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</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</p> Signup and view all the answers

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

    <p>Fouling</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</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</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</p> Signup and view all the answers

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

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

    What is the suction filter made up of?

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

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

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

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