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Question 46-1 : For a remotely piloted aircraft altitude is given by the following instruments 1 barometer 2 satellite positioning 3 ultrasonic sensor 4 infrared sensor the combination regrouping all the correct statements is ? [ Progression UAV ]
1 2
Question 46-2 : The altitude hold system mainly uses 1 a satellite positioning system 2 an ultrasonic sensor 3 a vertical speed indicator 4 a barometer the combination regrouping all the correct statements is ?
2 4.
Altitude is given by the barometer and the satellite positioning system but the altitude hold system usually uses an ultrasonic sensor coupled with the barometer to keep the altitude1 - 4. 1 - 3. 2 - 3.
Question 46-3 : After a constraint higher than the yield strength limit an aircraft part 1 returns to its original shape2 has a lower resistance3 keep its resistance characteristics4 must be replaced5 can be straightenedthe combination regrouping all the correct statements is ?
2 4.
If a part of your drone fairing propeller wing landing skid motor mount etc has exceeded its elastic limit it loses its strength it will take much less force to further damage or permanently deform it and it will break much more easily than before the proper course of action is to replace it before attempting any further flights1, 2, 5. 1, 3, 5. 1, 3, 4.
Question 46-4 : The elastic limit of a material ?
Should never be exceeded.
The elastic limit of a material is the critical value that the applied stress needs to exceed for the deformation to become permanentCan be exceeded without reaching the limit of permanent deformation. can be exceeded for short times. can be exceeded but only for specific cases.
Question 46-5 : A propeller blade includes the following elements 1 a lower surface2 an upper surface3 a leading edge4 a trailing edge5 a rotation direction6 a lift to drag ratiothe combination regrouping all the correct statements is ?
1 2 3 4 and 5.
A propeller blade is like a wing 1211, 2, 3 and 4. 5 and 6. 3, 4, 5 and 6.
Question 46-6 : An electrical systems is protected from overcurrent by ?
A fuse.
The purpose of a fuse is to melt if the current in the circuit rises above a certain threshold when it melts it cuts off the current and protects the circuitA voltage regulator. a transistor. a generator.
Question 46-7 : The direct reading magnetic compass is no more reliable when approaching 1 the magnetic poles2 the magnetic equator with a east or west heading3 the magnetic equator with a north or south headingthe combination that regroups all of the correct statements is ?
1.
Near the magnetic poles the reading is inaccurate due to the presence of an excessively strong vertical component of the earth's magnetic field1, 2, 3. 1, 3. 1, 2.
Question 46-8 : Information given by a magnetic compass is impaired by ?
A ferrous metal mass.
The reading of a magnetic compass will be affected by the presence of a ferrous metal object the ferrous metal generates a magnetic field that attracts the compass needle thereby producing an incorrect reading known as compass variation A non ferrous metal mass. the rain. the wind.
Question 46-9 : The fields affecting a magnetic compass originate from 1 magnetic masses2 ferrous metal masses3 non ferrous metal masses4 electrical currentsthe combination regrouping all the correct statements is ?
1 2 4.
A magnetic compass is a magnet so it will be affected by magnetic objects ferrous materials and electric currents that generate electromagnetism1 - 3 - 4. 1 - 2 - 3 - 4. 1 -2 - 3.
Question 46-10 : Magnetic variation can be best described as ?
The angle between the true meridian and magnetic meridian.
More informations here https wwwgeomagnrcangccamag fldmagdec enphpThe measurement of the magnetic strength between the north and south magnetic poles. the distance from the magnetic north pole to the geographical north pole. the distance between two magnetic lines.
Question 46-11 : From the statements below choose the one that represents a risk of compass error for a small remotely piloted aircraft ?
The line of faith of the compass is aligned with the transverse axis of the remotely piloted aircraft.
The line of faith of the compass must be aligned with the longitudinal axis of the droneThe compass is installed within 40 cm of the battery. the compass is installed on a carbon fiber structure. the compass is installed on the aircraft so as not to “see” the sky.
Question 46-12 : The purpose of a compass swing is to attempt to coincide the indications of ?
Compass north and magnetic north.
Geographic north and magnetic north. compass north and the drone's heading marker. compass north and geographic north.
Question 46-13 : Your magnetic compass requires ?
A regular calibration procedure.
A different setting depending on the flight's altitude. the carriage of a permanent magnet to compensate for variation. a dedicated power supply independent of the battery.
Question 46-14 : To calibrate the magnetic compass of your remotely piloted aircraft ?
It is recommended to move away from all magnetic or ferrous sources.
Calibration will be more accurate using permanent magnets. you must go through an authorized workshop. a ferrous metal mass must be positioned under your drone.
Question 46-15 : Without taking account of the instrumental error a compass shows the ?
Magnetic north.
A compass aligns itself with the earth's magnetic field and therefore points to magnetic northGrid north. true north. geographic north.
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