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Just after stopping the engine while the oil is still circulatingCheck that uniform. oil jets appear from all the oil outlet grooves in the crosshead bearing lower shell and the guide shoesThe oil flow from ____ must be compared from unit; there should be a similarity in the flow patterns.

  • A.the piston cooling oil return pipes
  • B.the main and crankpin bearings
  • C.thrust and intermediate bearings
  • D.stern tube and thrust bearings
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Because of the close tolerances used in diesel engine fuel oil pumps, a worn plunger requires___________.

  • A.grinding the spare plunger to the barrel
  • B.replacing the plunger and the barrel
  • C.highly polishing both the plunger and barrel
  • D.replacing plunger only

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  • A.diameter of the discharge piping, with all other factors remaining the same
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  • D.diameter of the impeller

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  • A.inside micrometer
  • B.feeler gauge and straight edge
  • C.adjustable trammel
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  • A.inefficient cooling
  • B.a leaking air start valve
  • C.a clogged drain valve
  • D.a leaking air bottle

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  • A.cool the bulkheads around the fire
  • B.remove combustibles from direct exposure
  • C.close all openings to the area
  • D.shut off all electric power
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