What is the purpose of ignitor plugs?

Get ready for the Aviation Machinist Mate AD Week 1 Test. Use our multi-choice questions with explanations for each query. Set a solid foundation for your aviation career!

Multiple Choice

What is the purpose of ignitor plugs?

Explanation:
Ignition systems must provide a reliable spark to start combustion in the burner. The ignitor plug serves that function by creating the air gap through which a high-energy spark jumps, delivering the energy needed to ignite the fuel–air mixture in the combustion chamber. It receives timed pulses from an ignition exciter and must withstand the harsh burner environment during start and relight. This plug isn’t involved in metering fuel, measuring pressure, or cooling the blades—the roles of fuel control, sensors, and cooling systems. So, its purpose is to provide the air gap for a high-energy spark to ignite the fuel/air mixture.

Ignition systems must provide a reliable spark to start combustion in the burner. The ignitor plug serves that function by creating the air gap through which a high-energy spark jumps, delivering the energy needed to ignite the fuel–air mixture in the combustion chamber. It receives timed pulses from an ignition exciter and must withstand the harsh burner environment during start and relight. This plug isn’t involved in metering fuel, measuring pressure, or cooling the blades—the roles of fuel control, sensors, and cooling systems. So, its purpose is to provide the air gap for a high-energy spark to ignite the fuel/air mixture.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy