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22 Cards in this Set
- Front
- Back
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Name the three components on the induction system of a reciprocating engine? |
The air scoop, carburetor, and intake manifold |
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What could happen if the induction system becomes obstructed? |
Engine may not be able to produce power or run at all |
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How does induction icing affect engine performance? |
It causes reduction in power |
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How is induction icing categorized? |
As impact ice, fuel evaporation ine, and throttle ice |
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What is the common method used to prevent induction system ice in a reciprocating engine? |
Raise the temperature of induction air with a preheater |
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What causes fuel evaporation ice? |
Decrease in air temperature resulting from evaporation of the fuel after it is introduced into the air stream |
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Is carburetor throttle ice more likely to occur at a higher or lower power setting? Why? |
At a lower power setting because the throttle is partly closed |
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What may be the indication of leaking intake pipes? |
Engine runs rough at low r.p.m. |
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What happens to engine power when the carburetor heat is applied? |
Noticeable drop in power |
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What could happen if carburetor heat is applied at high engine power settings? |
Detonation |
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What are two types of supercharged induction systems? |
Internally driven and externally driven |
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How and at what point does an internally driven supercharger boost air pressure? |
Engine-driven impeller compresses the fuel/air mixture after it leaves the carburetor |
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What is used to power a turbocharger? |
Engine exhaust gas directed onto the turbocharger turbine |
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What could result if the waste gate on a turbocharger system does not close fully? |
Engine may not be able to produce its rated power at certain altitudes |
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What function does a turbocharger waste gate perform? |
It controls the amount of exhaust gas either into or around the turbocharger |
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What could cause a turbocharged engine to surge? |
There could be a waste gate or controller malfunction |
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What are most common ways to control a waste gate? |
Mechanically with linkages to the throttle or by an actuator that is driven by oil pressure |
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In a pressurized reciprocating aircraft, what component in the turbocharger system is used to limit the amount of turbocharger airflow used for cabin pressurization? |
The sonic venturi |
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What is the function of a divergent-shaped jet engine inlet during subsonic flight? |
It causes the air velocity to decrease with a subsequent increase in air pressure |
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Where are bellmouth inlet typically found? |
On helicopter engines |
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How do venturi-type particle separators, found on many turbine powered helicopters, function? |
A |
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What are the most common methods used for anti-icing of turbine engine inlet ducts? |
Engine bleed air and electric heating elements |
