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15 Cards in this Set
- Front
- Back
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Where is the heat taken from that is used to heat the induction air in a reciprocating engine? |
From a muffler shroud installed around the engine exhaust system |
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Where does the alternate air come from that is used with a pressure carburetor or a fuel injection system? |
The engine cowling |
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Where does carburetor ice normally form in a carburetor? |
Carburetor throat and around the throttle valve |
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Does the application of carburetor heat cause the fuel-air mixture to become richer or leaner? |
Richer |
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What is used to drive most of the external superchargers used on modern reciprocating engines? |
Exhaust gases |
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What controls the speed of a turbocharger compressor? |
The position of the waste gate which controls the amount of exhaust gases flowing through the turbine |
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What is meant by a convergent inlet duct for a turbine engine? |
A duct whose cross-sectional area becomes smaller in the direction of the air flow |
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What is meant by a divergent inlet duct for a turbine engine? |
A duct whose cross-sectional area becomes wider in the direction the air flows |
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What kind of inlet duct is often used on turbine powered helicopters? |
Bell-mouthed inlet duct |
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What is the danger of operating an aircraft reciprocating engine with too high a carburetor air temperature? |
The engine will run rich which could lead to detonation |
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Why do some turbine engines use variable inlet guide vanes? |
To control the direction of the air into the engine that maintains the proper balance between RPM and velocity for most the efficient operations |
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How do some turbine engines prevent ice formation on inlet guide vanes? |
Hot compressor bleed air flows through the dude vanes |
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What is usually installed in a large reciprocating engine between the turbo charger and the carburetor |
Intercooler or air-to-air heat exchanger |
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In what position should the carburetor heat control be placed when starting a reciprocating engine? |
In the cold position |
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How does an engine air inlet vortex destroyer help prevent foreign object damage to the engine? |
A high-velocity compressor bleed air blows across the front of the engine to break up the vortices forming around the engine when operated at high power on the ground |
