Aircraft Engine Operation and Maintenance

The video tutorial covers the basics of aircraft fuel systems, focusing on fuel tanks, piston engines, and the importance of using the correct fuel type to prevent detonation. It explains engine start procedures, the role of mixture control, and how to manage engine temperature. The tutorial also discusses carburetor function, the risks of carburetor icing, and the use of carburetor heat. Additionally, it covers the operation of constant speed propellers and the importance of managing manifold pressure and RPM. Finally, it addresses normal combustion processes and the dangers of pre-ignition.

What type of fuel is typically used in piston engines of aircraft?

• Diesel

• 100 Low Lead

• Jet A

• Kerosene

What is the purpose of the mixture control during takeoff?

• To enrich the fuel-air mixture

• To increase airspeed

• To decrease engine temperature

• To adjust the propeller angle

Why is oil circulation crucial in air-cooled engines?

• It increases fuel efficiency

• It helps in internal cooling

• It reduces noise

• It improves aerodynamics

What problem can occur due to carburetor icing?

• Increased fuel consumption

• Blocked airflow

• Excessive engine noise

• Overheating of the engine

How does carburetor heat help in resolving carburetor icing?

• By enriching the fuel mixture

• By cooling the engine

• By increasing air pressure

• By heating the air and melting the ice

What is the function of a constant speed propeller?

• To maintain a constant engine RPM

• To adjust the fuel mixture

• To increase the aircraft's speed

• To reduce engine noise

What should be avoided when operating an engine with a constant speed propeller?

• High RPM with low manifold pressure

• Low airspeed with high power setting

• Low RPM with high manifold pressure

• High airspeed with low power setting

What happens during normal combustion in an aircraft engine?

• The piston moves down, compressing the fuel

• The spark plug ignites the compressed fuel

• The piston remains stationary

• The fuel-air mixture is cooled

What is pre-ignition in an aircraft engine?

• Delayed ignition of the fuel-air mixture

• Ignition of the mixture at low temperatures

• Ignition of the mixture before the spark plug fires

• Ignition of the mixture after the piston moves down

What can cause pre-ignition in an aircraft engine?

• Running a lean mixture

• Low engine temperatures

• Using high-grade fuel

• High air pressure