单项选择题

Significant retardation of a diesel engine fuel injection timing will result in （）

A.smoother engine operation
B.advanced fuel ignition
C.increased fuel economy
D.reduced engine power

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Which of the following condition is likely to develop i...

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A.Indicated exhaust pressure readings will increase
B.Pyrometer responses will be retarded
C.Indicated cylinder temperature readings will increase
D.Indicated firing pressure readings will increase

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If the diesel engine fuel injection timing is changed t...

单项选择题If the diesel engine fuel injection timing is changed to delay the start of injection until the pistons are at top dead center, the engine will（）

A.backfire through the air intakes
B.develop less power under load
C.have high firing pressures
D.lift its cylinder relief valves

船舶电气与船舶安全

Significant retardation of a diesel engine fuel injection timing will result in （）