Test on Aircraft Flight Controls and Forces

Question 1: Do thrust, lift, drag, and gravity represent the four basic forces that act on an aircraft in flight?

A. Ano

B. Ne

Explanation: Thrust, lift, drag, and gravity are the four basic forces that act on an aircraft in flight.

Question 2: Spoilers are included in the auxiliary flight control group.

A. Ano

B. Ne

Explanation: The auxiliary flight control group consists of trim tabs and spring tabs. Spoilers are part of the secondary flight control group.

Question 3: Which of the following flight controls are included in the secondary group?

A. Wing flaps

B. Spoilers

C. Elevators

D. Trim tabs

Explanation: The secondary group of flight controls consists of wing flaps, speed brakes, spoilers, slats, leading edge flaps and slots. Elevators are part of the primary group, and trim tabs are part of the auxiliary group.

Question 4: Why is it especially important that the leading edge of a wing and the upper surface of the forward half of the wing be kept free of dents, dirt, or contamination?

A. To ensure the air flowing over this portion of the wing remains smooth, producing maximum lift.

B. To prevent overheating of the wing structure during high-speed flight.

C. To reduce the overall drag coefficient by minimizing surface area.

D. To allow for proper inspection of internal wing components without obstruction.

Explanation: The study materials state that the air flowing over this portion of the wing must be smooth to produce the maximum amount of lift, and a rough or dirty surface would distort the airflow.

Question 5: An acute angle is formed between the chord line of an airfoil and the longitudinal axis of the aircraft on which it is mounted.

A. Ano

B. Ne

Explanation: The study materials state that 'The acute angle that is formed between the chord line of an airfoil and the longitudinal axis of the aircraft on which it is mounted.' This directly supports the statement that such an angle is formed.