It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)
Most foams can be used with dry chemicals to attack a fire by two methods
Foam is effective on combustible metal fires
Foam can be made with seawater or fresh water
第1题:
A foam-type portable fire extinguisher is most useful in fighting a fire in ______.
A.generators
B.oil drums
C.the bridge controls
D.combustible metals
第2题:
Where do you post your ()(火势控制图)?
第3题:
The BEST method of applying foam to a fire is to ______.
A.spray directly on the base of the fire
B.flow the foam down a nearby vertical surface
C.sweep the fire with the foam
D.spray directly on the surface of the fire
第4题:
turning it upside down
pressing the foam lever
squeezing the grip handle
opening the hose valve
第5题:
What is the biggest advantage of using Web services to create SOA solutions?()
第6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
第7题:
Chief, the ()(灭火队)is ready.
第8题:
what is your position (station ) in the muster lists ,for example ,during the fire fighting ,abandon vessel ,oil pollution prevention etc ?
第9题:
Shutting off electricity to damaged cables
Pumping fire-fighting water overboard
Maneuvering the vessel so the fire is on the lee side
Removing burned debris from the cargo hold
第10题:
generators
oil drums
the bridge controls
combustible metals