A.transfer heat from the cylinder to the piston
B.scrape oil from the sides of the piston
C.seal the combustion space from the crankcases
D.prevent any piston contact with the cylinder liner
您可能感興趣的試卷
你可能感興趣的試題
A.compression ratio of the engine
B.volume of the engine
C.relationships between pressure and volume during one stroke of the engine
D.relationships between pressure and volume during one cycle of the engine
A.once every crankshaft revolution
B.once every two crankshaft revolutions
C.once every piston stroke
D.twice every piston stoke
A.entirely constant pressure
B.entirely constant temperature
C.a combination of constant volume and constant pressure
D.a combination of constant temperature and constant pressure
A.spring force
B.hydraulic pressure
C.centrifugal force
D.mechanical linkage
A.maintaining a constant rack setting
B.storing kinetic energy
C.maintaining equal exhaust pressure
D.maintaining even camshaft speed
最新試題
Cold weather starting of a diesel engine may be made easier by（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Which of the following items don’t belong to dock repair works?（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
（） is not installed on the main switchboar.
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）