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
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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
A.read/sufficient
B.consult/sufficiently
C.read/sufficiently
D.consult/sufficient
A.the distance between them remains the same
B.the distance between them is changing
C.the position between them is not changing
D.their positions to the earth remain the same
最新試題
A diesel engine piston ring face is in direct contact with the （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
A thrust bearing is used with a propulsion diesel engine to （）.
An automated diesel engine should normally shut down due to （）
White smoke exhausting from an operating diesel engine may indicate （）.
Proper filtering and straining of fuel oil is important because the （）.
The function of diesel engine piston compression rings is to （）.
The main purpose of the piston oil scraper rings is to （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.