“ANR — IEB.AEN-Manag — EN-IEB.AEN / OE1 / 2” contains 90 questions across 1 collection.

Learning

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Exam

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Sample questions and answers

These examples come from the published collection. Choose Learning to study questions in sequence, or Exam to check your knowledge.

Which of the following statements concerning the specific gravity of a battery electrolyte is true?

One correct answer

  • The electrolyte becomes less dense when it is cooled.
  • The specific gravity reading is lowered when the electrolyte is heated.✓ Correct answer
  • The most accurate hydrometer reading is obtained immediately after water is added.
  • The temperature does not affect the specific gravity of the electrolyte.
The RPM of an AC generator can be measured with a/an

One correct answer

  • ammeter
  • voltmeter
  • vibrating reed meter✓ Correct answer
  • synchroscope
The true power indicated by a wattmeter depends on the current flow through the load, the magnitude of the potential across the load, and the

One correct answer

  • power factor of the load✓ Correct answer
  • angle of coil displacement
  • inertia of the movable coil
  • high resistance from the load
Regarding an AC generator connected to the main electrical bus; as the electric load and power factor vary, a corresponding change is reflected in the generator armature reaction These changes in armature reaction are compensated for by the

One correct answer

  • governor speed droop setting
  • voltage regulator✓ Correct answer
  • balance coil
  • phase-balance relay
An alternator switchboard has a synchroscope and synchronizing lamps If the synchroscope is broken, which of the steps listed is the most essential before an alternator can be paralleled with the bus?

One correct answer

  • The breaker should be closed when one synchronizing lamp is dark and the other is bright.
  • The breaker should be closed when both synchronizing lamps are bright.
  • The frequency meter should be used to determine that the incoming alternator frequency is slightly higher than the bus.✓ Correct answer
  • A portable phase sequence indicator must be used to verify the information from the lamps.

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