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Question 35-1 : Aerofoilsthe angle of attack as in the case of a aircraft wing is defined as ? [ Exercise DJI ]

The angle between the chord line and relative airflow

Question 35-2 : Aerofoilsfor a fixed wing aircraft airplane or glider from straight and level flight to a steady horizontal turn lift must ?

Increase.

exemple 39: Increase
First decrease and after increase. decrease. remain unchanged.

Question 35-3 : Aerofoilsfor a fixed wing aircraft airplane or glider for standard flight envelope flying at low speed means flying ?

At large angle of attack.

exemple 43: At large angle of attack
At small angle of attack. close to the lowest drag angle of attack. close to the zero lift angle of attack.

Question 35-4 : Aerofoilsfor a fixed wing aircraft airplane or glider for standard flight envelope flying at high speed means flying ?

At small angle of attack.

exemple 47: At small angle of attack
Close to the angle of attack for max lift ot drag ratio. at large angle of attack. close to the critical angle of attack.

Question 35-5 : Aerofoilsaround a wing cross section aerodynamic lift is generated ?

At 75% due to reduced pressure on the upper wing surface.

exemple 51: At 75% due to reduced pressure on the upper wing surface
At 25% due to reduced pressure on the upper wing surface. at 25% due to increased pressure on the upper wing surface. at 75% due to increased pressure on the upper wing surface.

Question 35-6 : Aerofoilsall other factors of importance remaining constant when angle of attack is increased ?

The drag increases.

exemple 55: The drag increases
The lift decreases. the lift increases but drag remains unaffected. the lift increases and drag decreases.

Question 35-7 : Stabilitythe assistance control system stabilisation attitude altitude and guidance systems on a multi rotor aircraft is done by ?

On board electronic.

Question 35-8 : Stabilitythe movement of an aircraft about the longitudinal axis is known as ?

Roll.

Question 35-9 : Stabilityfor a fixed wing aircraft airplane or glider manoeuvrability around the lateral axis pitch ?

Depends on load distribution.

Question 35-10 : Stabilityfor all fixed wing aircraft model you are able to change manoeuvrability onto lateral axis pitch by acting on ?

The center of gravity location.

exemple 71: The center of gravity location
The aerodynamic centre location. centre of pressure location. the load factor.

Question 35-11 : On a small fixed wing drone aircraft or glider the forward displacement of the centre of gravity will have the effect of ?

Increase the stall speed.

exemple 75: Increase the stall speed
Decrease the stall speed. create a nose down attitude in level flight. create a nose up attitude in level flight.

Question 35-12 : A fixed wing drone with a mass of 10 kg is performing a co ordinated level turn at a bank angle of 60° it will have an equivalent weight of ?

20 kg.

exemple 79: 20 kg
25 kg. 15 kg. 30 kg.

Question 35-13 : Choose the statement that best describes the stability concept of an aircraft ?

A stable aircraft tends to naturally resume its attitude after a disturbance.

Stability is the inherent quality of an aircraft to correct for conditions that may disturb its equilibrium and to return to or to continue on the original flightpath it is primarily an aircraft design characteristic the flightpaths and attitudes an aircraft flies are limited by the aerodynamic characteristics of the aircraft its propulsion system and its structural strength these limitations indicate the maximum performance and maneuverability of the aircraft if the aircraft is to provide maximum utility it must be safely controllable to the full extent of these limits without exceeding the pilot's strength or requiring exceptional flying ability if an aircraft is to fly straight and steady along any arbitrary flightpath the forces acting on it must be in static equilibrium the reaction of any body when its equilibrium is disturbed is referred to as stabilitypositive static stability the initial tendency of the aircraft to return to the original state of equilibrium after being disturbed
exemple 83: A stable aircraft tends to naturally resume its attitude after a disturbance
A stable aircraft is very manoeuvrable and requires dynamic compensation an aircraft is stable when the forces acting on it are equal. a stable aircraft is difficult to turn, climb or descent.

Question 35-14 : The load factor on the wings may be increased anytime ?

The aircraft is subjected to maneuvers other than straight and level flight.

In aerodynamics the maximum load factor at given bank angle is a proportion between lift and weight and has a trigonometric relationship the load factor is measured in gs acceleration of gravity a unit of force equal to the force exerted by gravity on a body at rest and indicates the force to which a body is subjected when it is accelerated any force applied to an aircraft to deflect its flight from a straight line produces a stress on its structure the amount of this force is the load factor while a course in aerodynamics is not a prerequisite for obtaining a remote pilot certificate the competent pilot should have a solid understanding of the forces that act on the aircraft the advantageous use of these forces and the operating limitations of the aircraft being flownfor example a load factor of 3 means the total load on an aircraft's structure is three times its weight since load factors are expressed in terms of gs a load factor of 3 may be spoken of as 3 gs or a load factor of 4 as 4 gswith the structural design of aircraft planned to withstand only a certain amount of overload a knowledge of load factors has become essential for all pilotsload factors are important for two reasons 1 it is possible for a pilot to impose a dangerous overload on the aircraft structures2 an increased load factor increases the stalling speed and makes stalls possible at seemingly safe flight speeds
exemple 87: The aircraft is subjected to maneuvers other than straight and level flight
The centre of gravity (cg) is shifted rearward to the aft cg limit. the gross weight is reduced. the aircraft is turned off.

Question 35-15 : Among the choices below identify the document in which a pilot can find aeronautical radio communication frequencies ?

Canada flight supplement.

exemple 91: Canada flight supplement
Manual of designated air spaces. aeronautical information manual. canadian aviation regulations.



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