Basic Aerodynamics To Stability! Principles Trivia Quiz
Basic aerodynamics to stability quiz. It is designed to cover Aerodynamic Principles Chapter 3, Section B Stability. As an engineer, you will be expected to ensure that the plane you are working on is in top shape and can be stable once it is off the air. Do you think you have what it takes to tackle it? Do give it a try and refresh your memory on what we learned.
- 1.An airplane said to be inherently stable will
- A.
Be difficult to stall
- B.
Require less effort to control
- C.
Not spin
- 2.What determines the longitudinal stability of an airplane?
- A.
The location of the CG with respect to the center of lift
- B.
The effectiveness of the horizontal stabilizer, rudder, and rudder trim tab.
- C.
The relationship of thrust and lift to weight and drag.
- 3.What causes an airplane (except a T-tail) to pitch nose-down when power is reduced and controls are not adjusted?
- A.
The CG shifts forward when thrust and drag are reduced
- B.
The down wash on the elevators from the propeller slipstream is reduced and elevator effectiveness is reduced.
- C.
When thrust is reduced to less than weight, lift is also reduced and the wings can no longer support the weight.
- 4.An airplane as been loaded in such a manner that the CG is located aft of the aft CG limit. One undesirable flight characteristic a pilot might experience with this airplane would be
- A.
A longer take off run
- B.
Difficulty in recovering from a stalled condition
- C.
Stalling at higher-than normal airspeed.
- 5.Loading an airplane to the most aft CG will cause the airplane to be
- A.
Less stable at all speeds
- B.
Less stable at slow speeds, but more stable at high speeds
- C.
Less stable at high speeds, but more stable at low speeds
- 6.In what flight condition must an aircraft be placed in order to spin?
- A.
Partially stalled with one wing low
- B.
In a steep diving spiral
- C.
Stalled.
- 7.During a spin to the left, which wing(s) is/are stalled?
- A.
Both wings are stalled
- B.
Neither wing is stalled
- C.
Only the left wing is stalled
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