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EO4-Operate Auxiliary Machinery and Control Systems

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About this collection

Videotel questions are grouped by professional topic, including machinery, electrical equipment, fuel and ballast operations. Choose a subject relevant to your preparation.

“Видеотел — Engine Category — EO4-Operate Auxiliary Machinery and Control Systems” contains 483 questions across 1 collection.

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Sample questions and answers

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How is an air conditioning compressor normally unloaded?The source image is unavailable.

One correct answer

  • 1) By holding open the discharge valves.
  • 2) By throttling the suction valves.
  • 3) By holding open the suction valves.✓ Correct answer
  • 4) By throttling the suction valves.
What is the principle in which oil/water separation takes place in this cascade tank ?Question illustration

One correct answer

  • 1) By separation frames.
  • 2) By directional change and centrifugal action in triple-action.✓ Correct answer
  • 3) By acceleration through chambers.
  • 4) By acceleration and gravitation.
Item "H' of the drawing indicates ............................ of this turbine installation ?Question illustration

One correct answer

  • 1) the distributor.
  • 2) the steam filter.
  • 3) the manoevring stand.✓ Correct answer
  • 4) the steam reducer.
The relief valves in a fuel oil service system discharge to either the service pump suction or to the ..............The source image is unavailable.

One correct answer

  • 1) recirculating line.✓ Correct answer
  • 2) simplex fuel oil strainer.
  • 3) settling tanks.
  • 4) slop retention tanks.
If insufficient water sealing is present (blue colour) in the bowl of this separator, what will be the effect ?Question illustration

One correct answer

  • 1) Water will discharge with the clean oil.
  • 2) Insufficient oil will be pumped through the purifier.
  • 3) The purifier will overflow oil on the water side.✓ Correct answer
  • 4) The high temperature alarm will activate.

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