AMP - Aviation Maintenance Technician Powerplant Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Aviation Maintenance Technician Powerplant Exam with comprehensive flashcards and multiple choice questions. Equip yourself with detailed explanations and tips to succeed.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Why do igniter plugs used in turbine engines have a long service life?

They have a high intensity spark.
They operate continuously with a lower spark.
They do not require continuous operation.
Their design significantly reduces electrode erosion.

The correct answer is: They do not require continuous operation.

Igniter plugs used in turbine engines have a long service life because they do not require continuous operation. Unlike spark plugs in other engines, igniter plugs only need to activate during startup and then are not needed during normal engine operation. This significantly reduces wear and tear on the electrode and extends the overall life of the igniter plug. Options A, B, and D may seem plausible, but they do not provide a complete explanation for the long service life of igniter plugs used in turbine engines. Option A mentions a high intensity spark, but this alone does not ensure a long service life. Option B mentions continuous operation, but as previously stated, igniter plugs do not need to operate continuously. Option D mentions design, but without the factor of not needing continuous operation, design alone would not be enough to ensure a long service life.