A、CO2 system
B、Foam system
C、Dry power system
D、Water supply system
更多“（）is main emergency fire system in all merchant ships.”相关的问题
A、A.distribution boards B、B.section boards C、C.emergency switch boards D、D.main switch boards
A、Control panel of main generator B、Control panel of emergency generator C、Paralleling panel D、Load panel of main generator
A、Paralleling panel B、Load panel C、Emergency generator control pane D、Main generator control pane
A、The light comes on at sunset B、There is an emergency light if the main light is extinguished C、The height of the light is 24 feet D、The tower is painted with black and white stripes
A、A.The light comes on at sunset B、B.There is an emergency light if the main light is extinguished C、C.The height of the light is 24 feet D、D.The tower is painted with black and white stripes
A、there is a minor emergency B、there is an actual emergency C、there were a minor emergency D、there were an actual emergency
A、be switched off by the duty officer B、be switched on by the duty officer C、be switched off automatically D、be switched on automatically
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