A.is made to circulate out of the system
B.is made to circulate within the system
C.is made circulate within the system
D.is made circulate out of the system
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A.Hash point
B.Viscosity
C.Pour point
D.Cetane number
A.viscosity
B.flash point
C.cetane number
D.calorific value
A.Air must be admitted；without
B.Oil must be injected；without
C.Air must be admitted；with
D.Oil must be injected；with
A.gives up large amount of heat
B.gives off large amount of heat
C.gives up large amount of steam
D.gives off large amount of steam
A.to fuel oil instead of diesel oil
B.for fuel oil instead of diesel oil
C.to diesel oil into fuel oil
D.for diesel oil into fuel oil
最新試題
The minimum speed an engine must attain before ignition can occur depends upon （）.
Routine monitoring of a diesel engine should include （）.
A thrust bearing is used with a propulsion diesel engine to （）.
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 （）.
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?（）
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
To determine if the lube oil filter elements need changing, （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
Combustion knock occurring in a diesel engine can be caused by （）.