When will the float-free emergency position indicating radiobeacon be activated after abandoning ship? ()

A . Immediately after floating free B . After about one hour when the salt water activates the battery C . Only when keyed by the radar of another vessel D . Only when daylight activates the photovoltaic cell

时间:2022-10-21 23:03:50 所属题库:雷达及ARPA的使用题库

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