正确答案: D
产品丧失规定功能
题目:所谓故障是指()。
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学习资料的答案和解析:
[单选题]船舶的有效功率与收到功率之比为推进效率。已知船舶有效功率为4500kW,推进效率为0.70,则螺旋桨收到功率为()kW。
6430
[单选题]经修理的涡轮壳体要经过()的水压试验,合格后方可使用。
1.5倍工作压力
[单选题]船舶轴系中不包括()。
内置式推力轴和推力轴承
[单选题]单轴系大多用于()。Ⅰ.大型海船;Ⅱ.内河中、小船舶;Ⅲ.军舰;Ⅳ.拖船;Ⅴ.客船。
Ⅰ+Ⅱ+Ⅳ
[单选题]油润滑艉轴承尾端密封装置的作用是()。
防止海水进入艉轴承和防止滑油漏泄
[单选题]The () is not properly set thus causing either advanced or retarded firing.
fuel injection pump
[单选题]The four-stroke engine is used for () and sometimes for main propulsion with a gearbox to provide a propeller speed of between 90 to 120 rev/min.
alternator
[单选题]The main function of tie rods in the construction of large, low speed diesel engines is to().
accept most of the tensile loading that results from the firing forces developed during operation