正确答案: D

D．I＋Ⅲ

题目：柱塞偶件配合面磨损后会导致（）。Ⅰ.喷油压力下降；Ⅱ.喷油定时延后；Ⅲ.喷油量减少；Ⅳ.喷油时间延长。

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学习资料的答案和解析：

[单选题]消除增压器振动的方法可采用（）。Ⅰ.换新转子；Ⅱ.换新轴承；Ⅲ.动平衡试验；Ⅳ.静平衡试验；Ⅴ.校中测量。

A．Ⅰ＋Ⅱ＋Ⅲ＋Ⅴ

[单选题]桨叶上同一半径截面上的局部螺距的算术平均值称为该截面的（）螺距。

截面

[单选题]A governor automatically controls engine speed by regulating （）.

fuel supply

[单选题]After "F.W.E" is given, the air system is shut down, the （） gear put in, all drains and indicator cocks opened, and the cooling water kept running.

turning

[单选题]The minimum speed an engine must attain before ignition can occur depends upon （）.

all of the above

[单选题]The part of a windlass which physically engages the chain during hauling or paying out is the（）.

wildcat