Power Augmentation Flashcards
What are the two types of chargers increase power augmentation within a piston engine?
Turbo charger and a super charger.
What does the Manifold absolute pressure measure the pressure of within a piston engine?
Cylinder pressure.
At idle speed there will be the blank map gage.
Lowest.
When the butterfly is open what happens to the pressure?
It reduces.
Higher the power, the blank the map.
Higher.
Less difference in pressure on the map, the blank power in the engine.
More.
As you climb, atmospheric pressure decreases therefore power blanks in the engine.
Increases.
Blank blank is when the pressure of the aircraft matches the atmosphere.
Performance ceiling.
Whats it called when the boost value reaches 0 psi?
Critical altitude.
Ground boosted is a type of power augmentation. It blanks with increasing altitude.
Decreases.
Attitude boosted boosts above a given altitude. What altitude is this?
6000ft.
What is the turbo charger driven by?
Exhaust gasses.
What is the super charger driven by?
Crankshaft.
The waste gate is located within the turbo charger. What does this control the speed of?
Turbine speed.
As the turbine slows down within the turbo charger waste gate, the pressure blanks.
Decreases.
If the waste gate is closed do you get more or less power?
More power.
What is a turbocharger used for in a piston aero-engine? (Map and altitude)
Compensating for a decreasing MAP with increasing altitude.
The air source for the vapour-cycle machine in a piston engine airplane is…
Compressor
When detonation is recognised in a piston engine, the correct procedure is to increase/reduce manifold pressure and fully enrich/lean the mixture.
Reduce and enrich
Assuming the RPM and throttle levers are not altered, when TAS increases the blade angle of a constant speed propeller will increase/decrease.
Increase.
A turbocharger in a reciprocating engine consists of a blank and turbine mounted on a common shaft.
compressor and turbine mounted on a common shaft.
A turbocharger in a reciprocating engine consists of a compressor and blank mounted on a common shaft.
Turbine
The air in a piston engine turbocharger enters the centrifugal compressor at…the eye of the impeller and leaves it almost at a tangent to the blank
Periphery.
