航海英语探火与消防设备章节练习(2018.02.26)

单项选择题
An engine compartment gasoline fire requires which type of extinguisher?（）.
A.Carbon dioxide
B.Dry chemical
C.Foam
D.All of the above
单项选择题
A spring line is（）.
A.any wire rope used for mooring
B.a fire-warp
C.a mooring line running diagonally to the keel
D.a mooring line perpendicular to the keel
单项选择题
An important step in fighting any electrical fire is to（）.
A.stop ventilation
B.stop the vessel
C.de-energize the circuit
D.apply water to extinguish the fire
单项选择题
A fire starts on your vessel while refueling. You should FIRST（）.
A.stop the ventilation
B.sound the general alarm
C.determine the source of the fire
D.attempt to extinguish the fire
单项选择题
An inert gas system on a tanker should be used to（）.
A.prevent the generation of flammable or combustible gas in tanks
B.blow out cargo lines to prevent gas concentrations
C.dilute tank atmospheres to keep gas concentrations below the lower explosive limit
D.prevent fires in the pumproom by continually displacing flammable vapors
单项选择题
A ship helicopter landing deck on which fueling operations are conducted must have a fire protection system that is capable of discharging at 100 psi pressure a foam spray of at least（）.
A.30 gallons per minute
B.40 gallons per minute
C.50 gallons per minute
D.60 gallons per minute
单项选择题
As compared to carbon dioxide，dry chemical has which advantage?（）.
A.Cleaner
B.Effective on metal fires
C.Greater range
D.More cooling effect
单项选择题
A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.
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%
单项选择题
An ABC dry chemical fire extinguisher would be LEAST effective against a fire in（）.
A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can
单项选择题
An advantage of a dry chemical over a carbon dioxide fire extinguisher is its（）.
A.greater range
B.effectiveness on all types of fires
C.cleanliness
D.All of the above