Question 1 of 27070
Q
A gas turbine engine is experiencing a high rate of corrosion in the hot section of the engine. Which of the following fuel contamination issues could be associated with this problem?
A
High ash content in the fuel.
B
High particle content in the fuel.
C
Low pour point of the fuel.
D
High saltwater content in the fuel.
Question 1 / 270705eccef9fbacbc34ba4d46bc1
Question 1 of 270705eccef9fbacbc34ba4d46bc1

A gas turbine engine is experiencing a high rate of corrosion in the hot section of the engine. Which of the following fuel contamination issues could be associated with this problem?

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Question 1 of 27070
Q

A gas turbine engine is experiencing a high rate of corrosion in the hot section of the engine. Which of the following fuel contamination issues could be associated with this problem?

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🔍 Key Concepts

• Effects of fuel-borne contaminants on gas turbine hot-section components • Difference between erosion, deposit formation (slagging/fouling), and corrosion • Role of salts and combustion products at high temperature in attacking turbine blades and nozzles

💭 Think About

• Ask yourself which contaminant is most likely to form chemically reactive compounds at turbine temperatures that attack metal surfaces, rather than just physically erode them. • Think about which contamination would still be present as a vapor or molten deposit in the hot section, capable of reacting with metal alloys, instead of remaining as solid particles. • Consider which option is commonly associated with "hot corrosion" in marine gas turbines operating in coastal or sea environments.

✅ Before You Answer

• Identify which option is directly tied to sodium or other salts that can lead to hot corrosion when burned. • Eliminate any options that mainly cause mechanical wear (erosion) rather than chemical attack on metals. • Eliminate options related to low-temperature fuel properties that do not significantly affect the hot section’s corrosion behavior.