SU-1 Airplanes and Aerodynamics PP Exam

1. What is one purpose of wing flaps?

• To enable the pilot to make steeper approaches to a landing without increasing the speed.
• To relieve the pilot of maintaining continuous pressure on the controls.
• To decrease wing are to vary the lift.

2. One of the main functions of flaps during approach and landing is to

• decrease the angle of descent without increasing the airspeed.
• permit a touchdown at a higher indicated airspeed.
• increase the angle of descent without increasing the airspeed.

3. What is the purpose of the rudder on an airplane?

• To control yaw.
• To control over banking tendency.
• To control roll.

4. Which is not a primary flight control surface?

• Flaps
• Stabilator
• Ailerons

5. The elevator controls movement around which axis?

• Longitudinal
• Lateral
• Vertical

6. Which statement is true concerning primary flight controls?

• The effectiveness of each control surface increases with speed because there is more airflow over them
• Only when all three primary flight controls move in sequence do the airflow and pressure distribution change over and around the airfoil.
• Primary flight controls include ailerons, rudder, elevator, and trim systems.

7. Which of the following is true concerning flaps?

• Flaps are attached to the leading edge of the wing and are used to increase wing lift.
• Flaps allow an increase in the angle of descent without increasing airspeed.
• Flaps are high drag devices deployed from the wing to reduce lift.

8. Which device is a secondary flight control?

• Spoilers
• Ailerons
• Stabilators

9. Trim systems are designed to do what?

• They relieve the pilot of the need to maintain constant pressure on the flight controls
• They are used during approach and landing to increase wing lift.
• They move in the opposite direction from one another to control roll.

10. The four forces acting on an airplane in flight are

• lift, weight, thrust, and drag.
• lift weight, gravity, and thrust.
• lift, gravity, power, and friction.