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Gleim PPL Unit 1 Airplanes And Aerodynamics With Complete Solutions
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Gleim PPL Unit 1 Airplanes And Aerodynamics With Complete Solutions
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Solution 2024/2025Pepper
Gleim: PPL Unit 1: Airplanes And Aerodynamics
With Complete Solutions
If an airplane weighs 3,300 pounds, what approximate weight would the airplane structure be required to support
during a 30° banked turn while maintaining altitude? ANS✔✔ 3,960 lb
Look on the left side of the chart in Fig. 2 to see that, at a 30° bank angle, the load factor is 1.154. Thus, a 3,300-lb.
airplane in a 30° bank would require its wings to support 3,808.2 lb. (3,300 lb. × 1.154). The closest answer choice to this
value is 3,960 lb.
During an approach to a stall, an increased load factor will cause the aircraft to ANS✔✔ Stall at a higher airspeed.
The greater the load (whether from gross weight or from centrifugal force), the more lift is required. Therefore, an
aircraft will stall at higher airspeeds when the load and/or load factor is increased.
The four forces acting on an airplane in flight are: ANS✔✔ Lift, weight, thrust, and drag.
Which basic flight maneuver increases the load factor on an airplane as compared to straight-and-level flight? ANS✔✔
Turns increase the load factor because the lift from the wings is used to pull the airplane around a corner as well as to
offset the force of gravity.
What is the purpose of the rudder on an airplane? ANS✔✔ To control yaw.
What causes an airplane (except a T-tail) to pitch nosedown when power is reduced and controls are not adjusted?
ANS✔✔ The downwash on the elevators from the propeller slipstream is reduced and elevator effectiveness is reduced.
The term "angle of attack" is defined as the angle between the: ANS✔✔ chord line of the wing and the relative wind.
Limit load factor is the ratio of: ANS✔✔ maximum sustainable load to the gross weight of the airplane.
, Solution 2024/2025
Pepper
An airplane loaded with the Center of Gravity (CG) rear of the aft CG limit could: ANS✔✔ increase the likelihood of
inadvertent overstress.
An aircraft leaving ground effect during takeoff will: ANS✔✔ experience an increase in induced drag and a decrease in
performance.
An airplane has 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: ANS✔✔ Difficulty in recovering from a stalled
condition.
What is ground effect? ANS✔✔ The result of the interference of the surface of the Earth with the airflow patterns about
an airplane.
As altitude increases, the indicated airspeed at which a given airplane stalls in a particular configuration will: ANS✔✔
remain the same regardless of altitude.
If an airplane weighs 2,300 pounds, what approximate weight would the airplane structure be required to support
during a 60° banked turn while maintaining altitude? ANS✔✔ 4,600 (60 = 2.000, 2,300 x 2.000 = 4,600)
What is the relationship of lift, drag, thrust, and weight when the airplane is in straight-and-level flight? ANS✔✔ Lift
equals weight and thrust equals drag.
Bernoulli's Principle: ANS✔✔ as the velocity of a fluid increases, the pressure exerted by the fluid decreases
If an airplane weighs 4,500 pounds, what approximate weight would the airplane structure be required to support
during a 45° banked turn while maintaining altitude? ANS✔✔ 6,750 (45 = 1.414, 4,500 x 1.414 = 6,363, round to closet
answer)
The angle of attack at which an airplane wing stalls will: ANS✔✔ remain the same regardless of gross weight.
Changes in the center of pressure of a wing affect the aircraft's ANS✔✔ aerodynamic balance and controllability.
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