What is the purpose of the dump valve used on aircraft gas turbine engines?

• A. The valve controls compressor stall by dumping compressor bleed air from the compressor discharge port under certain conditions
• B. Maintains minimum fuel pressure to the engine fuel control unit inlet and dumps excessive fuel back to the inlet of the engine-drive fuel pump
• C. The fuel is quickly cut off to nozzles and the manifolds are drained preventing fuel boiling off as result engine heat
• D. The valve acts as a relief valve for fuel lines during overheating

Answer: (C)