A . shallow water
B . an engine that is misfiring
C . a tight tail shaft gland
D . worn stern bearing or misalignment
[单选题]When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?A.The propeller hub taper and shaft keyway should be inspected for cracks or corrosionB.The stern bearing alignment with the ster
[单选题]In the navigation,_______cause the shafting over load most easilyA.stopping the main engine suddenlyB.changing the main engine running direction suddenlyC.the sailing from the shallow water area to the deep water areaD.the ship's trim too much
[单选题]The projection on a shaft designed to change circular motion into up and down or back and fore motion is called ().A . wheelB . crankshaftC . running gearD . cam
[单选题]The () of the main shaft should be measured with a ().A . clearance;calipersB . sinking;bridge gaugeC . diameter;bridge gaugeD . clearance;lead wire
[单选题]On opposite ends of a single shaft of a turboblower are a gas driven ()and a air compressor, which are sealed each other.A . charge air receiverB . scavenging air beltC . turbineD . air cooler
[单选题]Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or ().A . inside micrometerB . feeler gaugeC . adjustable trammelD . sighting device
[单选题]A.n indication of an overloaded main propulsion diesel engine is( ).A.white smoke in the exhaustB.high exhaust gas pyrometer readingsC.sparks in the exhaustD.blue smoke in the exhaust
[单选题]对广义表L=((a,b),(c,d),(e,f))执行操作tail(tail(L))的结果是 ( )A.(e,f)B.((e,f))C.(f)D.()
[单选题]Sealing in pump shaft is achieved by means of the ( ).A.gasketB.packingC.o-ring
[名词解释] 英译汉:main shaft