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To extinguish an electrical fire, you should use _____.

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harder it is to extinguish  easier it is to extinguish  less chance there is of re-ignition  easier it is to control  
generate its own electrical power  transform electrical energy into mechanical energy  increase or decrease circuit voltage as required  convert AC current to DC current  
notify the engineer on watch  isolate and secure the piping  throw sand on the fire  extinguish the fire using a combination nozzle with applicator  
have little or no electrical resistance.  can be used for a long time.  are not energy-efficient.  can be made easily.  
extinguish    prevent    suppress    ruin  
class A  class B  class C  class D  
extinguish    prevent    suppress    ruin  
exclude    eliminate    extinguish    impose  
electrical; electric    electrical; electrical    electric; electrical    electronic; electric  
cancel  omit  extinguish  erase  
removing the heat  removing the oxygen  removing the fuel  interrupting the chain reaction  
the "snow" which is sometimes discharged along with the gas is toxic  prolonged exposure to high concentrations of C02 gas causes suffocation  rapid dissipation of the CO2 vapor  the CO2 gas is lighter than air and a large amount is required to extinguish a firenear the deck  
there might be an invisible injury deeper inside the body.  many Americans die each year from electrical burns.  lightning is too much for a person to endure.  electrical bums will always lead to serious injury inside the body.  
take no measures  extinguish the fire as soon as possible  feed water to the boiler  open the blow down valve  
exclude    eliminate    extinguish    impose  
Any one component can be eliminated to extinguish a fire  Any two components must be eliminated to properly extinguish a fire  Any three components must be eliminated to properly extinguish a fire  Ali four components must be eliminated to extinguish any fire  
begin  support  last  extinguish  
electrical signals must first be changed' into light signals and then into sound  the light signals have to be changed directly into sound  light must first be changed into electrical signals and then into sound  neither the light nor the electrical signals have to be changed in any way  

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