Practice question

How does a driver verify that a dry powder fire extinguisher is in normal operating condition during daily vehicle inspection?

Check that the pressure gauge pointer is in the GREEN zone (绿色区域), the safety pin and tamper seal are intact, and the nozzle is unobstructed
Check that the pressure gauge is in the RED zone indicating maximum charge
Discharge the entire extinguisher onto the tire to test spray pressure
Shake the extinguisher until the pressure gauge needle spins around completely

Answer: A — Check that the pressure gauge pointer is in the GREEN zone (绿色区域), the safety pin and tamper seal are intact, and the nozzle is unobstructed

The correct answer is shown above. Try the full quiz for additional practice.