A.cylinder liner
B.cylinder cover
C.piston
D.exhaust valve
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A.ff overheat is found, the engine must be stopped for inspection
B.Much heat of the crankcase door indicates that the bearing is overheated
C.If bearing clearance is too large, knocking will be heard in the crankcase
D.If bearing clearance is too large or too small, the white metal may be melted
A.Because the piston is exposed to very high temperature, it must be cooled
B.The lower the piston cooling temperature is, the better it is
C.Both water and lube oil can be used as coolant
D.One of the piston cooling methods is vibration cooling, with better effect
A.crankshaft
B.piston
C.connecting rod
D.bearing
A.steam engine
B.steam turbine
C.gas turbine
D.diesel engine
A.100 rpm
B.200 rpm
C.300 rpm
D.500 rpm
最新試題
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Routine monitoring of a diesel engine should include （）.
In a simple mechanical governor, the （）.
The main purpose of the piston oil scraper rings is to （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
What is the function of the thrust bearing?（）