Question 3731 Deck General

The correct answer is D) III, IV, and V. The explanation is as follows: 1) The correct answer is D, as the semi-portable extinguishers used on Mobile Offshore Drilling Units (MODU's) are sizes III, IV, and V. 2) This is based on the regulations in 46 CFR 108.491, which specify the requirements for semi-portable fire extinguishers on MODU's. The regulation states that semi-portable fire extinguishers must be either size III, IV, or V. 3) The other answer choices are incorrect because they do not fully cover the sizes of semi-portable extinguishers required for MODU's. Options A and B include sizes that are not specified in the regulations, while option C omits the smaller size III extinguishers.