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EN-IEB.AEN / OE2, OE3 / 4

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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-IEB.AEN / OE2, OE3 / 4” contains 37 questions across 1 collection.

Learning

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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.

If a small electric motor is imersed in salt water it should be I washed in fresh water II dried in an oven

One correct answer

  • I only
  • II only
  • both I and II✓ Correct answer
  • neither I or II
As shown in the illustrations, ordered rudder angle is fed back from theQuestion illustration

One correct answer

  • power unit to the magnetic amplifier✓ Correct answer
  • steering gear to the control potentiometer
  • magnetic amplifier to the steering gear
  • rudder yoke to the non-followup controller
As shown in the illustrations, feedback or rudder angle repeatback is used by the steering stand in which operational modes?Question illustration

One correct answer

  • Gyro-compass and hand steering only✓ Correct answer
  • Hand steering and non-followup only
  • Non-followup and gyro-compass only
  • Gyro-compass and synchronizing only
If a small electric motor has been submerged in saltwater for a short period of time, you should

One correct answer

  • send it ashore for rewinding
  • rinse it with warm freshwater and bake it dry in an oven✓ Correct answer
  • soak it in a bucket of commercial solvent and bake with internal heat
  • clean it with carbon tetrachloride and blow it out with compressed air
What precaution should be taken with a vessel's impressed current cathodic protection system after a drydocking period during which the hull has been painted?

One correct answer

  • Output currents should be carefully monitored to assure operation at nearly 100 % capacity for proper curing.
  • Reference cell voltages should be maintained at half the normal range for approximately 48 hours.
  • The unit should remain off for the specified amount of time so as not to disturb curing.✓ Correct answer
  • A slight (10-15%) overcurrent to the anodes should be allowed in order to speed drying.

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