A.closing the compartment except for the ventilators
B.completely closing the compartment
C.leaving the compartment open to the air
D.increasing the air flow to the compartment by blowers
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A.salt water and a wire brush
B.caustic soap
C.mild soap and fresh water
D.a holystone
A.are made of bronze,brass,or soft alloy metals
B.should be painted red in order to identify hose lengths
C.are specially hardened to prevent crushing
D.should be greased frequently
A.4Certificate of Inspection
B.Certificate of Seaworthiness
C.Classification Certificate
D.Certificate of Registry
A.able to absorb heat
B.water based
C.nonconducting
D.nontoxic
A.used for electrical fires only
B.the smallest
C.the most accessible
D.the most effective
A.portable
B.semi-portable
C.fixed
D.disposable
A.crewman's duty list
B.Certificate of Inspection
C.shipping articles
D.muster list
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
最新试题
Foam extinguishes a fire by().
Fire hose couplings().
Good housekeeping on a vessel prevents fires by().
Foam-type portable fire extinguishers are most useful in combating fires involving().
Fire alarm system thermostats are actuated by().
Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by().
Halon from extinguishers used on a class B fire,should be directed().
Fixed CO2 systems would not be used on crew’s quarters or().
Fire hose should be washed with().
CO2 cylinders,which protect the small space in which they are stored must().