Question 30Gas Turbine - 1st Asst/Chief
70% to passIf 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?
ACooling water to the enclosure would be secured.
BIf open, bleed air valves would be closed.
CWater wash valves to the engine would be opened.
DReduction gear oil systems would be secured.
AI Explanation
The correct answer is B) If open, bleed air valves would be closed. In the event of a fire detected in a main propulsion gas turbine enclosure, the first action prior to the automatic release of the fire extinguishing agent would be to close any open bleed air valves. This helps to contain the fire and prevent the further spread of the flames by cutting off the air supply to the enclosure. The other answer choices, such as securing cooling water, opening water wash valves, or securing reduction gear oil systems, are not the immediate steps taken before the fire suppression system is activated.
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