A.glycerine
B.graphite
C.kerosene
D.fresh water and soap
您可能感興趣的試卷
你可能感興趣的試題
A.Operate the trigger valve
B.Weigh the extinguisher
C.Test with a pressure gauge
D.Read the date of last test
A.ventilate the quarters as much as possible
B.prepare to abandon ship
C.close all ventilation to the quarters if possible
D.attempt to put the fire out yourself before sounding the alarm
A.put the wind off either beam
B.head the bow into the wind and decrease speed
C.put the stern into the wind and increase speed
D.put the stern into the wind and decrease speed
A.the lack of cooling effect on heated materials
B.that it cannot be used in a dead ship situation with no electrical power to the CO2 pump
C.that it breaks down under extreme heat to form poisonous gases
D.there is no effect on a class A fire even in an enclosed space
A.pump from the damaged tank
B.fight a fire
C.abandon the rig
D.use the crossover system
最新試題
The straight stream capability of an all-purpose nozzle is used in fighting a class A fire to（）.
What are the most important reasons for using water fog to fight fires?（）
The spread of fire is NOT prevented by（）.
What is the most important characteristic of the extinguishing agent in fighting a class C fire?（）
To lubricate the swivel or remove corrosion from a fire hose coupling，you should use（）.
What is meant by the term overhaul in firefighting?（）
The spread of fire is prevented by（）.
Water fog from an all-purpose nozzle may be used to（）.
The sprinkler system of a survival craft is used to（）.
There are two disadvantages to CO2 pump as a firefighting agent. One of these is the limited quantity available，and the other is（）.