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EN-EO6-OAG

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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 — EN-EO6-OAG” contains 130 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.

What are ideal conditions for taking Megger test readings of an alternator?

One correct answer

  • Hot after stopping.✓ Correct answer
  • Cooled down to hand-warm.
  • Cooled down to ambient temperature.
  • Running.
Line to line voltage of a Delta connected 3 phase alternator is found to be 440 Volt. What is the phase voltage?

One correct answer

  • 440 Volt.✓ Correct answer
  • 220 Volt.
  • 254.33 Volt.
  • 311.13 Volt.
What possibilities exist to supply power via direct connection to the Emergency Switchboard.Question illustration

One correct answer

  • 1) Supply by main diesel engines. 2) Supply by emergency diesel.
  • 1) Supply by main switchboard. 2) Supply by emergency diesel.✓ Correct answer
  • 1) Supply by shore power. 2) Supply by main switchboard.
  • 1) Supply by shore power. 2) Supply by main switchboard.
Typically, how many times full load current are motor fuses rated in order to withstand the large starting current ?

One correct answer

  • 2 - 3 times.✓ Correct answer
  • 5 - 7 times.
  • 3 - 5 times.
  • 7 - 9 times.
How would you initiate a test, if found necessary, to find out if an alternator preference system is working?

One correct answer

  • By lowering the generator frequency.✓ Correct answer
  • By raising the generator frequency.
  • By raising the alternator voltage.
  • By lowering the alternator voltage.

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