🔍 Key Concepts

• Automatic auxiliary boiler combustion system components (fuel supply, ignition, flame detection) • How fuel quality (like presence of water) affects burner operation • The role of ignition electrodes and high-tension (high-voltage) leads in maintaining flame

💭 Think About

• Which problem would most directly cause the flame to go out or fail to establish, even if fuel is reaching the burner? • Which option describes a condition that would interfere with proper ignition spark versus one that affects fuel spray or pressure? • Think about which condition is most likely to result in intermittent or no ignition rather than just poor combustion quality.

✅ Before You Answer

• Identify which choices relate to ignition system failure versus fuel delivery/quality issues. • Consider whether full fuel pressure at the nozzle is normally desirable or inherently a malfunction. • Ask: which condition would prevent or disrupt the spark that lights the fuel-air mixture in an automatic boiler?