Deck : Safety - 826/2841
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| A portable dry chemical fire extinguisher discharges by __________. |
| A) pressure from a small CO2 cartridge on the extinguisher |
| B) gravity when the extinguisher is turned upside down |
| C) air pressure from the hand pump attached to the extinguisher |
| D) pressure from the reaction when water is mixed with the chemical |
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