单项选择题
A.used for electrical fires only B.the smallest C.the most accessible D.the most effective
Fire extinguishers of sizes III，IV，and V are designated...
单项选择题Fire extinguishers of sizes III，IV，and V are designated as（）.
A.portable B.semi-portable C.fixed D.disposable
Fire and abandon ship stations and duties may be found ...
单项选择题Fire and abandon ship stations and duties may be found on the（）.
A.crewman's duty list B.Certificate of Inspection C.shipping articles D.muster list
Fire alarm system thermostats are actuated by（）.A.smoke...
单项选择题Fire alarm system thermostats are actuated by（）.
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
