A.crewman's duty list
B.Certificate of Inspection
C.shipping articles
D.muster list
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A.smoke sensors
B.the difference in thermal expansion of two dissimilar metals
C.pressure loss due to air being heated
D.an electric eye which actuates when smoke interferes with the beam
A.removing the heat
B.removing the oxygen
C.removing the fuel
D.interrupting the chain reaction
A.it is impractical to locate them outside
B.there is also a control valve outside
C.the CO2 cylinders are also in the space
D.an automatic heat-sensing trip is installed
A.NOT contain more than 200 pounds of CO2
B.be automatically operated by a heat actuator
C.have an audible alarm
D.All of the above
A.the discharge valve is open
B.the control box glass is broken
C.pressure from the control cylinders is detected
D.the control cylinders have been completely discharged
最新試題
Halon from extinguishers used on a class B fire,should be directed().
CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when().
Foam is a very effective smothering agent and().
Fusible-link fire dampers are operated by().
Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by().
Flame screens are used to().
Control valves of a CO2 system may be located within the protected space when().
Fire extinguishing agents used on Class C fires must be().
High-velocity fog().
Generally,the first action in extinguishing an LFG fire caused by escaping gas is to().