单项选择题
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
Except in rare cases，it is impossible to extinguish a s...
单项选择题Except in rare cases，it is impossible to extinguish a shipboard fire by（）.
A.removing the heat B.removing the oxygen C.removing the fuel D.interrupting the chain reaction
Control valves of a CO2 system may be located within th...
单项选择题Control valves of a CO2 system may be located within the protected space when（）.
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
