Which device is designed to prevent ignition in engine compartments and exhaust systems?

Which device is designed to prevent ignition in engine compartments and exhaust systems?

• A. Backfire Flame Arrestor
• B. Bilge pump
• C. Fire extinguisher
• D. Ventilation hatch

Answer: (A)

Backfire flame arrestor is designed to prevent ignition in engine compartments and exhaust systems. It works by trapping and cooling any flame that might backfire through the intake or exhaust, so sparks or flames can’t reach fuel vapors in the engine space. The metal elements in the arrestor quench the flame and block it from propagating into the boat’s ventilation or exhaust areas. That targeted function is why this device is the right choice for preventing ignition. The other options don’t serve this purpose: a bilge pump removes water, a fire extinguisher fights a fire after it starts, and a ventilation hatch helps air flow but doesn’t stop ignition from backfires.

Backfire flame arrestor is designed to prevent ignition in engine compartments and exhaust systems. It works by trapping and cooling any flame that might backfire through the intake or exhaust, so sparks or flames can’t reach fuel vapors in the engine space. The metal elements in the arrestor quench the flame and block it from propagating into the boat’s ventilation or exhaust areas. That targeted function is why this device is the right choice for preventing ignition. The other options don’t serve this purpose: a bilge pump removes water, a fire extinguisher fights a fire after it starts, and a ventilation hatch helps air flow but doesn’t stop ignition from backfires.