Engine Gas Turbines (Supplementary) USCG Question #109 (Set 4)

What is the primary purpose of the diffuser and distributor on the LM2500 GTE?

Official USCG Answer & Rule Citation

Correct Answer: Option C — To provide uniform airflow to the combustor

The diffuser and distributor assembly is critical for managing the high-velocity air exiting the compressor. Its primary function is to reduce air velocity and increase static pressure, ensuring a uniform, stable airflow into the combustor section. This uniformity is essential for efficient combustion and preventing localized hot spots in the turbine.

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