For ships constructed on or after 01-09-1984, which are correct for alarm system for periodically unattended machinery spaces?
A.be capable of sounding an audible alarm in the main machinery control room or at the propulsion machinery control position B.have a connection to the engineers’public rooms and to each of the engineers’cabins through a selector switch C.Failure of the normal power supply of the alarm system shall be indicated by an alarm D.activate the general alarm if an alarm function has not received attention locally within a limited time正确答案ABC
第二章 第十节 航行安全
