Test on Aircraft Engine Fuel Metering Systems
Aircraft Engine Fuel Metering Systems Explained: A Student Guide
Test: Aircraft Engine Fuel Systems
20 questions
Question 1: If not adjusted, the air-fuel mixture provided by a float carburetor becomes richer as the aircraft gains in altitude.
A. Ano
B. Ne
Explanation: If the mixture is not adjusted, it will become richer as the aircraft gains in altitude.
Question 2: Is the primary function of a float carburetor to measure fuel pressure within the engine induction system?
A. Ano
B. Ne
Explanation: The float carburetor's function is to measure airflow through the engine induction system, not fuel pressure.
Question 3: The automatic mixture control in a pressure carburetor enriches the air-fuel mixture as the aircraft gains altitude by bleeding air between the two sides of the air diaphragm.
A. Ano
B. Ne
Explanation: The automatic mixture control leans the mixture as the aircraft goes up in altitude by automatically and progressively bleeding air between the two sides of the air diaphragm, which decreases the air metering force.
Question 4: When setting the idling conditions on a float carburetor, is the idle RPM adjusted by the throttle stop?
A. Ano
B. Ne
Explanation: Idling RPM is adjusted by adjusting the throttle stop when setting the idling conditions on a float carburetor.
Question 5: Is it true that a float carburetor's function includes providing fuel in a mostly liquid state by the time ignition occurs in the engine cylinders?
A. Ano
B. Ne
Explanation: A float carburetor must provide fuel in a state that is as vaporized as possible by the time ignition occurs in the engine cylinders, not mostly liquid.