A.atmosphere
B.the fresh water
C.compressed air
D.chemical compounds
您可能感興趣的試卷
你可能感興趣的試題
A.a filter
B.a strainer
C.a magnetic filter
D.a fine strainer
A.tank
B.sump
C.vessel
D.bottle
A.a coil spring
B.a sealing ring
C.an oil distributor ring
D.main seal ring
A.the crosshead
B.the journals of the crosshead
C.the crosshead shoes
D.the guides
A.the crank-web
B.the connecting rod
C.the main bearing
D.the cross-head
最新試題
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Lube oil cannot be efficiently filtered if its （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
To determine if the lube oil filter elements need changing, （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
The main purpose of the piston oil scraper rings is to （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.