正确答案: A

fuel supply

题目：A governor automatically controls engine speed by regulating （）.

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学习资料的答案和解析：

[单选题]串联系统的部件数目n与工作时间t都影响系统的可靠性（）。Ⅰ.串联部件越多，系统可靠性越差；Ⅱ.工作时间越长，系统的可靠性越差

Ⅰ，Ⅱ都对

[单选题]艉轴密封装置的橡胶环常见的失效形式有（）。

老化、裂纹和缺口

[单选题]为了检验螺旋桨的螺距，关键是应测量计算出（）螺距。

局部

[单选题]A-frames are mounted on the bed plate and support （） and cylinder block.

the entablature

[单选题]The external circumference of a pair of main bearing shells is slightly larger than that of the bore of the housing which receives themThe difference is termed （）.

nip

[单选题]Which cause of the following can lead to the engine not to start on air?（）

three of the starting valves stuck