A.no equipment in contact with sea water
B.less equipment in contact with fresh water
C.more equipment in contact with sea water
D.less equipment in contact with sea water
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A.the temperature
B.the rust
C.the pressure
D.the humidity
A.pumped speed；came out
B.pumping rate；overflowed
C.flowing rate；leaked out
D.flowed speed；spilled out
A.machined
B.bored
C.honed
D.drilled
A.ship draft
B.pitch
C.engine load
D.oil viscosity
A.advanced
B.retarded
C.relayed
D.cut off
最新試題
Routine monitoring of a diesel engine should include （）.
The function of diesel engine piston compression rings is to （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
A diesel engine piston ring face is in direct contact with the （）.
To determine if the lube oil filter elements need changing, （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Proper filtering and straining of fuel oil is important because the （）.
The main purpose of the piston oil scraper rings is to （）.
What is the function of the thrust bearing?（）