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

Question 75-1 : By following the wing on the upper surface the relative airflow ? [ Exercise takeoff ]

Accelerates and creates a low pressure

Question 75-2 : Load factor for a fixed wing aircraft airplane or glider load factor is ?

Lift weight.

exemple 79: Lift weight
Weight / lift. drag / weight. drag / lift.

Question 75-3 : Load factor for a fixed wing aircraft airplane or glider when load factor increases ?

Stall speed increases but the critical angle of attack remains unchanged.

exemple 83: Stall speed increases but the critical angle of attack remains unchanged
Critical angle of attack increases, but stall speed remains unchanged. both critical angle of attack and stall speed increase. critical angle of attack increases, but stall speed decreases.

Question 75-4 : Forces acting on an aircraft all other things being equal when temperatures decreases ?

Lift and drag increase.

exemple 87: Lift and drag increase
Lift decreases and drag increases. lift increases and drag decreases. lift and drag decrease.

Question 75-5 : 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 91: Lift and drag increase
Lift increases and drag decreases. lift decreases and drag increases. lift and drag decrease.

Question 75-6 : Forces acting on an aircraft lift acts ?

Perpendicular to relative wind.

exemple 95: Perpendicular to relative wind
Parallel to drag. parallel to relative wind. parallel to mean geometric chord.

Question 75-7 : Forces acting on an aircraft lift and drag vary ?

As the square of the speed.

exemple 99: As the square of the speed
Inversely with the speed. at twice the speed. as the square root of the speed.

Question 75-8 : Forces acting on an aircraft drag acts ?

Parallel to relative wind.

exemple 103: Parallel to relative wind
Parallel to mean geometric chord. parallel to lift. perpendicular to relative wind.

Question 75-9 : 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 107: Be greater than in straight flight
Be equal to weight. the same than in straight flight. be lesser than in straight flight.

Question 75-10 : 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.

exemple 111: 1 and 3
1 and 4. 2 and 3. 2 and 4.

Question 75-11 : Forces acting on an aircraft during a straight and steady flight ?

Lift is equal to weight.

Question 75-12 : Forces acting on an aircraft all other things being equal when altitude increases ?

Lift and drag decrease.

exemple 119: Lift and drag decrease
Lift decreases and drag increases. lift increases and drag decreases. lift and drag increase.

Question 75-13 : Forces acting on an aircraft all other things being equal when temperatures increases ?

Lift and drag decrease.

Question 75-14 : Propellers & rotors from the hub to the tip of a propeller blade the angle of attack ?

Decreases.

Question 75-15 : Propellers & 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.


~

Exclusive rights reserved. Reproduction prohibited under penalty of prosecution.

1109 Free Training Exam