viserfly

Questions for TURBULENCE 1

Answer the following questions

1. Low level vertical wind shear can be expected during the night
2. In which zone of a jet stream is the strongest CAT to be expected?
3. Fallstreaks or virga are?
4. Which degree of aircraft turbulence is determined by the following ICAO description? “There may be moderate changes in aircraft attitude and/or altitude but the aircraft remains in positive control at all times. Usually, small variations in air speed. Changes in accelerometer readings of 0.5 to 1.0 g at the aircraft’s enter of gravity. Occupants feel strain against seat belts. Loose objects move about. Food service and walking is difficult.”
5. A wide body aircraft takes off on a clear night in Dhahran, Saudi Arabia. Shortly after take off the aircraft’s rate of climb drops to zero. This can be due to
6. Which of the following conditions are most favourable to the formation of mountain waves?
7. What is the effect of a strong low level inversion?
8. Which cloud type may indicate the presence of severe turbulence?
9. At the top of orographic waves, in mountainous regions, the cloud most likely to be encountered is
10. What units are used to report vertical wind shear?
11. All pilots encountering Clear Air Turbulence are requested to report it. You experience CAT which causes passengers and crew to feel definite strain against their seat belt or shoulders straps. Unsecured objects are dislodged. Food service and walking are difficult. This intensity of CAT should be reported as
12. A flight is to depart from an airport with runways 09 and 27. Surface wind is 270/05; an inversion is reported at 300 feet with turbulence and wind shear. The wind just above the inversion is 090/30. What is the safest departure procedure?
13. Which cloud type may indicate the presence of severe turbulence?
14. On a clear summer day, turbulence caused by solar heating is most pronounced
15. How does moderate turbulence affect an aircraft?
16. The turbulence which occurs at high flight levels (above FL 250) is mainly of the type Clear Air Turbulence. In what way can moderate to severe Clear Air Turbulence affect an aircraft, the flight and the passengers?
17. At the top of orographic waves, in mountainous regions, the cloud most likely to be encountered is
18. A zone of strong convection currents is encountered during a flight. In spite of moderate gust you decide to continue the flight. What are your precautionary measures?
19. The degree of clear air turbulence experienced by an aircraft is proportional to the
20. Vertical wind shear is
21. The presence of altocumulus lenticularis is an indication of the
22. Under which of the following conditions is the most severe CAT likely to be experienced?
23. Low level wind shear is likely to be greatest
24. The most dangerous low level wind shears are encountered
25. You intend to carry out a VFR flight over the Alps, on a hot summer day, when the weather is unstable. What is the best time of day to conduct this flight?
26. What is normally the most effective measure to reduce or avoid CAT effects?
27. Above and below a low level inversion the wind is likely to
28. The vertical extent of the friction layer depends primarily on