On a MODU, an extinguisher with 15 lbs. of CO2 or 10 lbs. of dry chemical is a size __________.

Correct Answer: Option B — II

Under 46 CFR Table 108.495, portable fire extinguishers are classified by size and agent weight. A Size II semi-portable/portable extinguisher corresponds to 15 pounds of carbon dioxide (CO2) or 10 pounds of dry chemical. Size I extinguishers carry smaller agent quantities, whereas Sizes III, IV, and V represent larger semi-portable units.