Air Compressor and Heat Exchanger Components
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Questions and Answers

Which part of a turbocharger is one of the most critical components?

  • Top housing (correct)
  • Suction valve
  • Connecting rod
  • Center housing

What is the purpose of the suction valve in an air compressor?

  • To regulate air flow
  • To increase thrust to the bearing surface
  • To minimize thrust to the bearing surface (correct)
  • To cool the compressor

What is the function of the condenser in a heat exchanger?

  • To regulate the flow of cooling water
  • To increase the temperature of the hydraulic fuel
  • To exchange heat from the hot hydraulic fuel to the cool water (correct)
  • To heat the cooling water

What is the most likely location where metal erosion problems often occur?

<p>Plates (C)</p> Signup and view all the answers

What is the result of re-rolling tubes that are not leaking when tightening leaking tube joints?

<p>Overheating of the tube wall (C)</p> Signup and view all the answers

What is the term for the accumulation of unwanted material on solid surfaces?

<p>Fouling (B)</p> Signup and view all the answers

What is the purpose of the suction valve in an air compressor?

<p>To allow air flow into the cylinder and prevent back flow (D)</p> Signup and view all the answers

What is the minimum air pressure required by a main air compressor to start the diesel engine?

<p>10 bar (D)</p> Signup and view all the answers

What is the reason why the main air compressor cannot produce enough air when running?

<p>Valve plates are dirty (B)</p> Signup and view all the answers

Where can you find the suction and delivery valves of an air compressor?

<p>Cylinder block (C)</p> Signup and view all the answers

What is the function of the automatic drain in an air compressor?

<p>To remove moisture from the stage cooler (D)</p> Signup and view all the answers

What is the suction filter made up of?

<p>Copper or soft steel with a paper material (B)</p> Signup and view all the answers

What type of repair is made only to relieve the problems or damages of the machineries in a short period of time?

<p>Temporary Repair (B)</p> Signup and view all the answers

One simple method of making a temporary repair of a leaky pipe is to:

<p>Wrap the leaky area with rubber sheet (A)</p> Signup and view all the answers

Which of the following method of repair is made to avoid re-occurrence of the repair problem?

<p>Permanent repair (A)</p> Signup and view all the answers

Which of the following repair methods needs more time to carry out?

<p>Permanent repair (C)</p> Signup and view all the answers

A permanent repair can be possible in which of the following conditions?

<p>Spares/tools needed is on hand (A)</p> Signup and view all the answers

What type of repair would the chief engineer do to secure life and property onboard if a vessel encounters trouble?

<p>Emergency repair (A)</p> Signup and view all the answers

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