Podcast
Questions and Answers
Which of the following scenarios would most likely cause an aircraft to stall?
Which of the following scenarios would most likely cause an aircraft to stall?
- Maintaining a moderate angle of attack while increasing airspeed.
- Exceeding the critical angle of attack. (correct)
- Flying at a high velocity with a small angle of attack.
- Reducing thrust while maintaining a level flight attitude.
An aircraft's electrical system experiences a sudden surge in voltage. What protective device is designed to automatically interrupt the circuit to prevent damage?
An aircraft's electrical system experiences a sudden surge in voltage. What protective device is designed to automatically interrupt the circuit to prevent damage?
- Transformer
- Rheostat
- Circuit breaker (correct)
- Voltage regulator
Which of the following describes the function of the elevators on an aircraft?
Which of the following describes the function of the elevators on an aircraft?
- Adjusting the aircraft's yaw about the vertical axis.
- Modifying airflow to induce stall.
- Managing the aircraft's pitch about the lateral axis. (correct)
- Controlling the aircraft's roll about the longitudinal axis.
During flight, an aircraft experiences a gradual loss of engine power. Which system should the pilot check first as a possible cause?
During flight, an aircraft experiences a gradual loss of engine power. Which system should the pilot check first as a possible cause?
According to Bernoulli's principle, what happens to air pressure as the speed of the air increases?
According to Bernoulli's principle, what happens to air pressure as the speed of the air increases?
In a typical aircraft electrical system, what is the primary function of an alternator?
In a typical aircraft electrical system, what is the primary function of an alternator?
Which type of aircraft engine relies on a reciprocating motion to convert chemical energy into mechanical energy?
Which type of aircraft engine relies on a reciprocating motion to convert chemical energy into mechanical energy?
What is the purpose of the connecting rods in a piston engine?
What is the purpose of the connecting rods in a piston engine?
Which of the following correctly lists the four main forces acting on an aircraft in flight?
Which of the following correctly lists the four main forces acting on an aircraft in flight?
An aircraft's ailerons are primarily used to control movement around which axis?
An aircraft's ailerons are primarily used to control movement around which axis?
In an aircraft electrical system, what is the function of fuses and circuit breakers?
In an aircraft electrical system, what is the function of fuses and circuit breakers?
Which of the following is an advantage of turbine engines over piston engines in aircraft?
Which of the following is an advantage of turbine engines over piston engines in aircraft?
What is the 'angle of attack' in the context of aerodynamics?
What is the 'angle of attack' in the context of aerodynamics?
What is the primary function of magnetos in a piston engine?
What is the primary function of magnetos in a piston engine?
Which component is responsible for mixing fuel and air in a traditional piston engine?
Which component is responsible for mixing fuel and air in a traditional piston engine?
The rudder on an aircraft is primarily used to control movement around which axis?
The rudder on an aircraft is primarily used to control movement around which axis?
Why is it important to have both AC and DC electrical systems in many aircraft?
Why is it important to have both AC and DC electrical systems in many aircraft?
What is the purpose of the oil system in an aircraft piston engine?
What is the purpose of the oil system in an aircraft piston engine?
Which of the following best describes the function of the distribution system in an aircraft's electrical system?
Which of the following best describes the function of the distribution system in an aircraft's electrical system?
If an aircraft's ammeter shows a continuous discharge with the engine running, the probable cause is:
If an aircraft's ammeter shows a continuous discharge with the engine running, the probable cause is:
Flashcards
Aircraft Systems
Aircraft Systems
Various components enabling safe, efficient flight.
Aircraft Engines
Aircraft Engines
Provides thrust to propel the aircraft.
Piston Engines
Piston Engines
Reciprocating engines converting chemical energy to mechanical.
Turbine Engines
Turbine Engines
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Principles of Flight
Principles of Flight
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Lift
Lift
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Weight
Weight
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Thrust
Thrust
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Drag
Drag
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Bernoulli's Principle
Bernoulli's Principle
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Angle of Attack
Angle of Attack
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Stall
Stall
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Control Surfaces
Control Surfaces
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Electrical Systems
Electrical Systems
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Generators/Alternators
Generators/Alternators
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Batteries
Batteries
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Distribution System
Distribution System
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Circuit Breakers/Fuses
Circuit Breakers/Fuses
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Wiring
Wiring
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AC/DC Power
AC/DC Power
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Study Notes
- Aircraft systems refer to components and subsystems ensuring safe and efficient operation.
- Systems include:
- Airframe
- Engines
- Propellers
- Flight controls
- Landing gear
- Hydraulic systems
- Electrical systems
- Avionics
- Environmental control systems
Aircraft Engines
- Aircraft engines produce thrust, which propels the aircraft through the air.
- Engine types:
- Piston engines
- Turbine engines (turbojets, turbofans, turboprops, turboshafts)
- Piston engines are reciprocating engines using pistons to convert chemical energy into mechanical energy.
- Turbine engines employ rotating turbines extracting energy from combusted hot gas flow.
- Engine components:
- Cylinders
- Pistons
- Connecting rods
- Crankshaft
- Valves
- Spark plugs
- Magnetos
- Carburetor/fuel injection system
- Oil system
- Cooling system
- Exhaust system
Principles of Flight
- Principles of flight elucidate lift generation and flight maintenance.
- Four forces on an aircraft:
- Lift
- Weight
- Thrust
- Drag
- Lift opposes weight, generated by airflow over wings.
- Weight is the force of gravity acting on the aircraft.
- Thrust propels the aircraft forward, generated by the engines.
- Drag opposes thrust, caused by air resistance.
- Bernoulli's principle: fluid speed increases, pressure decreases.
- Angle of attack is between the wing's chord line and the relative wind.
- Stall occurs when the angle of attack exceeds the critical angle, leading to lift loss.
- Control surfaces (ailerons, elevators, rudders) adjust aircraft attitude and direction.
Electricity in Aircraft
- Electrical systems power various aircraft systems and equipment.
- An electrical system consists of:
- Generators/alternators
- Batteries
- Distribution system
- Circuit breakers/fuses
- Wiring
- Generators/alternators generate electrical power while the engine runs.
- Batteries serve as backup power and engine starting.
- The distribution system allocates electrical power across aircraft systems and equipment.
- Circuit breakers/fuses protect the electrical system from overloads and short circuits.
- Wiring transmits electrical power.
- AC (Alternating Current) and DC (Direct Current) are utilized in aircraft electrical systems.
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