Prepare for the First Responder Inspector Test. Utilize sample tests, detailed explanations, and interactive flashcards to boost your confidence and knowledge. Get exam-ready!

Multiple Choice

What would the type of fire extinguisher that can handle the largest Class A fire be rated?

Class A ratings on extinguishers show how much ordinary combustibles fire they can handle, based on a standardized water test. The number reflects the area, in square feet, that the extinguisher can control in that test; higher numbers mean a larger fire can be tackled. Among common portable extinguishers, 40-A is the largest standard Class A rating. The option with the 40-A rating represents the greatest capacity for Class A fires. Ratings like 1-A correspond to much smaller fires, and 80-A or 100-A aren’t standard ratings for portable extinguishers, so they don’t indicate a larger tested range. In short, 40-A shows the largest typical Class A capability.

Class A ratings on extinguishers show how much ordinary combustibles fire they can handle, based on a standardized water test. The number reflects the area, in square feet, that the extinguisher can control in that test; higher numbers mean a larger fire can be tackled. Among common portable extinguishers, 40-A is the largest standard Class A rating. The option with the 40-A rating represents the greatest capacity for Class A fires. Ratings like 1-A correspond to much smaller fires, and 80-A or 100-A aren’t standard ratings for portable extinguishers, so they don’t indicate a larger tested range. In short, 40-A shows the largest typical Class A capability.