正确答案: A

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题目：为了检验螺旋桨的螺距，关键是应测量计算出（）螺距。

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学习资料的答案和解析：

[单选题]废气锅炉烟垢着火的热量主要传导给（），使锅炉系统不能正常工作，甚至损坏锅炉。

A+B+C

[单选题]增压器的轴承一般以（）端的轴承先损坏，因该处（）、工作条件差。

涡轮/温度高

[单选题]The cooling water jacket is common to all the cylinders but there are often （） to ensure that each cylinder receives the right amount and flow of water.

dividing walls

[单选题]The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating （）.

All of the above

[单选题]The hand steering is a method by which the motion of the rudder is controlled with （）.

a hand-driven steering wheel

[单选题]A crankshaft whose center of gravity coincides with its center line is said to be （）.

statically balanced