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A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when ______.
A.using a 2-1/2 inch hose
B.there is an outlet for the smoke and heat
C.the fire is totally contained by the ship’s structure
D.at least two fog streams can be used
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更多 “ A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when ______.A.using a 2-1/2 inch hoseB.there is an outlet for the smoke and heatC.the fire is totally contained by the ship’s structureD.at least two fog streams can be used ” 相关考题
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