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
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?()
The main purpose of the piston oil scraper rings is to ().
The highest pressure in a diesel engine cylinder normally occurs ().
Lube oil cannot be efficiently filtered if its ().
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should ().
In using reduction gears to obtain efficient propeller speeds, ().
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?()
What is the function of the thrust bearing?()
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a ().
Maximum horsepower of a diesel engine is attained ().