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EN-MIEB / D

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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-MIEB / D” contains 21 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.

The transformer used with a certain model car set has 240 turns in its primary coil and 24 turns in its secondary coil. If the transformer is connected to a 120-V wall receptacle the secondary voltage output would be approximately:

One correct answer

  • 6-V AC.
  • 12-V AC.✓ Correct answer
  • 18-V AC.
  • 24-V AC.
A certain transformer has a turns ratio of 1:1. The transformer is used for:

One correct answer

  • impedance matching.
  • changing frequency.
  • isolation.✓ Correct answer
  • stepping-up voltage.
Transformer cores are laminated to reduce

One correct answer

  • eddy currents✓ Correct answer
  • secondary flux
  • leakage flux
  • all of the above
One disadvantage of the autotransformer is:

One correct answer

  • it can only step up the voltage
  • it can only step down the voltage
  • it does not provide electrical isolation✓ Correct answer
  • none of the above
Current is produced in a squirrel-cage rotor by means of:

One correct answer

  • brushes and slip rings.
  • a commutator.
  • induction.✓ Correct answer
  • synchronous motion.

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