正确答案: D

尽量选通用工具

题目：吊缸时关于正确使用工具的说法不正确的是（）。

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学习资料的答案和解析：

[单选题]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。

D．I＋Ⅲ

[单选题]填料函式艉轴密封装置要求换新填料安装时应（）。Ⅰ.材质不变；Ⅱ.每圈长度恰好对接；Ⅲ.各道填料接口错开；Ⅳ.填料的圈数不变；Ⅴ.必须全部更换。

Ⅱ＋Ⅲ

[单选题]关于螺旋桨鸣音，下列不正确的说法是（）。

导边涡流激振力引起的桨叶振动

[单选题]（） in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine.

No matter

[单选题]The piston moves up and down, thus causing the rotational movement of the（）

crankshaft

[单选题]To avoid scavenge fires occurring the engine timing and equipment maintenance （）.

should be correctly carried out

[单选题]With VIT unit the timing of fuel injection of an engine can be regulated automatically according to the （）.

engine load

[单选题]A decrease in the flash point of diesel engine lube oil indicates the lube oil has become （）.

diluted with fuel oil

[单选题]An increase in the air inlet manifold pressure of a diesel engine will result in a/an （）.

decrease in fuel consumption per horsepower-hour