Question 3795 Deck General

The correct answer is C) 12 months. According to the regulations governing Mobile Offshore Drilling Units (MODUs), cartridge-operated dry chemical extinguishers must have their propellant cartridges weighed every 12 months. This is to ensure the extinguishers are properly charged and ready for use in an emergency. The other options are incorrect because 3 months (A) and 6 months (B) are too frequent, while 2 years (D) is too infrequent for the required maintenance of these types of extinguishers on MODUs.