正确答案: C
Ⅱ+Ⅳ
题目:舵角指示器正常时,转舵不准,舵角不正,正舵时舵角不在零位的原因主要是()造成。Ⅰ.舵机故障;Ⅱ.舵杆弯扭变形;Ⅲ.舵杆安装不良;Ⅳ.舵安装时没对准零位;Ⅴ.舵机功率不足。
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学习资料的答案和解析:
[单选题]关于可靠性的规定()。Ⅰ.“完成规定功能”;Ⅱ.“不发生故障”;Ⅲ.“发生故障”
Ⅰ=Ⅱ
[单选题]零件上的微小裂纹可采用修锉、打磨的方法予以消除,若裂纹深度达到裂纹所在壁厚的()时,则应停止修锉、打磨,改用其他的方法修理或报废。
B.3%
[单选题]() at the end of the distribution pipe ensures that adequate pressure is maintained by the pump.
An alarm
[单选题]Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?()
Cavitation in the cooling water pump
[单选题]An increased pressure differential between the inlet and outlet of a strainer usually indicates the strainer is ()
fouled