PART 66 EXAMPLE QUSTIONS
Quiz
What is the purpose of the diffuser vanes in a centrifugal compressor:
- to convert pressure energy into kinetic energy
- to increase the temperature of the gas and improve vaporisation of the
fuel
- To convert kinetic energy into pressure energy
Compressor blades are designed to
- Provide a given pressure and velocity rise
- Provide a constant flow over the engine speed range
- Produce a steady pressure and velocity rise over the engine speed range
A compressor blade will stall when:
- Pressure, velocity and rotational speed relationships are disturbed
- When mass airflow and speed relationships are constant
- ‘When the gas flow through the turbine falls below 0.4Mach