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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 — 08_MIB — EN-MIEB / D” contains 8 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.

What is the synchronous speed of an eight-pole, 240-V, 50-Hz motor?

One correct answer

  • 750 r/min✓ Correct answer
  • 1250 r/min
  • 1600 r/min
  • 3600 r/min
A transformer in an electric circuit serves to

One correct answer

  • generate its own electrical power
  • transform electrical energy into mechanical energy
  • increase or decrease circuit voltage as required✓ Correct answer
  • convert AC current to DC current
The rotor current for a split-phase induction motor is obtained:

One correct answer

  • directly from a separate DC source.
  • directly from the applied AC source.
  • from a rotating magnetic field set up in the stator.✓ Correct answer
  • by the action of the centrifugal switch.
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.
The basic operating principle of a transformer is attributed to

One correct answer

  • electromagnetic induction✓ Correct answer
  • variance of a conductor in a magnetic field
  • mutual reaction
  • thermionic emission

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