A.the "snow" which is sometimes discharged along with the gas is toxic
B.prolonged exposure to high concentrations of C02 gas causes suffocation
C.rapid dissipation of the C02 vapor
D.the C02 gas is lighter than air and a large amount is required to extinguisha fire near the deck
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A."A" fire
B."B" fire
C."C" fire
D."D" fire
A.Rose box
B.Sea chest or spool piece
C.Sluice valve
D.Fire pump stuffing box
A.class "A" fires
B.class "B" fires
C.class "C" fires
D.class "D" fires
A.Carbon dioxide
B.Carbon monoxide
C.Carbon trioxide
D.Hydrogen sulfide
A.at a maximum rate of two ounces per day
B.after mixing with an equal quantity of fresh water
C.if gather during or immediately after a hard rain
D.under no circumstance
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