单项选择题
A.ring buoys are thrown overboard
B.engines are stopped
C.fire pumps are started
D.life preservers have been issued to everyone
单项选择题 While on watch in the engine room, you hear a continuous sounding of the general alarmWhich of the following actions should you take?（）
单项选择题 While on watch in the engine room, you hear a continuous sounding of the general alarmWhich of the following actions should you take FIRST?（）
单项选择题 An oceangoing ship of 400 gross tons and above must be fitted with a standard discharge shore connectionWhat is the size of the bolt circle diameter of the shore connection required to transfer oily ballast to a shore side reception facility?（）