Section 3 - Just Answers

11. (Refer to figure 15) Between 1000Z and 1200Z the visibility at KMEM is forecast to be A. 3 statute miles B. 1/2 statute mile C. 6 statute miles

A

15. What measurement can be used to determine the stability of the atmosphere? A. Actual lapse rate B. Atmospheric pressure C. Surface temperature

A

18. (Refer to Figure 12) The wind direction and velocity at KJFK is from: A. 180 degrees true at 4 knots B. 180 degrees magnetic at 4 knots C. 040 degrees true at 18 knots.

A

2. The minimum distance from clouds required for sUAS part 107 operations is A. 500 feet below, 2,000 feet horizontally B. clear of clouds C. 500 feet above, 1,000 feet horizontally

A

20. A strong steady wind exists out of the north. Yu need to photograph an area to the south of your location. You are located in an open field with no obstructions. Which of the following is not a concern during this operation? A. Turbulent conditions will likely be a significant factor during the operation B. Strong wind conditions may consume more battery power at a faster rate than in calm conditions C. Strong wind may exceed the performance of the sUAS making it impossible to recover

A

22. What causes variations in altimeter settings between weather reporting points? A. Unequal heating of the Earth's surface B. Variation of terrain elevation C. Coriolis force

A

24. What conditions are necessary for the formation of thunderstorms? A. High humidity, lifting force, and unstable conditions B. High humidity, high temperature, and cumulus clouds C. Lifting force, moist air, and extensive cloud cover

A

28. Thunderstorms reach their greatest intensity during the A. mature stage B. downdraft stage C. cumulus stage

A

29. A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is known as A. squall line B. prefrontal system C. dry line

A

31. If the outside air temperature (OAT) at a given altitude is warmer than standard, the density altitude is A. higher than pressure altitude B. equal to pressure altitude C. lower than pressure altitude

A

33. (Refer to Figure 20) Over which area should a remote pilot expect to find the highest amount of thermal currents under normal conditions? A. 2 B. 7 C. 5

A

34. (Refer to Figure 15) According to the KMEM forecast, what is the earliest time on the 12th (today) at which the visibility may be reduced below the 3SM minimum for sUAS operations? A. 2000Z B. 1720Z C. 2200Z

A

38. An air mass moving inland from the coast in winter is likely to result in A. fog B. rain C. frost

A

40. If there is thunderstorm activity in the vicinity of an airport at which you plan to land, which hazardous atmospheric phenomenon might be expected during recovery/landing of the sUAS? A. Wind-shear turbulence B. Precipitation static C. Steady Rain

A

43. (Refer to Figure 12) What are the current conditions for Chicago Midway Airport (KMDW)? A. Sky 700 feet overcast, visibility 1-1/2 SM, rain B. Sky 7,000 feet overcast, visibility 1-1/2 SM, heavy rain C. Sky 700 feet overcast, visibility 11, occasionally 2 SM, with rain

A

45. What would decrease the stability of an air mass? A. Warming from below B. Cooling from below C. Decrease in water vapor

A

46. One of the most easily recognized discontinuities across a front is A. a change in temperature B. an increase in cloud coverage C. an increase in relative humidity

A

50. Which type of weather phenomenon that may concern a remote pilot is common among cold fronts? A. Thunderstorms and heavy rain B. Long term periods of reduced visibility C. Long periods of steady precipitation

A

6. What are characteristics of a moist, unstable air mass? A. Turbulence and showery precipitation B. Poor visibility and smooth air C. Haze and smoke

A

8. One weather phenomenon which will always occur when flying across a front is a change in A. wind direction B. type of precipitation C. stability of the air mass

A

1. The presence of ice pellets at the surface is evidence that there A. are thunderstorms in the area B. is a temperature inversion with freezing rain at a higher altitude C. has been cold frontal passage

B

14. (Refer to Figure 15) What is the forecast wind for KMEM from 1600Z until the end of the forecast? A. No significant wind B. Variable in direction at 6 knots C. Variable in direction at 4 knots

B

16. Which factor would tend to increase the density altitude at a given airport referenced in the weather briefing? A. An increase in barometric pressure B. An increase in ambient temperature C. A decrease in relative humidity

B

17. Low level turbulence can occur and icing can become hazardous in which type of fog? A. Rain induced fog B. Steam Fog C. Upslope Fog

B

19. During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts? A. Cumulus B. Dissipating C. Mature

B

25. What feature is normally associated with the cumulus stage of a thunderstorm? A. Roll cloud B. Continuous updraft C. Frequent lightning

B

30. One in-flight condition necessary for structural icing to form is A. sall temperature dew point spread B. visible moisture C. stratiform clouds

B

36. What are the characteristics of stable air? A. Good visibility and steady precipitation B. Poor visibility and steady precipitation C. Poor visibility and intermittent precipitation

B

37. While operating around buildings, the remote PIC should be aware of the creation of wind gusts that A. enhance stability and imagery B. change rapidly in direction and speed causing turbulence C. increase performance of the aircraft

B

39. In which situation is advection fog most likely to form? A. A warm, moist air mass on the windward side of mountains B. An air mass moving inland from the coast in winter C. A light breeze blowing colder air out to sea

B

44. To get a complete weather overview for the planned flight, the remote pilot in command should obtain A. An outlook briefing B. a standard briefing C. An abbreviated briefing

B

47. Which statement is true concerning ASOS/AWOS weather reporting systems? A. Each AWOS station is part of a nationwide of weather reporting stations B. ASOS locations perform weather observing functions necessary to generate METAR reports C. Both ASOS and AWOS have the capability of reporting density altitude, as long as it exceeds the airport elevation by more than 1,000 feet.

B

48. Which is considered to be the most hazardous condition when flying an sUAS in the vicinity of thunderstorms? A. Static electricity B. Lightning C. Wind shear and turbulence

B

49. How would high density altitude affect the performance of a small unmanned aircraft? A. No change in performance B. Increased performance C. Decreased performance

B

7. In which environment is aircraft structural ice most likely to have the accumulation rate? A. Cumulus clouds with below freezing temperatures B. Freezing rain C. Freezing drizzle

B

9. A stable air mass is most likely to have which characteristic? A. Showery precipitation B. Poor surface visibility C. Turbulent air

B

10. What is the expected duration of an individual microburst? A. Two minutes with maximum winds lasting approximately 1 minute B. One microburst may continue for as long as 2 to 4 hours C. Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation

C

12. (Refer to Figure 15) In the TAF for KMEM, what does " SHRA" stand for? A. A significant change in precipitation is possible B. A shift in wind direction is expected C. Rain Showers

C

13. What minimum visibility is required for sUAS operations? A. 4 miles B. 1 miles C. 3 miles

C

21. What situation is most conducive to the formation of radiation fog? A. Moist, tropical air moving over cold offshore water B. The movement of cold air over much warmer water C. Warm, moist air over low, flatland areas on clear, calm nights

C

23. Thunderstorms which generally produce the most intense hazard to aircraft are A. steady state thunderstorms B. warm front thunderstorms C. squall line thunderstorms

C

26. Which of the following considerations is most relevant to a remote PIC when evaluating unmanned aircraft performance? A. The number of available ground crew B. The type of sUAS operation C. Current weather conditions

C

27. What types of fog depend upon wind in order to exist? A. Radiation fog and ice fog B. Steam fog and ground fog C. Advection fog and upslope fog

C

3. What is the best way for a remote pilot to determine the likelihood of local fog formation? A. Monitor the wind conditions to insure the wind speed is not increasing B. Monitor the barometric pressure to insure that it is not decreasing C. Monitor the temperature / dew point spread

C

32. Upon your preflight evaluation of weather, the forecasts you reference state there is an unstable air mass approaching your location. Which would not be a concern for your impending operation? A. Thunderstorms B. Turbulent conditions C. Stratiform clouds

C

35. The development of thermals depends upon A. a counterclockwise circulation of air B. temperature inversions C. solar heating

C

4. Which weather phenomenon is always associated with a thunderstorm? A. Heavy rain B. Hail C. Lightning

C

41. Which weather phenomenon signals the beginning of the mature stage of a thunderstorm? A. the appearance of an anvil top B. maximum growth rate of the clouds C. Precipitation beginning to fall

C

42. What are the standard temperatures and pressure values for sea level? A. 59 degrees C and 1013.2 millibars B. 59 degrees E and 29.92 millibars C. 15 degrees C and 29.92 Hg

C

5. What effect does high density altitude have on the efficiency of a UA propeller? A. Density altitude does not affect propeller efficiency B. Propeller efficiency is increased C. Propeller efficiency is decreased

C