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Question 9-1 : Maintenance and record keeping. for technical record keeping of a drone, you do not have to note ? [ Level remote ]

The total flight hour of your aircraft since the first flight.

exemple 9 The total flight hour of your aircraft since the first flight.

Question 9-2 : Electric motors propulsion...the abbreviation corresponding to an engine that is not turning in a clockwise direction is ?

Ccw.

exemple 13 Ccw.

Question 9-3 : Electric motors propulsion...the abbreviation corresponding to an engine that is turning in a clockwise direction is ?

Cw.

exemple 17 Cw.

Question 9-4 : Electric motors propulsion...the abbreviations cw and ccw for an electrical engine mean respectively ?

Clockwise and counter clockwise directions.

exemple 21 Clockwise and counter-clockwise directions.

Question 9-5 : Electric motors propulsion...an electric motor brushless of 450 kv powered with a voltage of 24 volts will rotate at ?

10800 rpm.

Rpm = round per minute exemple 25 10800 rpm.

Question 9-6 : Batteries...connecting two 6 v / 5 ah capacity batteries in series will result in a total voltage and capacity respectively of ?

12 v / 5 ah

V = volt.ah = ampere hour exemple 29 12 v / 5 ah

Question 9-7 : Batteries...the connection in parallel of two 6 volt / 5 amp.hours batteries, will create a unit with the following characteristics ?

6 v / 10 ah.

exemple 33 6 v / 10 ah.

Question 9-8 : Batteries...'4s' is written of a lipo battery, it indicates ?

The number of cells in series.

exemple 37 The number of cells in series.

Question 9-9 : Batteries...the capacity of a battery of ?

5 ah is 5 ampere during 1 hour.

exemple 41 5 ah is 5 ampere during 1 hour.

Question 9-10 : Batteries...the capacity of a battery is the ?

Amount of ampere hours that a fully charged battery can supply.

exemple 45 Amount of ampere hours that a fully charged battery can supply.

Question 9-11 : Batteries...the capacity of a battery is given in ?

Ampere hours.

exemple 49 Ampere hours.

Question 9-12 : Batteries...voltage of a battery is expressed in ?

Volt.

exemple 53 Volt.

Question 9-13 : Batteries...associated value to the 'c' letter of a lipo battery indicates ?

The maximum continuous discharge rate of the battery.

exemple 57 The maximum continuous discharge rate of the battery.

Question 9-14 : Batteries...the term 'lipo' means ?

Lithium polymer.


Question 9-15 : Batteries...when carrying out a battery condition check using the aircraft's voltmeter ?

A load should be applied to the battery in order to give a better indication of condition.



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