Question 3816 Deck General

The correct answer is C) annually. According to the regulations for CO2 fixed fire extinguishing systems, the cylinders must be weighed annually to confirm they are within 10% of the stamped full weight of the charge. This is specified in 46 CFR 147.60(d), which requires "each CO2 cylinder to be weighed annually" to ensure the proper amount of extinguishing agent is present. The other options are incorrect because quarterly (A) and semiannual (B) inspections are more frequent than the annual requirement, while biannual (D) is less frequent than the annual requirement.