航海英语应急部署章节练习(2017.10.05)

单项选择题
To determine if a CO2 fire extinguisher is fully charged，you would（）.
A.Operate the trigger valve
B.Weigh the extinguisher
C.Test with a pressure gauge
D.Read the date of last test
单项选择题
What is the MOST important consideration when determining how to fight an electrical fire?（）
A.Whether the fire is in machinery or passenger spaces
B.Danger of shock to personnel
C.The amount of toxic fumes created by the extinguisher
D.Maintaining electrical power
单项选择题
Ventilation systems connected to a compartment in which a fire is burning are normally closed to prevent the rapid spread of the fire by（）.
A.convection
B.conduction
C.radiation
D.spontaneous combustion
单项选择题
What is best suited for fighting a fire in a ballast control room?（）
A.Automatic sprinkler system
B.Steam smothering system
C.Dry chemical system
D.Carbon dioxide system
单项选择题
Traditionally，the signal for fire aboard ship is（）.
A.more than 6 short blasts and 1 long blast on the whistle，and the same signal on the general alarm
B.continuous sounding of the ship's whistle and the general alarm for at least 10 seconds
C.1 short blast on the whistle
D.alternating short and long blasts on the ship's whistle
单项选择题
The record of tests and inspection of fire fighting equipment on board a ship must include（）.
A.the name of the person conducting the test
B.the weight of the charge
C.recommendations for the next test
D.All of the above
单项选择题
To prevent the spread of fire by conduction you should（）.
A.cool the bulkheads around the fire
B.remove combustibles from direct exposure
C.close all openings to the area
D.shut off all electric power
单项选择题
Weight is considered during the periodic required inspection and servicing of（）.
A.CO₂ (carbon dioxide) fire extinguishers
B.foam fire extinguishers
C.water (stored pressure) fire extinguishers
D.All of the above
单项选择题
What are the most important reasons for using water fog to fight fires?（）
A.Smothers burning surfaces，organically destroys fuel
B.Cools fire and adjacent surfaces，provides protective barrier
C.Reaches areas not protected by steam or CO₂ smothering systems
D.Allows fire to be attacked from leeward，saturates liquid surfaces
单项选择题
Triethylene glycol fires may be extinguished by（）.
A.dry chemical
B.alcohol foam
C.carbon dioxide
D.All of the above