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Question 28-1 : A significant part of the loss of wing lift can be attributed to ? [ Professional Yuneec ]

Leading edge contamination

exemple 28 Leading edge contamination.

Question 28-2 : The person who ensures that the drone is serviceable for flight is ?

The pilot

exemple 32 The pilot.

Question 28-3 : Frost ice or snow on a wing will ?

Increase the stall speed and reduce the rate of climb

exemple 36 Increase the stall speed and reduce the rate of climb.

Question 28-4 : The risk of losing visual line of sight of the small rpa is increased when you are operating in ?

In an urban area

exemple 40 In an urban area.

Question 28-5 : The main risk associated with frost contamination on your remotely piloted aircraft is ?

A lift decrease leading to degrade flight performance

exemple 44 A lift decrease leading to degrade flight performance.

Question 28-6 : Portable electronic devices at or near the control station are ?

Only allowed if the pilot can confirm that they will not interfere with the command and control link before and during flight

exemple 48 Only allowed if the pilot can confirm that they will not interfere with the command and control link before and during flight.

Question 28-7 : Figures published on aircraft performance capabilities are always related to ?

Standard atmosphere

exemple 52 Standard atmosphere.

Question 28-8 : Aircraft performance may be seriously affected by frost ice or snow on the wings and control surfaces primarily because of the .1 increase in gross weight.2 disruption of smooth airflow.3 strong possibility that the control hinges will freeze.4 adverse movement of the c of g.the combination ?

1 2 3 4

exemple 56 1, 2, 3, 4.

Question 28-9 : Aircraft performance .during a steady horizontal turn the stall speed ?

Increases with the square root of the load factor


Question 28-10 : Aircraft performance .which of the following combinations adversely affects take off and initial climb performance ?

High temperature and high relative humidity


Question 28-11 : For a fixed wing drone airplane type the best angle of climb ?

Permits the largest gain of altitude in a given distance


Question 28-12 : For a fixed wing drone airplane type the best rate of climb ?

Permits to travel the greatest distance in a given time

exemple 72 Permits to travel the greatest distance in a given time.

Question 28-13 : What information message from the aeronautical service will inform about the presence of thunderstorm ?

The aerodrome routine weather reports metar's

exemple 76 The aerodrome routine weather reports (metar's).

Question 28-14 : What weather service is especially helpful in determining the presence of a thunderstorm ?

Aerodrome routine meteorological reports metar's

exemple 80 Aerodrome routine meteorological reports (metar's).

Question 28-15 : If there is unintended contact between an animal and a small rpa the pilot is required to ?

Cease operations until such time as corrective actions have been taken and risk of reoccurrence has been eliminated

exemple 84 Cease operations until such time as corrective actions have been taken and risk of reoccurrence has been eliminated.


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