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Test - PL A

1. 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.

2. When air flow is laminar:

there is a relative mix of streamlines but at the end of given aerofoil there are no significant eddies in the flow. there is no relative mix of streamlines. there is a relative mix of streamlines.

3. The glide ratio relative to ground:

is changing with weight changes. is changing when flying in wind. is not changing when flying in wind because the bearing area is still the same.

4. The centre of gravity of an aircraft:

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

5. Glide ratio is influenced only by:

the velocity of flow. total weight. the angle of attack (i.e. lift and drag coefficients).

6. Induced drag:

arises as a result of parasitic energy induced by air rfiction around an aircraft. arises as a result of interference between flows around different parts of an aircraft. arises as a result of air flow from the lower wing surface, around the wingtip, towards the upper wing surface due to a pressure difference.

7. At minimum speed:

the paraglider or powered paraglider will fly the longest. the paraglider or powered paraglider will fly the farthest. the paraglider or powered paraglider is close to stall.

8. Turbulent flow is:

the flow of air particles in the same direction. when the air particles are not moving. the flow of air particles in different directions.

9. What type of precipitation can be expected on an active cold front?

Showers and thunderstorms. Light persistent rain. Drizzle.

10. Which of the phenomena occurring on the II. kind cold front are particularly dangerous for low-flying aircraft?

Strong turbulence limited to the narrow space of vortex - the microburst, with axis approximately at the base of Cb - cumulonimbus cloud. High pressure and temperature drop. Drop of cloud base, sometimes even to the ground.

11. A cold front progresses faster than a warm front, the warm sector at the ground level gradually narrows and the warm air in this region is forced up into the higher layers. This process is called:

cyclone filling. oclusion. cyclone extinction.

12. The basic cause of mechanical turbulence is:

the air mass humidity and temperature. wind and configuration of terrain. the air mass stratification.

13. Mass storms occur:

mostly during the night. anytime. mostly in the afternoon and evening in the hours of the highest ground temperatures.

14. The land breeze:

blows at night and is weaker than the see breeze. blows during a day and is weaker than the see breeze. blows during a day and is stronger than the see breeze.

15. Air density:

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

16. So called escaping maneuvers include:

spiral, big ears and B-stall. spiral, spin and B-stall. spiral, full-stall and B-stall.

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

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

18. I increase the flight speed by:

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

19. Spiral is performed by:

pulling at first both the brakes and then loosening one brake all the way up while the other pulling completely down - the paraglider descends circling in a dynamic and fast rotation. weight shift in the intended turning side, pulling the steering on that side and pulling down the front riser on the other side. a smooth transition from a turn into sharper and sharper turn via gradually increased brake input and body weight shift in the same side in which turning.

20. The take off direction and place choice is subject to:

the wind reported by the nearest meteorological station. the wind at the take off considering the wind direction above the mountain ridge. the wind in the valley by the landing zone.

21. What does the term „spin” mean?

A spiral. Symmetric paragider stall. Asymmetrical (one side) paraglider stall.

22. 225 degrees is direction:

south east. north west. south west.

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

topographic situation. map projections. topographic area.

24. An aircraft on bearing 265 in a wind 085 is flying:

against the wind. perpendicularly to the wind from left. with the wind.

25. The prime meridian is:

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

26. The difference between UTC and Central European Summer Time (CEST) time is:

There is no difference. 2 hours. 1 hour.

27. 045 degrees is direction:

north east. south west. north west.

28. If the steering line brakes, the correct procedure is:

steering by another suitable line and the other steering line or, if there is enough hight, use the reserve parachute. turning only in the side where the steering line is OK. steering via weight shift and cautious pulling of the rear risers.

29. If a pilot is being dragged by strong wind along the ground, he should:

wait until the glider stops itself. pull the A risers or lines. pull the steering lines or rear lines/risers.

30. You miscounted the landing approach and need to shorten it. You are 30 m above the ground:

In such altitude is best to make a 360 turn. By pulling tips of the wing via the right lines you can reduce the effective surface of the wing and glide under a better angle to the ground. By flying in figure eight or S turns you loose hight before the final glide.

31. During flight a pilot should have his cellphone (if it is available):

in the back harness pocket so it could not break or harm the pilot in case of accident. in a place, where he can reach it by any hand from the flying position. in any place, because he cannot telephone during flight anyway.

32. For emergency landing a pilot would rather choose:

a lonely tree. a forest road. dense forest.

33. A glider with an asymmetric collapse tends to:

fly on, but pilots tend to do unwise piloting inputs. turn rapidly to the side with the collapse and then rotate or slowly return into straight flight. fall quickly and therefore it is necessary to prevent such situations at any cost.

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

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

35. Except for takeoff or landing, or except by permit issued by the Aviation Authority, a VFR flight must be conducted over the congested areas or gathering of people in the open air at a height that may not be less than:

300 m above the highest obstacle within a radius of 600 m from the aircraft. 150 m above the highest obstacle within a radius of 600 m from the aircraft. 300 m above the highest obstacle within a radius of 300 m from the aircraft.

36. Flying a paraglider is allowed:

from sunset to sunrise. 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.

37. To recalculate a figure in meters into figure in feet we use the simplified formula:

(m : 10) x 3 (m x 3) : 10 (m x 3) + 10%

38. The minimum age of student for beginning of theoretical and practical paragliding training in the Czech Republic is:

16 years with the consent of his legal guardians. 15 years with the consent of his legal guardians. 14 years with the consent of his legal guardians.

39. Can I meet an airliner in Class E airspace?

Yes. No. Only in clouds.

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

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

41. Risers are:

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

42. A paraglider is the most damaged by:

UV rays, wet storage and abrasion. sun and wrong packing. winch tow flying, powered paragliding and operation on wet grass.

43. Treatment of wounds and fractures fixation of the afflicted by the accident is in the first aid performed:

always as a priority on any wound or fracture. only after the afflicted is out of vital functions malfunction danger. always if there are gaping (deep) wounds and/or open fractures.

44. During ridge soaring after a collapse about 10 meters above ground a pilot landed hard on his left side; He is obviously shaken, however gets up, then collapses, is pale, reports pain in his hip, shakes, he wants to sleep, a little confused, but strictly refuses an offered call for an ambulance. The procedure will be:

We lay him in the anti-shock position with his feet up, cover him and call an ambulance. We are trying to calm him down, keep him in a position which is the most comfortable for him, cover him and call the emergency services. We lay him in shade into semi sitting position and check him occasionally during flying. If his condition gets worse, we call help.

45. Choose the true statement about using the thermal („space”) blanket:

The foil is a very good thermal isolation but does not protect against moisture - it can leak in strong rain. The side doesn’t matter, the important is to wrap it tightly all around the patient. This blanket can be also used as a tourniquet or improvised bandage.

46. During an improvised transport of an unconscious afflicted:

caution is not important because the unconscious afflicted doesn’t feel pain anyway. special attention should be payed to caution and head fixation. the process should be as fast as possible.

47. If it is obvious that the action of rescue helicopter is necessary, in the Czech Republic it is preferably needed to call number:

1210 155 112

48. If the unconscious afflicted is not breathing:

We start the resuscitation immediately. We promptly transport him to the professional medical service. First we try to free the airway.

49. The most essential first aid actions that can be performed in the event of serious accident are:

to stop heavy bleeding, clearing the airway and fight against heat loss. fixing the bone fractures, treatment of wounds and abrasions. gentle transportation to the place of professional help.

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

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