A.electricity
B.fuel
C.oxygen
D.heat
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A.opened and burned material removed
B.left closed with vents off until all boundaries are cool
C.checked for oxygen content
D.doused with water to prevent reflash
A.use all CO2 available to cool the surrounding area
B.stand by with water or other agents
C.thoroughly ventilate the space of CO2
D.jettison all burning materials
A.Electrical cut off switch
B.A fusible link
C.Manual cut off switch
D.A water spray actuator
A.The aluminum will provide greater resistance to the spread of fire by conduction
B.The aluminum structure is usually attached to a steel coaming by a method that insulates the two metals
C.If the superstructure is stressed，an aluminum structure requires additional expansion joints to prevent fracture
D.The steel at the area of the aluminum-to-steel connection must be closely checked for galvanic corrosion
A.labeled empty and recharged as soon as possible
B.replaced in its proper location if weight loss is no more than 25%
C.replaced in its proper location regardless of weight
D.replaced in its proper location if weight loss is no more than 15%
最新試題
A spring line is（）.
A marine chemist issues gas free certificates and is certified by the（）.
An inert gas system is designed to reduce the possibility of tank explosions by（）.
A large oil fire on the deck of a ship can be fought most effectively with（）.
At the required fire drill conducted aboard a ship，all persons must report to their stations and demonstrate their ability to perform the duties assigned to them（）.
A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.
A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?（）
An inert gas system on a tanker should be used to（）.
Any firefighting equipment that is carried in addition to the minimum required must（）.
A passenger vessel is required to have a supervised patrol when（）.