Q01 Gas Turbines - Inlets Flashcards
Because the Air Intake is _______ the static pressure up to the Fan in a high bypass engine __________.
Select the correct two missing words.
a.Divergent, Increases
b.Convergent, Increases
c.Divergent, Decreases
d.Convergent, Decreases
a.Divergent, Increases
The Air Intake, ideally, must ensure that the airflow to the engine;
1. Is the correct quantity.
2. Is more than is necessary.
3. Is of low energy.
4. Has minimum energy loss
5. Has the required amount of turbulence to initiate stall.
6. Is uniform and free of turbulence.
7. Is delivered at a uniform pressure.
8. Is evenly distributed across the inlet area.
9. Causes minimum drag.
Select 6
a.1, 4, 6, 7, 8, 9
b.3, 4, 5, 6, 8, 9
c.1, 3, 4, 7, 8, 9
d.1, 2, 3, 4, 5, 6
a.1, 4, 6, 7, 8, 9
Air intakes are designed to enhance the airflow into an engine. However, during take-off in a crosswind, there is a danger of separation of the laminar flow around the lip of the air inlet. How could this threat be reduced, if not eliminated?
a.By pulsing the throttle during take-off.
b.By carrying out a rolling take-off at take-off power until forward speed is built up sufficiently.
c.By carrying out a rolling take-off selecting take-off power once forward speed is built up sufficiently.
d.By taking off at a lower than required IAS.
c.By carrying out a rolling take-off selecting take-off power once forward speed is built up sufficiently.
What happens in the Air Inlet of a High Bypass Turbofan.
a.Speed decreases and Total pressure remains constant.
b.Speed decreases and Total pressure reduces.
c.Speed Increases and Total Pressure remains constant.
d.Speed increases and Total pressure increases.
a.Speed decreases and Total pressure remains constant.
When it comes to Ice protection, the air intake is;
a.Anti-iced using hot air from the HP compressor.
b.De-iced using hot air from the LP compressor.
c.Anti-iced using hot air from the engine exhaust.
d. De-iced using hot air from the HP compressor.
a.Anti-iced using hot air from the HP compressor.
When selected, on a modern engine, what controls the amount and timing of the anti-icing?
a.The FADEC
b.The climate control system.
c.The Pilot
d.The Pilot Monitoring
a.The FADEC
What happens to Pressure Velocity and Temperature in the Air Inlet of a Turbofan engine?
a.Ps Decreases, V Decreases and Temp Increases
b.Ps decreases, V Increases and Temp Decreases.
c.Ps Increases, V Decreases and Temp Increases
d.Ps Increases, V Increases and Temp Increases
c.Ps Increases, V Decreases and Temp Increases
Another name for the Air Intake of a Turbofan Engine is the;
a.Ram Intake
b.Sharp Intake
c.Pitot Intake
d.Static Intake
c.Pitot Intake
