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Test - PL A

1. The centre of gravity of an aircraft:

is a point where the resultant aerodynamic force and force of gravity acts. is a point where the force of gravity acts. is a point where the resultant aerodynamic force acts.

2. A paraglider stall occures when:

the glider overcomes the pilot when taking off. the pilot breaks too much. the speed system is pushed too fast.

3. How the speed system works?

It decreases the angle of attack by pulling the front risers. Sometimes it deforms the aerofoil shape. It decreases the angle of attack by releasing the rear risers. It increases the angle of attack by pulling the front risers.

4. In a normal steady flight:

there is overpressure on the upper surface and negative pressure on the lower surface of the wing. there is negative pressure on the upper surface and overpressure on the lower surface of the wing. there is overpressure on the upper and lower surface of the wing.

5. When a paraglider is in steady flight in an ideal environment (no wind) at a glide ratio 6, then it means that:

it will fly 6 km far from the altitude of 1 km. it will fly 1 km far from the altitude of 6 km. its velocity is 6 m/s.

6. When an aircraft is flying with such an angle of attack that its gliding ratio is ', it means that:

it is flying under an angle 10° towards the ground. it will fly 10 km far from altitude 1 km in no wind. it will fly 1 km in 10 s.

7. Lift arises when an aerofoil is in flow due to the creation of a pressure differential above and below the aerofoil. What is the pressure below and above the aerofoil and what is the ratio of their sizes at normal angles of attack?

There is overpressure below the aerofoil and negative pressure above the aerofoil in the ratio of 1/3 of overpressure and 2/3 of negative pressure. There is overpressure below the aerofoil and negative pressure above the aerofoil in the ratio of 1/3 of overpressure and 2/3 of negative pressure.

8. The induced drag can be reduced by:

the wing arrow and air foil thickness. aspect ratio and favorable wing tip shape. the air foil thickness and special

9. Among the clouds with a great vertical development is:

Cb – cumulonimbus Cc – cirocumulus Ac – altocumulus

10. The air density of the atmosphere with altitude:

decreases. increases. doesn't change.

11. Air density:

decreases with decreasing air temperature. increases with decreasing air temperature. increases with increasing air temperature.

12. Convective activity in the mid-latitudes is the greatest:

at noon. in winter at midday. in summer at midday.

13. The boundary between two air masses, with the weather in one air mass significantly differing from the weather in the other air mass is called:

Weather boundary. Front. Air masses boundary.

14. The main cause of atmospheric convection is:

the day and night temperature difference. sufficient air heating on the earth's surface during unstable stratification. uneven heating of the earth's surface of different colors.

15. What will be the surface wind characteristics in the area where on the surface meteorological map there are isobars close together?

Strong wind blowing approximately along the isobars. Weak wind blowing along the isobars. Strong wind blowing perpedicularly to the isobars.

16. B-stall is performed by:

by gradual pulling the first row risers. by pulling the second row risers. by gradual pulling the rear row risers.

17. By releasing the speed system the flight speed is:

decreased. unaffected; only the angle of attack increases. increased.

18. What are the possible wind direction indicators in a strange place where there is no wind sock?

Grass waves, smoke, tree shaking, moving dust or other light objects in the air. Positions of gliders on the ground which landed earlier. Circling of birds of prey, direction of cloud shades movement and waves on water surfaces.

19. When entering a thermal current:

the glider usually tends to collapse and therefore the pilot should break a bit before turning. the canopy always tends to collapse and therefore the pilot must brake. the glider informs the pilot by its movements about the strength of the lift and usually also about which direction is better to turn.

20. I increase the flight speed by:

depressing the speed system. pulling the trimmers. pulling a bit of steering.

21. An asymmetric collapse of about 1/2 of the leading edge should be solved by:

weight shift into the non collapsed side and light break of the same side to keep the glider in straight flight. no inputs in steering letting the glider reinflate. weight shift into the collapsed side and light break of the non collapsed side to keep the glider in straight flight.

22. Terrain formations such as forests, meadows, lakes, castles, roads, railways etc. are called:

map projections. topographic situation. topographic area.

23. Contour lines are curves connecting points of the same:

alitude. negative hight, so called dephtines. declination.

24. The difference between UTC and Central European (CET) time is:

2 hours. There is no difference. 1 hour.

25. The prime meridian is:

meridian, also called the base meridian, passing through Greenwich Observatory in England. a meridian not passing through observatory in Greenwich, but only a small circle. the meridian, at which the latitude and longitude equal 0.

26. The earth axix is a line intersecting the center of the earth perpendicularly to the equator. The points where this line intersects the earth surface are called poles and they are:

the marine poles. the magnetic poles. the geological poles.

27. Magnetic course is measured:

from prime meridian. from bearing indicator. from geographical north of local meridian.

28. The best when blown behind a ridge is: Při přefouknutí přes kopec je nejbezpečnější

to fly with the wind as far as possible to a possible emergency landing field. to use a reserve parachute which is more stable in turbulences. to do big ears which will help to fly through turbulences by increasing surface load of the wing.

29. When flying on speed system:

The paraglider will increase its speed and it will be more stabile thanks to better flow. The paraglider will increase its speed and will be more prone to symmetrical or asymmetrical collapses. The paraglider is prone to symmetrical or asymmetrical collapses.

30. When sucked in a vertically developed cloud the best to do is:

to perform the most effective escape maneuver and try to keep flying against the wind. to keep circling through the cloud as high as possible and so fly over it. to steer the glider straight into the lightest part of the cloud.

31. Before a landing into still water it is necessary:

to undo the harness buckles so it was possible to leave it at the moment of contact with water. to jump out of the harness about 3 to 5 m above the water surface. to turn the glider against the wind.

32. Your special equipment for safety maneuvers training should be:

a life jacket and a flare. a life jacket, a hook knife for cutting lines or risers. a life jacket, an orange helmet and light shoes.

33. For emergency landing You would prefer:

water. buildings. trees.

34. Flying a paraglider is allowed:

only during a day, which means between morning civil twilight and evening civil twilight or in a similar period of time which can be designated by a competent authority. in VFR conditions during a day; a day is considered as a time period between sunrise and sunset. from sunset to sunrise.

35. To indicate the height after passing through the transition altitude the setting goes from QNH values:

to the altimeter setting at the value of 1013.2 hPa and vertical positions of the aircraft are expressed in flight levels. to the altimeter setting at QFE and vertical positions of the aircraft are expressed as hight above the ground. to the altimeter setting at QFE of the target airport and vertical positions of the aircraft are expressed in hight over the target airport.

36. The period of validity of the medical certificate on health ability for Czech pilots is:

36 months for persons between 30 and 60 years of age. 24 months for persons between 35 and 60 years of age. 12 months for persons above 60 years of age.

37. A proof of liability insurance must be on board during all flights.

Yes. No. Not during an airport flight.

38. Except for takeoff or landing or except by permission issued by the Authority a VFR flight must be conducted above the ground or water at a height of not less than:

150 m 150 m except for ridge soaring. 300 m

39. Verifying whether a paraglider technical certificate is valid is a duty of:

the head of air traffic. the aircraft commander (pilot). the operator.

40. The AGL abbreviation by a height data in the airspace map means:

the hight above the see level. the hight according the local atmospheric pressure. the hight above the ground level.

41. Initial examination includes:

finding the circumstances of the incident, the patient's problems and possible diseases which he is suffering. vital functions check according to the chart A-B-C. fast check of the afflicted „from head to toe” with emphasis on injury signs.

42. Risers are:

pilots who get up early. up-going thermal currents. the webbings which connect a glider's suspension lines to a pilot's harness.

43. A paraglider in a spin fell nearby. On our approach he lies on his back, unconscious, not breathing, bluish. No clearly visible injury is obvious. We'll call an ambulance and firstly:

lay the afflicted in the anti-shock position with head underlaid. lay the afflicted in the stabilized position. free the airway by backward head tilt.

44. A layperson without special training is performing resuscitation:

by chest compressions and artificial respiration in ratio 30:2. by chest compressions only. by chest compressions and artificial respiration in ratio 15:2.

45. Fractures of lower limbs are preferably fixed by:

using an improvised splint (branch, stick, etc.). hanging in a triangular bandage. tightening to the other limb (only if that is not broken too).

46. If the arrival of a rescue helicopter is expected, rescuers on the ground should stand so that:

they were in the best possible place for a landing; just before touchdown they move in front of the helicopter. they were always in the visual field of the helicopter pilot. they were evenly distributed around the expected landing site and they could prevent potential arrival of other persons.

47. The most effective anti shock precautions in laic first aid (after securing vital functions) are:

fracture fixing, wound and abrasions treatment. convenient position, thermal comfort, calming. thermal comfort, lots of sweet liquids, position on side.

48. "Secondary examination" of an injury afflicted means:

an inspection of afflicted "head to toe" in order to uncover any injury changes on body. the second (and next) control examination to determine if there is a deterioration in the status. an examination by another independent person to verify the initial conclusions.

49. Signal to perform by a person on the ground to cancel the need of rescue helicopter landing is:

to wave by any object of red color. to stand with one arm up and second arm along the body (a paraphrase of the letter N). to stand and rhythmically move arms up and down wit palms turned upwards.

50. The telephone number of medical emergency service in the Czech Republic is:

150 155 158