单项选择题
A.port side B.starboard side C.BDC position D.DC position
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
The cylinder oil is pumped into the cylinder (via non-r...
单项选择题The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass the lubricating orifices during （）
A.the upward stroke B.the downward stroke C.the power stroke D.the suction stroke
If there are micro-seized areas on the liner or skirt s...
单项选择题If there are micro-seized areas on the liner or skirt scratch-over manually with a coarse carbo-rundum stone (grindstone), moving the grindstone （） at an angle of 20 to 30 degrees to horizontal.
A.clockwise B.anticlockwise C.crosswise D.vertically
