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Question 32-1 : Load factorfor a fixed wing aircraft airplane or glider when load factor increases ? [ Questionnaire weather ]

Stall speed increases but the critical angle of attack remains unchanged

Question 32-2 : Forces acting on an aircraftall other things being equal when temperatures decreases ?

Lift and drag increase.

exemple 36: Lift and drag increase
Lift decreases and drag increases. lift increases and drag decreases. lift and drag decrease.

Question 32-3 : Forces acting on an aircraftif velocity is increased on an airplane wing or a rotor blade at constant angle of attack ?

Lift and drag increase.

exemple 40: Lift and drag increase
Lift increases and drag decreases. lift decreases and drag increases. lift and drag decrease.

Question 32-4 : Forces acting on an aircraftlift acts ?

Perpendicular to relative wind.

exemple 44: Perpendicular to relative wind
Parallel to drag. parallel to relative wind. parallel to mean geometric chord.

Question 32-5 : Forces acting on an aircraftlift and drag vary ?

As the square of the speed.

exemple 48: As the square of the speed
Inversely with the speed. at twice the speed. as the square root of the speed.

Question 32-6 : Forces acting on an aircraftdrag acts ?

Parallel to relative wind.

exemple 52: Parallel to relative wind
Parallel to mean geometric chord. parallel to lift. perpendicular to relative wind.

Question 32-7 : Forces acting on an aircraftfor a fixed wing aircraft airplane or glider in order to maintain a level co ordinated turn compared with straight and level flight the lift must ?

Be greater than in straight flight.

exemple 56: Be greater than in straight flight
Be equal to weight. the same than in straight flight. be lesser than in straight flight.

Question 32-8 : Forces acting on an aircraftfor a fixed wing drone maintaining straight and level flight 1 the lift balances weight2 the lift balances drag3 the thrust balances drag4 the thrust balances weight ?

1 and 3.

Question 32-9 : Forces acting on an aircraftduring a straight and steady flight ?

Lift is equal to weight.

Question 32-10 : Forces acting on an aircraftall other things being equal when altitude increases ?

Lift and drag decrease.

Question 32-11 : Forces acting on an aircraftall other things being equal when temperatures increases ?

Lift and drag decrease.

exemple 72: Lift and drag decrease
Lift and drag increase. lift decreases and drag increases. lift increases and drag decreases.

Question 32-12 : Propellers and rotorsfrom the hub to the tip of a propeller blade the angle of attack ?

Decreases.

exemple 76: Decreases
Changes according the speed. increases. remains unchanged by definition.

Question 32-13 : Propellers and rotorsif one of my drone propeller is broken or shows significant signs of wear ?

I replace the propeller by one of same size and pitch.

exemple 80: I replace the propeller by one of same size and pitch
It does not matter if it still produces the lift necessary to flight. i can replace it with a propeller of the same diameter, with a different pitch. i can replace it with a propeller of the same pitch, with a different diameter.

Question 32-14 : Propellers and rotorslift generated by a blade depends on 1 airmass density2 relative wind speed3 blade area4 blade's angle of attack5 airfoil shape ?

1 2 3 4 5.

exemple 84: 1 2 3 4 5
1, 2, 4. 2, 3, 5. 3, 4, 5.

Question 32-15 : Propellers and rotorsthe diameter of a propeller blade is usually expressed in ?

Inche.

exemple 88: Inche
Mm. cm. foot.



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