A.know where the lifejacket is stowed B.know where the life-saving craft are fitted on the ship C.know the escape routes D.Good professional knowledge
单项选择题Which one might be used most likely in case of a fire?（）
A.lifejacket B.SCBA C.lifeboat D.torch
单项选择题Which one is not the personal safety equipment?（）
A.Life jackets B.Survival at Sea manual C.lifeboat D.torch
单项选择题Water is a very effective fire extinguishing agent because it（）
A.will remove all the toxic fumes from the air B.has the greatest cooling ability C.will leave no harmful residue D.completely removes combustible vapors from the air
单项选择题A large oil fire is best extinguished with（）
A.soda acid B.foam C.CO2 D.sand
单项选择题Fires in escaping flammable gas are quickly brought under control by（）
A.stopping the flow of gas B.reducing the chemical chain reaction C.increasing the oxygen supply D.cooling below the autoignition point
