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（）<br>A:backfire through the air intakes<br>B:develop less power under load<br>C:have high firing pressures<br>D:lift its cylinder relief valves

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

出自：海船船员证

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