单项选择题

Which one is true as regards to the hard hat according to the passage?（）

A.It needs not to be regularly replaced
B.It is designed to protect from possible impact
C.It is required to be worn on deck at all times by all ships
D.fibreglass hardhat should not be used on board ships

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热门试题

单项选择题Which one is not important for your safety on board ship?（）

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