关于螺旋桨轴的连接方式，下列说法不正确的是（）。

【名词&注释】

螺旋桨轴(propeller shaft)

[单选题]关于螺旋桨轴的连接方式，下列说法不正确的是（）。

A. A．键连接键槽应力集中严重
B. B．胶黏剂连接适于D＜4.5m的沿海及内河船舶
C. C．D＜1.5m的小型船舶可直接采用胶黏剂连接
D. D．油压无键套合连接的桨锥孔与轴锥配合不必刮研

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学习资料：

[单选题]艉轴铜套损坏的主要形式有（）。Ⅰ.腐蚀；Ⅱ.裂纹；Ⅲ.过度磨损；Ⅳ.套合松动；Ⅴ.接缝不良。

A. Ⅱ＋Ⅲ
B. Ⅰ＋Ⅱ＋Ⅳ
C. Ⅱ+Ⅲ＋Ⅳ＋Ⅴ
D. Ⅰ＋Ⅲ＋Ⅳ

[单选题]About half an hour before the engine is required, cooling water at （） must be circulated.

A. more than the working temperature
B. less than the working temperature
C. the working temperature
D. the same as the surrounding temperature

[单选题]Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine （） ahead and astern.

A. a brief trial with turning gear
B. a brief trial on power
C. a long trial by steering gear
D. one minutes trial with windla

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

A. should be correctly carried out
B. should correctly be taken place
C. should carded with care
D. must to carry out with great care

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