Question 82Safety & Environmental - 1st Asst/Chief

The correct answer is C) Carbon dioxide. Carbon dioxide (CO2) fire extinguishers are typically recharged in a shore facility because they require specialized equipment and training to recharge properly. The CO2 gas must be refilled, and the extinguisher's internal parts inspected and maintained by a qualified technician. This is not something that can be easily done on board a vessel. The other options are incorrect because water (cartridge-operated) and dry chemical (cartridge-operated) extinguishers can often be recharged on board by the vessel's crew, while water (pump tank) extinguishers are typically not rechargeable and must be replaced when discharged.