A.Fire ax
B.Flashlight
C.rigid helmet
D.Fresh air breathing apparatus
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A.Conducts electricity
B.Difficult to store
C.Large volume necessary to be effective
D.Ineffective in powdered metal fires
A.Bouncing a straight stream of water off the overhead to create spray effect
B.Spraying foam on a bulkhead and letting it flow down and over a pool of burning oil
C.Flooding a paint locker with CO2 and sealing the compartment
D.Cooling adjacent bulkheads with water to prevent the spread of the fire by conduction
A.Water
B.Foam
C.Dry chemical
D.Carbon Dioxide
A.Water foam
B.Dry chemical powder
C.Water fog
D.Alcohol foam
A.Manual fire detection system
B.Automatic fire detection system
C.Smoke detection system
D.Watchman's supervisory system
最新試題
Which action is routinely performed at the annual servicing and inspection of a dry-chemical cartridge-operated portable fire extinguisher?（）
Which characteristic is an advantage of Halon as a fire extinguishing medium?（）
Which is a disadvantage of Halon as a fire extinguishing medium?（）
When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard，which of the following is the best source for determining what is required?（）
When possible，what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?（）
Where foam extinguishing systems are provided on a ship，each machinery flat in the protected space must have a(n)（）.
When using a high-velocity fog stream in a passageway，the possibility of a blow back must be guarded against. Blow back is most likely to occur when（）.
Which extinguishing agent is recommended in the Chemical Data Guide for use on a carbon disulfide fire?（）
When should a fire be ventilated?（）
When towing astern what equipment should be stowed ready for use near the towline?（）