航海英语消防用语单项选择题每日一练(2019.01.14)

单项选择题
After using a C02 portable extinguisher，it should be（）.
A.put back in service if some C0₂ remains
B.hydrostatically tested
C.retagged
D.recharged
单项选择题
The brickwork surrounding the firebox of a boiler is known as（）.
A.refractory
B.the screen wall
C.the water wall
D.fire plate
单项选择题
On a ship，a fire drill shall be conducted once every（）.
A.week
B.month
C.crew change
D.other week
单项选择题
Small quantities of flammable liquids needed at a work site should be（）.
A.used only under the supervision and direction of a ship's officer
B.tightly capped and stowed with other tools near the job site when securing at the end of the day
C.used only when a pressurized fire hose is laid out ready for immediate use
D.in a metal container with a tight cap
单项选择题
A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when（）.
A.using a 2-1/2 inch hose
B.there is an outlet for the smoke and heat
C.the fire is totally contained by the ship's structure
D.at least two fog streams can be used