A、erosion
B、corrosion
C、cavity
D、scouring
更多“A (n) （） is a chemical or electro-chemical attack on the metal surface which may be further increased if the sea-water is polluted.”相关的问题
A、corrosive B、class B poison C、oxidizer D、explosive
A、chemical ignition B、spontaneous combustion C、chemical combustion D、radiation ignition
A、Alcohol foam B、Dry chemical C、Chemical foam D、Water fog
A、A.is not an effective agent on Class B fires B、B.does little or no cooling C、C.dissipates quickly D、D.is rapidly absorbed by the liquid
A、Foam B、Carbon dioxide C、Dry chemical D、Water fog
A、Insure the chemical is powdery B、Replace the cartridge C、Pressure test the discharge hose D、Test the pressure gauge for proper operation
A、gravity when the extinguisher is turned upside down B、pressure from a small CO2 cartridge on the extinguisher C、air pressure from the hand pump attached to the extinguisher D、pressure from the reaction when water is mixed with the chemical
A、gravity when the extinguisher is turned upside down B、pressure from a small CO2 cartridge on the extinguisher C、air pressure from the hand pump attached to the extinguisher D、pressure from the reaction when water is mixed with the chemical
A、foam or soda acid B、dry chemical or foam C、carbon dioxide or dry chemical D、carbon dioxide or foam
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