A、propeller hub
B、lignum vitae
C、shaft packing
D、labyrinth seal
更多“An excessive amount of water is prevented from entering a vessel using a water lubricated stern tube bearing by the use of the （）.”相关的问题
A、the use of excessive amounts of dunnage B、the use of excessive amount of filler cargo C、the failure to stow some item in neat and uniform rows and tiers D、the skill, industry and interest of the longshoremen
A、to cut down the amount of cooling water needed B、to prevent an excess amount of cooling water from being discharged to the bilges C、to supply hot water to the evaporator for more economical operation D、None of the above is tree
A、A.the use of excessive amounts of dunnage B、B.the use of excessive amounts of filler cargo C、C.the failure to stow some items in neat and uniform rows and tiers D、D.the skill，industry and interest of the longshoremen
A、worn cylinder liner B、faulty cylinder relief valve C、excessive lube oil pressure D、excessive scavenge air pressure
A、take shallow breaths of air B、ventilate the area C、wear a breathing apparatus while working D、keep a charged fire hose handy
A、Glazing of the cylinder liners B、Increase valve wear C、Excessive oil pumping D、Increase fuel consumption
A、A.excessive mist density in the crankcases B、B.excessively high crankcase vacuum C、C.excessively high bearing temperature D、D.excessive carbon buildup in the lube oil
A、to prevent the creation of an excessive number of scheduler job classes B、to allow the Automated Maintenance Tasks to use system resources without any restriction C、to allow resource sharing only among the Automated Maintenance Tasks in the maintenance window D、to prevent the Automated Maintenance Tasks from consuming excessive amounts of system resources
A、an air leak has developed in the tank B、the tank cooling system has malfunctioned C、the pilot cylinder discharge valve is leaking D、an excessive amount of insulation has been installed on the tank and piping
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