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单选题
Fuel injected into a diesel engines cylinder is ignited by ().
A
the heat compressed fuel/air mixture in the cylinder
B
the fuel igniter
C
the fuel injector
D
the fuel pump
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the exhaust will be clearB
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all the fuel will be burned at top dead centerD
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单选题Fuel is ignited in a diesel engine cylinder by ()A
a spark plugB
injectorsC
the heat of compressionD
increasing jacket water temperatures
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单选题In a diesel engine, when the fuel is injected into the cylinder,()A
the piston is just coming upward from the bottom dead centerB
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the piston has just past the TDC
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单选题A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an ()A
increase in engine speedB
increase in cylinder turbulenceC
leaking needle valveD
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单选题Diesel fuel vapors ().A
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can not be ignited by a spark unless they are at their auto-ignition temperatureD
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单选题() into the cylinder because no fuel can burn () it.A
Air must be admitted;withoutB
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