正确答案: D

Ⅰ＋Ⅲ＋Ⅳ＋Ⅴ

题目：在舵机功能正常的情况下，出现舵沉重，转舵不灵，转满舵需较长时间，这可能是（）等原因造成的点。Ⅰ.舵叶进水；Ⅱ.舵承间隙过大；Ⅲ.舵系安装不正；Ⅳ.舵杆弯曲变形；Ⅴ.舵承损坏。

查看原题 查看所有试题

学习资料的答案和解析：

[单选题]对于质量分布不在同一平面内，轴向长度较大的回转件，其平衡程度用（）表示。

C．e•ω

[单选题]局部螺距是桨叶上（）的螺距。

根据任意半径截面上任意角度的部分螺距计算出

[单选题]四冲程柴油机停增压器运转，相当于非增压柴油机，但此时工作的主要问题是（）。

气阀重叠角较大，排气倒流

[单选题]A: Please tell me the specifications and quantity.B: （）

300 tons of 180 cst fuel oil

[单选题]After "F.W.E" is given, the air system is shut down, the （） gear put in, all drains and indicator cocks opened, and the cooling water kept running.

turning

[单选题]In a large, slow-speed, main propulsion diesel engine, which of the parts listed is under tension when the engine is running?（）

Tie rod

[单选题]One major disadvantage of a low-speed diesel as compared to a steam main-propulsion system is（）.

a minimum speed for the engines that limits the minimum speed of the vessel

[单选题]Overspeed of the diesel engine driving an electric generator could cause（）.

damage to windings