单项选择题
A.transferring drill water B.dumping bulk materials C.pumping out flooded compartments D.evacuating the unit
On a vessel，the keel is the primary strength member of ...
单项选择题On a vessel，the keel is the primary strength member of the lower hull form in which direction?（）.
A.transverse B.diagonal C.longitudinal D.vertical
On a bulk chemical carrier，water should NOT be used as ...
单项选择题On a bulk chemical carrier，water should NOT be used as an extinguishing agent to fight a fire if the water may come into contact with the chemical called（）.
A.acrylic acid B.benzene C.oleum D.vinyl toluene
Oceangoing dry bulk cargo vessels over 1000 GT must hav...
单项选择题Oceangoing dry bulk cargo vessels over 1000 GT must have approved combination-type fire nozzles at all（）.
A.fire stations aboard the vessel，except for those in open deck areas weatherdeck and cargo hold fire stations B.interior fire stations C.engine room fire stations D.all of the above
