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Questions for AWR

Answer the following questions

1. A weather radar, set to the 100 NM scale, shows a squall at 50 NM. By changing the scale to 50 NM, the return on the radar screen should
2. The airborne weather radar is using a 5 degree beam. The cloud is detected at a range of 60 nm. If the scanner is tilted up to 5 degrees, the cloud disappears. Using trigonometry to determine the height of the tops of the cloud, in relation to the aeroplanes cruising level, select the nearest answer from the following?
3. Which of the following list of phenomena are least likely to be detect by airborne weather radar?
4. A side lobe from an aerial of a weather radar may produce an echo on the screen known as a "height ring". The pilot can use this?
5. What frequency is typical chosen for AWR systems?
6. In an AWR with a 5 degrees beam width how do you orient the scanner to receive returns from clouds that are at or below your level?
7. In an Airborne Weather Radar that has a colour cathode ray tube (CRT) the areas of greatest turbulence are indicated on the screen by
8. Ground checks of AWR are?
9. In Airborne Weather Radar (AWR), the main factors which determine whether a cloud will be detected are
10. AWR contour mode is used for?
11. An airborne weather radar unit transmits a 5 degrees beam from a parabolic dish aerial reflector assembly. If the wavelength is 4 cm, the diameter of the dish is?
12. Airborne Weather Radar has been primarily developed to detect?
13. An aircraft flying at 25 00 feet is equipped with AWR. The beam width is 5 degrees. With the radar tilted 3.5 degrees up, the radar is showing top of a cloud return at 105 nm. The approximate height of the cloud is
14. The theoretical maximum range for an airborne weather radar is determined by the?
15. In an AWR with a colour CRT areas of greater turbulence are indicated by?
16. The ISO-ECHO facility of an airborne weather radar is provided in order to
17. In the MAPPING MODE the airborne weather radar utilises a?
18. The ISO-ECHO feature of an airborne weather radar can be used to detect?
19. Which of the following cloud types is most readily detected by airborne weather radar when using the weather beam?
20. A frequency of 10 GHz is considered to be the optimum for use in airborne weather radar system because
21. To improve the detection of precipitation area(s) in e.g. Thunderstorms, in which the top of the cloud lies at or slightly above the level of flight?
22. In an Airborne Weather Radar the areas of greatest turbulence are usually indicated on the screen by?
23. The colours used on a conventional AWR to indicate increasing intensity of returns are?
24. Airborne weather radar uses a particularly high frequency radar signal, at 9 to 12 GHz, in order to?
25. In the MAPPING MODE the airborne weather radar utilises a
26. When using airborne weather radar in the mapping mode in polar areas one runs the risk?
27. On a colour airborne weather radar, a bright red echo indicates?
28. In an Airborne Weather Radar that has a colour cathode ray tube (CRT) increasing severity of rain and turbulence is generally shown by a change of colour from
29. The AWR can be used on the ground provided: 1. The aircraft is clear of personnel, buildings and vehicles. 2. The conical beam is selected. 3. Maximum up tilt is selected. 4. The AWR must never be operated on the ground
30. Which of the following is a complete list of airborne weather radar antenna stabilisation axes?
31. Airborne Weather Radars are generally based on the use of?
32. The tilt angle on the AWR at which an active cloud just disappears from the screen is 4 degrees up. If the beam width is 5 degrees and the range to the cloud is 40 nm use the 1 in 60 rule to calculate the approximate height of the cloud relative to the aircraft?
33. On the airborne weather radar display in WX mode, different colours use used?
34. A height ring is used?
35. An airborne weather radar is using a 3 degrees beam. A cloud is detected at a range of 40 nm, If the scanner is tilted up to 3 degrees the cloud disappears. The top of the cloud, in relation to the aeroplane's cruising level is approximately?
36. Before commencing a flight the weather radar should?
37. In Airborne Weather Radar (AWR), the main factors which determine whether a cloud will be detected are
38. On the AWR display the most severe turbulence will be shown?
39. Using the airborne weather radar, before take-off?
40. In which mode of operation does the aircraft weather radar use a cosecant radiation pattern?
41. When the airborne weather radar is operating in its primary mode, to detect precipitation?
42. The use of AWR on the ground is?
43. The heaviest turbulence is likely t be encountered?
44. When switching on the weather radar, after start-up, a single very bright line appears on the screen. This means that the?
45. Is is possible for weather radar to be operated on the ground?
46. In order to ascertain whether a cloud return on an Aircraft Weather Radar (AWR) is at or above the height of the aircraft, the tilt control should be set to (assume a beam width of 5 degrees)?
47. An airborne weather radar unit transmits a 4 degrees beam from a parabolic dish aerial reflector assembly. If the wavelength is 3 cm, the diameter of the dish is?
48. Which of the following lists phenomena that CANNOT be detected by weather radar?
49. In which frequency band do most Airborne Weather radars operate?
50. The "gain" control knob of an AWR adjusts?