Practice question

What is the proper method for inspecting an onboard dry powder fire extinguisher during routine vehicle safety maintenance?

  1. Spray out half the powder onto the ground to see if it works
  2. Verify that the pressure gauge pointer is in the green zone, check that the safety pin and lead seal are intact, inspect the nozzle for blockages, and ensure the cylinder is within its validity period
  3. Paint over the pressure gauge with red paint
  4. Store the extinguisher underneath heavy engine components

Answer: B — Verify that the pressure gauge pointer is in the green zone, check that the safety pin and lead seal are intact, inspect the nozzle for blockages, and ensure the cylinder is within its validity period

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