When is it required to exchange the vehicle’s fire extinguisher?
- Every other annual test, meaning once every two years.
- Correct answer: When it was fully or partially used, or when its pressure gauge indicates low internal pressure.
- Every year, before the vehicle’s annual test.
- When you cannot hear the material moving inside the fire extinguisher.
Why this is the answer
The correct answer in the official bank: When it was fully or partially used, or when its pressure gauge indicates low internal pressure.
A fire extinguisher must be ready to work fully at any moment. Once it has been used, even partly, it no longer holds enough pressure and agent, so it must be replaced or refilled. The pressure gauge shows its condition, and a needle in the low zone means it may fail. Replacement does not depend on the annual test, and listening for movement inside is not a valid check.