15 Questions
What is the primary function of the fuel system in an aircraft?
To store and continuously deliver fuel to the carburetor or fuel injection system
Which component of the fuel injection system meters fuel and pipes it to the fuel manifold unit?
Fuel Control Unit (FCU)
What type of abnormal combustion is usually caused by an incompatible burning rate of the fuel with the compression ratio and spark plug advance?
Pre-ignition
What is the primary purpose of an aircraft powerplant?
To produce thrust to propel the aircraft
Which of the following is NOT a configuration of aircraft powerplants?
Turbofan engine
What are the two primary designs of reciprocating engines?
Spark Ignition and Compression Ignition
Which component of a reciprocating engine converts the reciprocating motion of the piston to rotary motion?
Crankshaft
What is the purpose of the camshaft in a reciprocating engine?
To operate the opening and closing of the inlet and exhaust valves
What are the primary materials commonly used in the construction of wing structures?
Aluminum and carbon fiber
Where are ailerons typically located on an aircraft?
On the trailing edge of the wings
What is the function of the elevator on an aircraft?
To adjust the aircraft's pitch angle
What is the purpose of a propeller on an aircraft?
To convert power output into thrust
What is the angle of attack of a propeller?
The angle between the chord of the blade and the relative airflow
Which type of propeller system automatically maintains the selected RPM under varying conditions of airspeed and power?
Constant Speed Unit (CSU)
What distinguishes fixed pitch propellers from variable pitch propellers?
Fixed pitch propellers have blades that cannot be adjusted
Study Notes
Fuel System
- The primary function of the fuel system is to deliver fuel to the engine cylinders at the correct pressure and flow rate.
Fuel Injection System
- The fuel metering unit is responsible for metering fuel and piping it to the fuel manifold unit.
Combustion
- Abnormal combustion caused by an incompatible burning rate of fuel with the compression ratio and spark plug advance is usually detonation.
Aircraft Powerplant
- The primary purpose of an aircraft powerplant is to provide power for flight.
Powerplant Configurations
- A configuration of aircraft powerplants that is NOT typical is a single turboprop.
Reciprocating Engines
- The two primary designs of reciprocating engines are radial and inline.
Engine Components
- The crankshaft converts the reciprocating motion of the piston to rotary motion.
- The camshaft is responsible for operating the engine valves.
Wing Structures
- The primary materials commonly used in the construction of wing structures are aluminum and composite materials.
Aircraft Control Surfaces
- Ailerons are typically located on the trailing edge of the wing.
- The elevator, located on the tail, controls the pitch of the aircraft.
Propeller
- The function of a propeller is to convert the engine's energy into thrust.
- The angle of attack of a propeller is the angle between the propeller blade and the oncoming airflow.
Propeller Systems
- A constant-speed propeller system automatically maintains the selected RPM under varying conditions of airspeed and power.
- What distinguishes fixed pitch propellers from variable pitch propellers is the ability to change the propeller's pitch angle during flight.
Test your knowledge of aircraft powerplants with these multiple-choice questions covering their purpose, configurations, and designs.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
