单选题对舵的主要方法()。 ①扳动舵轮或手柄使舵角指示器与舵机室实际舵角为°; ②将舵轮左(右)转满舵,核对各处舵角指示器一致; ③连续作左(右)5°,15°,25°35°操舵,回舵; ④再一次从一舷满舵到另一舷满舵,快速活舵,回舵试验。A①②③B②③④C①③④D①②③④
单选题
对舵的主要方法()。 ①扳动舵轮或手柄使舵角指示器与舵机室实际舵角为°; ②将舵轮左(右)转满舵,核对各处舵角指示器一致; ③连续作左(右)5°,15°,25°35°操舵,回舵; ④再一次从一舷满舵到另一舷满舵,快速活舵,回舵试验。
A
①②③
B
②③④
C
①③④
D
①②③④
参考解析
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