A.Cleaner B.Effective on metal fires C.Greater range D.More cooling effect
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.two or more releasing stations B.automatic release in event of a fire C.an audible alarm and time delay D.an audible and visible alarm
A.it provides cooling as a secondary effect B.works well on extinguishing electrical fires C.can be used to combat combustible metal fires D.All of the above
A.any wire rope used for mooring B.a fire-warp C.a mooring line running diagonally to the keel D.a mooring line perpendicular to the keel
