正确答案: B

over speed

题目：The oil index of main engine should be controlled to prevent it from ____ in heavy weather.

解析：B

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举一反三的答案和解析：

[单选题]Vee-type engines have the connecting rods from two cylinders connected to each _____ of the crankshaft.

throw

[单选题]Accidental flooding of the engine room bilges by the bilge main is prevented by( ).

stop-check valves installed in the bilge suction manifolds

解析：解析：bilge main:舱底水总管;stop-check valves：截止止回阀

[单选题]尖锐湿疣病毒在温暖潮湿的环境中最容易繁殖，病变主要发生于______部位.

外生殖器

[单选题]When voltage and current developed in an AC circuit reach their peak values at the same time, the power factor is _____.

maximum

[单选题]追越条款优先于：I、帆船条款；II、对遇局面条款；III、规则第19条

I、II

[单选题]为防止差压变送器发生单向过载，投入运行时正确的操作顺序是( )。

开平衡阀，开炉水阀和参考水位阀，再关平衡阀

[单选题]Compared to a constant pitch propeller, a controllable pitch propeller

more efficiently uses available engine power

[单选题]直升飞机进行吊升的悬空高度一般是距艇筏的（）左右，吊运区周围至少（）内无障碍物。

27米.16米