Just after stopping the engine while the oil is still c

单项选择题

Just after stopping the engine while the oil is still circulating.Check that uniform oil jets appear from all the oil outlet grooves in the crosshead bearing lower shell and the guide shoes.The 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

相关考题

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船舶电气与船舶安全