Free for a few more days!
Sign up to unlock all our services and 1230 corrected and explained questions.


Question 32-1 : Load factor...for 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 aircraft...all 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 aircraft...if 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 aircraft...lift 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 aircraft...lift 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 aircraft...drag 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 aircraft...for 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 aircraft...for a fixed wing drone maintaining straight and level flight.1 the lift balances weight.2 the lift balances drag.3 the thrust balances drag.4 the thrust balances weight ?

1 and 3..

Question 32-9 : Forces acting on an aircraft...during a straight and steady flight ?

Lift is equal to weight..

Question 32-10 : Forces acting on an aircraft...all other things being equal, when altitude increases ?

Lift and drag decrease..

Question 32-11 : Forces acting on an aircraft...all 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 rotors...from 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 rotors...if 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 rotors...lift generated by a blade depends on.1 airmass density.2 relative wind speed.3 blade area.4 blade's angle of attack.5 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 rotors...the diameter of a propeller blade is usually expressed in ?

Inche..

exemple 88: Inche.
Mm. cm. foot.

~

Exclusive rights reserved. Reproduction prohibited under penalty of prosecution.

464 Free Training Exam