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26 Cards in this Set
- Front
- Back
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Reduced manoeuvre ceiling |
Heavier weight + increased acceleration |
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What happens to Velocity, Temperature and Pressure in a Diffuser |
Velocity increases, Pressure and Temperature decreases |
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What happens to Velocity, Temperature and Pressure in a Turbine |
Velocity decreases, Pressure and Temperature increases |
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When a wet start has occurred what do you do to prevent another malfunction |
Motor to prevent torching |
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Advantages of a free turbine |
High Torque at low RPM |
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What causes the Mach Tuck |
Rearward movement of the centre of pressure. |
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What happens to velocity, pressure and temperature in a subsonic divergent flow |
Velocity decreases, |
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What do safety valves in a nose wheel hydraulic failure do? |
Allow the nose wheel to turn |
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Disadvantages of a swept wing |
Stalls tip first Strong spanwise flow at high AOA Reduced CL Max Reduced trailing edge device effectiveness Excessive lateral stability leading to Dutch roll High induced drag |
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In the Air Cycle air conditioner, the effect of the turbine on Pressure, temp and velocity of bleed air from the gas turbine is |
Decrease in Pressure, Temperature and Velocity |
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What is EPR |
Engine Pressure Ratio Static air pressure at the exhaust outlet compared to inlet air pressure. |
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Advantages of a turbo prop |
Lower starter torque Variable prop speed High torque at low RPM |
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What happens to Velocity, Pressure and Temperature in a Convergent duct |
Velocity increase Density and Temperature decrease |
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What happens to Velocity, Pressure and Temperature in a Convergent duct |
Velocity increase Density and Temperature decrease |
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What happens to Velocity, Pressure and Temperature in a Convergent duct |
Velocity increase Density and Temperature decrease |
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What happens to Velocity, Pressure and Temperature in a Divergent duct |
Velocity decreases Density and Temperature increases |
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Hot air for engine and nacelle anti ice is normally obtained from where? |
Low pressure compressor stage |
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What faults would cause an APU to automatically shutdown. |
Low oil pressure High oil temperature High exhaust gas temp Over speed Duct overheat |
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Increase in gross weight will cause the total drag curve to move??? |
Up and right |
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Increase in gross weight will cause the total drag curve to move??? |
Up and right |
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The deployment of spoilers will cause the curve to move??? |
Up and left |
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With the extension of gear the drag curve will move?? |
Up and Left |
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The function of a restrictor valve in large aircraft pneumatic system is to? |
Adjust the speed of the air flow. |
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The 5 GPWS alerts |
1. Excessive descent rate 2. Excessive terrain closure 3. Altitude loss after take off or go around 4. Unsafe terrain clearance while not in the landing configuration 5. Below glide slope |
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The approx % of mass airflow through a gas turbine entering the combustion chamber through the front entry is? |
20% |
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Two most critical factors in determining relight capability of a turbo jet engine are? |
Altitude and airspeed |
