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Question 31-1 : Multi rotor aircraft dynamicsfor a remotely piloted aircraft system multi rotor type to generate a roll to the left ? [ License professional ]

Engines located on the left must be reduced

Question 31-2 : Multi rotor aircraft dynamicsrefer to annex the multi rotor which will roll or bank to the right is 54 ?

Multi rotor c.

exemple 35: Multi rotor c
Multi-rotor b. multi-rotor a. multi-rotor d.

Question 31-3 : Multi rotor aircraft dynamicsrefer to annex the multi rotor which will roll or bank to the left is 54 ?

Multi rotor d.

exemple 39: Multi rotor d
Multi-rotor a. multi-rotor b. multi-rotor c.

Question 31-4 : Multi rotor aircraft dynamicsrefer to annex the multi rotor which will roll away from you is 54 ?

Multi rotor a.

exemple 43: Multi rotor a
Multi-rotor b. multi-rotor c. multi-rotor d.

Question 31-5 : Multi rotor aircraft dynamicsrefer to annex the multi rotor which is moving toward you is 54 ?

Multi rotor b.

exemple 47: Multi rotor b
Multi-rotor a. multi-rotor c. multi-rotor d.

Question 31-6 : Multi rotor aircraft dynamicsground effect will enable a helicopter or a multi rotor to hover with less power primarily due to ?

A decrease in induced drag.

exemple 51: A decrease in induced drag
An increase in downwash. a decreased lift/drag ratio. an increase in blade tip vortices.

Question 31-7 : Multi rotor aircraft dynamics'dynamic roll over' may be caused by ?

An excessive rolling movement developing about a skid or wheel in contact with a slope or uneven ground.

exemple 55: An excessive rolling movement developing about a skid or wheel in contact with a slope or uneven ground
An aerobatic manoeuvre. a phenomenon of flight controls reversibility under high load factor. a very quick stop maneuver performed by the pilot.

Question 31-8 : Multi rotor aircraft dynamicsthe positioning and navigation system mainly uses 1 a satellite based positioning system2 a magnetometer3 a vertical speed indicator4 gyroscopesthe combination regrouping all the correct statements is ?

1 2.

Question 31-9 : Multi rotor aircraft dynamicsto put in a forward motion a remotely piloted aircraft system multi rotor type ?

Speed of rotation of the front rotors must be reduced.

Question 31-10 : Multi rotor aircraft dynamicsfor a remotely piloted aircraft system multi rotor type in hover fly ?

All the engines must spin at the same speed.

Question 31-11 : Multi rotor aircraft dynamicsfor a remotely piloted aircraft system multi rotor type flight stability is ?

Provided by reverting the direction rotation of the propellers.

exemple 71: Provided by reverting the direction rotation of the propellers
Managed by a tail rotor. provided by decreasing the speed of rotation of the clockwise propellers. provided by decreasing the speed of rotation of the counter-clockwise propellers.

Question 31-12 : Multi rotor aircraft dynamicsfor a remotely piloted aircraft system multi rotor type during a hover flight the airflow moves ?

Downward through the rotor disc from the higher part to the lower part.

exemple 75: Downward through the rotor disc from the higher part to the lower part
By downwash from the rotors higher parts, without passing through. by downwash from the rotors higher and lower parts, without passing through. upward through the rotor disc, from the lower part to the higher part.

Question 31-13 : Regarding the effects of wake turbulence under a drone ?

Proximity of the ground makes wake turbulence often disastrous for a remotely piloted aircraft.

exemple 79: Proximity of the ground makes wake turbulence often disastrous for a remotely piloted aircraft
Ground effect eliminates the wake turbulence of other aircraft. multirotor drone is less likely to be subjected to wake turbulence than a fixed wing drone. wake turbulence of the aircraft flying above your drone is not dangerous.

Question 31-14 : By following the wing on the upper surface the relative airflow ?

Accelerates and creates a low pressure.

exemple 83: Accelerates and creates a low pressure
Slows down and creates a low pressure. accelerates and creates an high pressure. slows down and creates an high pressure.

Question 31-15 : Load factorfor a fixed wing aircraft airplane or glider load factor is ?

Lift weight.

exemple 87: Lift weight
Weight / lift. drag / weight. drag / lift.

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