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
您可能感興趣的試卷
你可能感興趣的試題
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
A.lifejacket
B.SCBA
C.lifeboat
D.torch
A.Life jackets
B.Survival at Sea manual
C.lifeboat
D.torch
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
A.soda acid
B.foam
C.CO2
D.sand
最新試題
The condensers located in various stages of a flash evaporator are cooled by（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Under MARPOL Code the ship to which it applies has to carry （）
The main purpose of port State control is not to（）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.