Having()the bear in the woods for one week, the man was almost out of food.
A、caught
B、shot
C、trailed
D、seeking
A、caught
B、shot
C、trailed
D、seeking
A、moisture emulsification of the bearing grease B、insufficient circulation and overheating of the bearing C、proper grease circulation to cool the bearing D、sliding friction between balls and races
A、the bearing had been overheated B、water was present in the oil C、the lube oil was not being properly filtered D、the maximum allowable bearing pressure had been exceeded
A、smoother pump operation B、overheating of the bearing C、reduced corrosion in the bearing D、increased pump capacity
A、the bearing near to the diesel engine B、the intermediate bearing near to the thrust bearing C、the intermediate bearing near to the sterntube D、the bearing located at the middle of the diesel engine and the sterntube
A、A.reduce the wear of bearing surfaces B、B.cool the bearing surfaces C、C.assist in sealing bearing surfaces D、D.all of the above
A、loss of flow in the fuel system B、loss of pressure in the air system C、loss of flow in the lubricating system D、loss of pressure in the lubricating system
A、the piston cooling oil return pipes B、the main and crankpin bearings C、thrust and intermediate bearings D、stern tube and thrust bearings