Question

Which of the following are included in a typical turbine engine ignition system?

1. Two igniter plugs.
2. Two transformers.
3. One exciter unit.
4. Two intermediate ignition leads.
5. Two low-tension igniter leads.
6. Two high-tension igniter leads.

Answer 1

A typical turbine engine ignition system includes two igniter plugs, one exciter unit, and two high-tension igniter leads. Transformers and low-tension igniter leads are not standard parts of turbine engine ignition systems. Option 1 is the correct answer.

Step-by-step explanation:

In identifying the components typically included in a turbine engine ignition system, we have to consider the function of each part within the system. The purpose of the ignition system in a turbine engine is to provide the spark that ignites the fuel-air mixture in the combustion chamber, which then drives the turbine.

A standard turbine engine ignition system typically includes:

1. Two igniter plugs - These are essential for sparking and igniting the fuel-air mixture.
2. Transformers - These are not typically part of the ignition system directly; they are more associated with the electrical systems that handle power transmission and distribution.
3. One exciter unit - This device steps up the voltage from the electrical system to the sufficient level needed to generate a spark at the igniter plugs.
4. Intermediate ignition leads - These carry the electrical power from the exciter unit to the igniter plugs.
5. Low-tension igniter leads - These carry low voltage currents, which are less common in turbine engines as they generally require high-tension leads to handle the high voltages required for ignition.
6. Two high-tension igniter leads - These are the necessary cables that carry the high voltage current from the exciter to the igniter plugs.

Considering the common components of a turbine engine ignition system, the correct option answer includes: 1. Two igniter plugs, 3. One exciter unit, and 6. Two high-tension igniter leads.