Repair Engine Ice Systems Flashcards
Why does ice form in the throat of a f the float carburetor?
When liquid fuel evaporates it absorbs enough heat from the air to cause moisture to condense out and freeze
Does the application of carburetor heat cause the fuel-air mixture to become richer or leaner?
The less dense heated air draws the same amount of fuel from the carburetor as cold air therefore the mixture becomes richer
What happens to engine RPM when carburetor heat is applied?
The RPM drops
Why should the use of carburetor heat be limited when operating an engine with the aircraft on the ground?
The air flows into the engine when carburetor heat is applied if not filtered
Why is a fuel injected reciprocating engine not as prone to icing as an engine equipped with a float carburetor?
In a fuel injected engine the liquid fuel evaporates in the intake valve chamber of the hot cylinder heac
How is ice prevented from forming on the nose cowl nose dome and inlet guide vanes of a turbine engine?
Hot compressor bleed air flows through passages in these components to keep them too warm for ice to form
