Question 3591 Deck General

The correct answer is C) 40 persons. According to the regulations, a qualified person must be assigned as the second in command of a lifeboat on a MODU (Mobile Offshore Drilling Unit) if the lifeboat has a capacity of more than 40 persons. This requirement is specified in the Coast Guard regulations for lifeboats on MODUs. The other options are incorrect because a second in command is not required for lifeboats with capacities of 20 persons (A), 30 persons (B), or 50 persons (D). The threshold for requiring a second in command is specifically set at a lifeboat capacity of more than 40 persons.