单项选择题
Which statement is FALSE concerning precautions during fueling operations?（）
A.All engines，motors，fans，etc. should be shut down when fueling B.All windows，doors，hatches，etc. should be closed C.A fire extinguisher should be kept nearby D.Fuel tanks should be topped off with no room for expansion
单项选择题 Which space(s) on your cargo vessel must have a fire detection system?（）
单项选择题 Which precaution should be taken when testing a line throwing gun?（）
单项选择题 Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
