1. What is the purpose of the dump valve used on aircraft gas turbine engines? A. The fuel is quickly cut off to the nozzles and the manifolds are drained preventing fuel boiling off as a result of residual engine heat. B. The valve controls compressor stall by dumping compressor bleed air from the compressor discharge port under certain conditions. C. Maintains minimum fuel pressure to the engine fuel control unit inlet and dumps excessive fuel back to the inlet of the engine-driven fuel pump.