What is the most common type of spark...

Question 1 / 270705eccef9fbacbc34ba4d46b5a

Question 1 of 270705eccef9fbacbc34ba4d46b5a

What is the most common type of spark igniter used on a gas turbine engine?

Question 1 of 27070

What is the most common type of spark igniter used on a gas turbine engine?

🔍 Key Concepts

• Types of spark igniters used in gas turbine combustion chambers • Why a particular igniter shape or design gives good flame propagation and reliability • Which design is common in aero and marine gas turbines for continuous, reliable ignition

💭 Think About

• Think about which igniter design gives the largest, most even spark exposure to the fuel-air mixture in the combustion can or annular combustor. • Consider which type is specifically designed to reduce plug fouling and provide a strong spark under high-pressure turbine conditions. • Ask yourself: which of these names is associated with a plug whose spark path goes around a ring or continuous gap rather than just jumping a point-to-point gap?

✅ Before You Answer

• Match each option’s name to the physical spark path it suggests (point-to-point vs. ring-shaped/continuous). • Recall from turbine theory or classroom notes which igniter type is described as standard or most widely used in modern gas turbines. • Eliminate any options that sound more like special-purpose designs (e.g., for noise suppression or delayed firing) rather than general-use, common designs.

Question 1 of 27070

What is the most common type of spark igniter used on a gas turbine engine?

Delayed gap

Suppression gap

Resistive gap

Annular gap