更多"You will extinguish a fire when you"的相关试题:
[单项选择]To extinguish an electrical fire, you should use （）.
A. mechanical foam
B. chemical foam
C. carbon dioxide
D. soda acid
[单项选择]Removing which will extinguish a fire?（）.
A. nitrogen
B. Carbon dioxide
C. Sodlium
D. Oxygen
[单项选择]Dry chemical extinguishers extinguish class B fires to the greatest extent by（）.
A. cooling
B. smothering
C. oxygen dilution
D. breaking the chain reaction
[单项选择]When fighting an electrical fire, you should first （）.
A. stop ventilation to the area
B. stop the vessel
C. secure electricity to the circuit
D. apply CO2 to the fire
[单项选择]How does foam extinguish an oil fire?（）.
A. By cooling the oil below the ignition temperature
B. By removing the fuel source from the fire
C. By excluding the oxygen from the fire
D. By increasing the weight of the oil
[单项选择]On a class “B” fire，which portable fire extinguisher would be the LEAST desirable?（）
A. Carbon dioxide
B. Water (stored pressure)
C. Dry chemical
D. Foam
[单项选择]When approaching a fire from win ward, you should shield firefighters from the fire by using（）
A. low-velocity fog
B. high-velocity fog
C. a straight stream of water
D. foam spray
[填空题]It is
when
you nearly lose someone
when
you become
fully
conscious of how much you value
them
.
[单项选择]What parameters must you specify when you enable EIGRP routing?（）
A. The broadcast address, and AS number
B. The network number and AS number
C. EIGRP routing, network number and passive interface
D. EIGRP routing, network number, and AS
[单项选择]You are standing the wheelwatch when you hear the cry，“Man overboard starboard side”.You should instinctively（）.
A. Give full right rudder
B. Give full left rudder
C. Put the rudder amidships
D. Throw a life ring to mark the spot
[单项选择]When you read the sailing directions, you should notice that this is one of a series of publications produced by the（）which should be consulted by users of Admiralty Charts.
A. UK Hydrographic Office
B. IMO
C. International Hydrographic Organization
D. International Association of Classification society
[单项选择]When you go to the doctor he asks you to describe your（）so that he can make a diagnosis (诊断).
A. indications
B. signs
C. symbols
D. symptoms
[单项选择]You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel.You should（）.
A. cross the channel as you are the stand-on vessel
B. cross only if the vessel in the channel is approaching on your port side
C. not cross the channel if you might impede the other vessel
D. sound the danger signal
[单项选择]You（）buy some reference books when you go to college.
A. could
B. will have to
C. must to
D. might
[单项选择]No matter how old you are, when you go out into the world, it（）to hold hands and stick together.
A. would better
B. had better
C. be better
D. is better
[单项选择]When two fire hose teams are attacking a fire they should（）.
A. use different fire hose pressures
B. use fire hoses of different sizes
C. not attack the fire from opposite sides
D. not wear protective clothing
[单项选择]A fire starts on you 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
