Emanuel Rivera
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PPL 2025 - 2026 PPL Quiz sobre Chapter 1 - Aerodynamics, criado por Emanuel Rivera em 05-06-2014.

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Emanuel Rivera
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Chapter 1 - Aerodynamics

Questão 1 de 24

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3212. What Causes an airplane (except a T-tail) to pitch nosedown when power is reduced and controls are not adjusted?

Selecione uma das seguintes:

  • a) The CG shifts forward when thrust and drag are reduced.

  • b) The downwash on the elevators from the propeller slipstream is reduced and elevator effectiveness is reduced.

  • c) When the thrust is reduced to less than weight, lift is also reduced and the wings can no longer support the weight.

Explicação

Questão 2 de 24

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3287. An airplane has been loaded in such a manner that the CG is located aft of the CG limits. One undesirable flight characteristic a pilot might experience with this airplane would be

Selecione uma das seguintes:

  • a) a longer takeoff run.

  • b) difficulty in recovering from a stalled condition.

  • c) stalling at higher-than-normal airspace.

Explicação

Questão 3 de 24

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3203. (Refer to figure 1.) The acute angle A is the angle of

Selecione uma das seguintes:

  • incidence.

  • attack.

  • dihedral.

Explicação

Questão 4 de 24

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3204. The term "angle of attack" is defined as the angle

Selecione uma das seguintes:

  • between the wing chord line and the relative wind.

  • between the airplane's climb angle and the horizon.

  • formed by the longitudinal axis of the airplane and the cord line of the wing.

Explicação

Questão 5 de 24

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3204-1. The angle between the chord line of an airfoil and the relative wind is known as the angle of

Selecione uma das seguintes:

  • lift.

  • attack.

  • incidence.

Explicação

Questão 6 de 24

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3288. Loading an airplane to the most aft CG will cause the airplane to be

Selecione uma das seguintes:

  • 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.

Explicação

Questão 7 de 24

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3211-1. Changes in the center of pressure of a wing affect the aircraft's

Selecione uma das seguintes:

  • a) lift/drag ratio.

  • b) lifting capacity.

  • c) aerodynamic balance and controllability.

Explicação

Questão 8 de 24

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3316. During an approach to a stall, an increased load factor will cause the airplane to

Selecione uma das seguintes:

  • a) stall at a higher speed.

  • b) have tendency to spin.

  • c) be more difficult to control.

Explicação

Questão 9 de 24

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3202-4. If an emergency situation requires a downwind landing, pilots should expect a faster

Selecione uma das seguintes:

  • a) airspeed at touchdown, a longer ground roll, and better control throughout the landing roll.

  • b) groundspeed at touchdown, a longer ground roll, and the likelihood of overshooting the desired touchdown point.

  • c) groundspeed at touchdown, a shorter ground roll, and the likelihood of undershooting the desired touchdown point.

Explicação

Questão 10 de 24

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3263. As altitude increased, the indicated airspeed at which a given airplane stalls in a particular configuration will

Selecione uma das seguintes:

  • a) decreased as the true airspeed decreases.

  • b) decreased as the true airspeed increases.

  • c) remain the same regardless of altitude.

Explicação

Questão 11 de 24

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3311. The angle of attack at which an airplane wing stalls will

Selecione uma das seguintes:

  • a) increased if the CG is moved forward.

  • b) change with an increase in gross weight.

  • c) remain the same regardless of gross weight.

Explicação

Questão 12 de 24

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3315. Ground effect is most likely to result in which problem?

Selecione uma das seguintes:

  • a) Settling to the surface abruptly during landing.

  • b) Becoming airborne before reaching recommended takeoff speed.

  • c) Inability to get airborne even though airspeed is sufficient for normal takeoff needs.

Explicação

Questão 13 de 24

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3312. What is ground effect?

Selecione uma das seguintes:

  • a) The result of the interference of the surface of the earth with the airflow patterns about an airplane.

  • b) The result of an alteration in airflow patterns increasing induced drag about the wings of an airplane.

  • c) The result of the disruption of the airflow patterns about the wings will no longer support the airplane in flight.

Explicação

Questão 14 de 24

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3313. Floating caused by the phenomenon of ground effect will be most realized during an approach to land when at

Selecione uma das seguintes:

  • a) less than the length of the wingspan above the surface.

  • b) twice the length of the wingspan above the surface.

  • c) a higher-than-normal angle of attack

Explicação

Questão 15 de 24

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3314. What most pilot be aware of as a result of ground effect?

Selecione uma das seguintes:

  • a) Wingtip vortices increase creating wake turbulence problems for arriving and departing aircraft

  • b) Induced drag decreases; therefore, any excess speed at the point of flare may cause considerable floating.

  • c) A full stall landing will require less up elevator deflection than would a full stall when done free of ground effect.

Explicação

Questão 16 de 24

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3829-2. When landing behind a large aircraft, which procedure should be followed for vortex avoidance?

Selecione uma das seguintes:

  • a) Stay above its final approach flightpath all the way to touchdown.

  • b) Stay below and to one side of its final approach fligthpath.

  • c) Stay well below its final approach flightpath and land at least 2,000 feet behind.

Explicação

Questão 17 de 24

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3829-3. How does the wake turbulence vortex circulate around each wingtip?

Selecione uma das seguintes:

  • a) Inward, upward, and around each tip.

  • b) Inward, upward, and counterclockwise.

  • c) Outward, upward, and around each tip.

Explicação

Questão 18 de 24

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3827. When taking off or landing at an airport where heavy aircraft are operating, one should be particularly alert to the hazards of wingtip vortices because this turbulence tends to

Selecione uma das seguintes:

  • a) rise from a crossing runway into the takeoff or landing path.

  • b) rise into the traffic pattern area surrounding the airport.

  • c) sink into the flightpath of aircraft operating below the aircraft generating the turbulence.

Explicação

Questão 19 de 24

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3824. Wingtip vortices are created only when an aircraft is

Selecione uma das seguintes:

  • a) operating at high airspeed.

  • b) heavily loaded.

  • c) developing lift.

Explicação

Questão 20 de 24

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3825. The greatest vortex strength occurs when the generating aircraft is

Selecione uma das seguintes:

  • a) light, dirty, and fast.

  • b) heavy, dirty, and fast.

  • c) heavy, clean, and slow.

Explicação

Questão 21 de 24

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3826. Wingtip vortices created by larger aircraft tend to

Selecione uma das seguintes:

  • a) sink below the aircraft generating turbulence.

  • b) rise into the traffic pattern.

  • c) rise into the takeoff or landing path of a crossing runway.

Explicação

Questão 22 de 24

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3828. The wind condition that requires maximum caution when avoiding wake turbulence on landing is a

Selecione uma das seguintes:

  • a) light, quartering headwind.

  • b) light, quartering tailwind.

  • c) strong headwind.

Explicação

Questão 23 de 24

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3829. When landing behind a large aircraft, the pilot should avoid wake turbulence by staying

Selecione uma das seguintes:

  • a) above the large aircraft's final approach path and landing beyond the large aircraft's touchdown point.

  • b) below the large aircraft's final approach path and landing before the large aircraft's touchdown point.

  • c) above the large aircraft's final approach path and landing before the large aircraft's touchdown point

Explicação

Questão 24 de 24

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3830. When departing behind a heavy aircraft's, the pilot should avoid wake turbulence by maneuvering the aircraft

Selecione uma das seguintes:

  • a) below and downwind from a heavy aircraft.

  • b) above and upwind from a heavy aircraft.

  • c) below and upwind from the heavy aircraft.

Explicação