A.Conduction of heat to adjacent surfaces B.Direct radiation C.Convection D.All of the above
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.CO2 B.fresh air C.the tested compartment's air D.water
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
A.Point the horn down B.Turn cylinder upside-down C.Break the rupture disc D.Pull pin，squeeze grip
