Question 31Gas Turbine - 1st Asst/Chief70% to pass
On the marine gas turbine engine shown in the illustration, what temperature should be carefully monitored following a shutdown for an engine fire? Illustration GT-0017
AI Explanation
The correct answer is A) power turbine inlet.
Following a shutdown due to an engine fire, the power turbine inlet temperature should be carefully monitored. This is because after a fire, the power turbine inlet temperature may remain elevated even after the engine has been shut down. Monitoring this temperature helps ensure the turbine rotor has cooled sufficiently before attempting any maintenance or inspection, which is critical for safety.
The other options are incorrect because the fuel manifold, combustor liner, and compressor discharge are not the critical temperatures that need to be monitored after a shutdown for an engine fire. The power turbine inlet is the key temperature that must be carefully observed in this scenario.
Related Questions
#29 On a ship with a marine gas turbine as shown in the illustration, a fire emergency stop is initiated when _______________. Illustration GT-0017#30 If a fire is detected in a main propulsion gas turbine enclosure, which of the following would occur prior to automatic release of the fire extinguishing agent? #32 A total of how many shock mounts are used to secure the LM2500 enclosure to the ship's foundation? #33 What is the primary purpose of the diffuser and distributor on the GE LM2500 gas turbine engine? #34 What is the purpose of the GE LM2500 gas turbine enclosure heater?