A.piston cooling
B.sleeve cooling
C.central cooling
D.jacket cooling
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A.a exhaust valve
B.a piston skirt
C.a piston crown
D.an air suction valve
A.unusually solid welded
B.never be solid forged
C.almost invariably solid forged
D.almost invariably be welded
A.result from
B.result in
C.give out
D.given from
A.make
B.cause
C.result
D.produce
A.boiler
B.heater
C.engine
D.cooler
最新試題
To determine if the lube oil filter elements need changing, （）.
Routine monitoring of a diesel engine should include （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
Lube oil cannot be efficiently filtered if its （）.
An automated diesel engine should normally shut down due to （）
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
A thrust bearing is used with a propulsion diesel engine to （）.
What is the function of the thrust bearing?（）