Exam Practice Test Questions And Correct

FAA Repairman Certificate – Light-Sport Aircraft (LSA) Maintenance – Gyroplane Exam Practice Test Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary control used to change the pitch attitude of a

gyroplane?

• Rudder
• Control stick
• Throttle
• Collective

Rationale: The control stick directly tilts the rotor disc, changing the

gyroplane’s pitch and roll attitude.

2. The rotor blades of a gyroplane are primarily driven by:

• The engine through a gearbox
• Aerodynamic autorotation
• A hydraulic motor 1 / 4

• A belt drive system

Rationale: Gyroplanes use autorotation to maintain lift; the rotor is

not engine-driven during flight.

• Which of the following best defines autorotation?
• Engine drives the rotor system
• Airflow through the rotor causes it to spin
• Electric motor spins the rotor blades
• Windmilling effect of the tail rotor

Rationale: In autorotation, the rotor spins due to upward airflow,

producing lift.

• What component provides yaw control in a gyroplane?
• Rotor head
• Rudder
• Elevator
• Ailerons

Rationale: The rudder on the vertical stabilizer controls yaw through

aerodynamic forces.

• During preflight inspection of a gyroplane, the rotor head should be

checked for:

• Propeller pitch angle
• Free movement and bearing condition
• Rudder cable tension only
• Fuel flow restriction 2 / 4

Rationale: The rotor head must move freely with no excessive play to

ensure control safety.

6. The purpose of a pre-rotator in a gyroplane is to:

• Increase yaw stability
• Spin the rotor before takeoff
• Provide lift during cruise
• Control roll motion

Rationale: Pre-rotators help accelerate rotor blades before takeoff to

achieve flight RPM.

• What type of engine is commonly used in Light-Sport Gyroplanes?
• Turboprop
• Four-stroke or two-stroke piston engines
• Rotary (Wankel) engine
• Diesel engine

Rationale: LSA gyroplanes typically use lightweight piston engines

like Rotax for efficiency and reliability.

8. The cyclic control on a gyroplane functions to:

• Increase or decrease total rotor lift
• Tilt the rotor disc in a desired direction
• Control engine RPM
• Adjust rudder trim

Rationale: The cyclic changes the rotor disc angle, controlling the

direction of flight. 3 / 4

• What is the purpose of the teeter bolt in a two-blade rotor system?
• Balance the rotor hub
• Allow blades to flap as a unit
• Adjust blade pitch
• Secure the hub to the mast

Rationale: The teeter bolt allows both blades to flap together,

reducing stress from asymmetrical lift.

• The phenomenon causing one rotor blade to produce more lift

than the other during forward flight is:

• Rotor wash
• Dissymmetry of lift
• Gyroscopic precession
• Coning

Rationale: Dissymmetry of lift occurs because advancing and

retreating blades experience different relative airspeeds.

• How is dissymmetry of lift compensated in a gyroplane?
• Varying engine RPM
• Changing blade chord
• Flapping of rotor blades
• Increasing rudder deflection

Rationale: Flapping allows the advancing blade to rise and the

retreating blade to lower, balancing lift.

• / 4