Weather Quiz 2

Question 1

1. What feature is normally associated with the cumulus stage of a thunderstorm?

• Roll cloud
• Frequent lightning
• Continuous updraft

Answer 1

Continuous updraft

Question 2

2. Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?

• The appearance of an anvil top
• Precipitation beginning to fall
• Maximum growth rate of the clouds

Answer 2

Precipitation beginning to fall

Question 3

3. (Refer to Figure 23.) What are the VFR minimum visibility requirements over Plantation Airport?

• 1 SM
• 3 SM
• 5 SM

Answer 3

3 SM

Question 4

4. What minimum visibility is required for sUAS operations?

• 3 miles
• 1 miles
• 4 miles

Answer 4

3 miles

Question 5

5. What conditions are necessary for the formation of thunderstorms?

• Lifting force, moist air, and extensive cloud cover
• High humidity, high temperature, and cumulus clouds
• High humidity, lifting force, and unstable conditions

Answer 5

High humidity, lifting force, and unstable conditions

Question 6

6. Where are squalls most likely to form?

• At any altitude
• Low altitude
• High altitude

Answer 6

At any altitude

Question 7

7. The minimum distance from clouds required for sUAS part 107 operations is

• Clear of clouds
• 500 feet below 2,000 feet horizontally
• 500 feet above, 1,000 feet horizontally

Answer 7

500 feet below 2,000 feet horizontally

Question 8

8. A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is known as a

• Pre frontal system
• Squall line
• Dry line

Answer 8

Squall line

Question 9

9. Which weather phenomenon is always associated with a thunderstorm?

• Lightning
• Hail
• Heavy rain

Answer 9

Lightning

Question 10

10. Thunderstorms reach their greatest intensity during the

• Cumulus stage
• Downdraft stage
• Mature stage

Answer 10

Mature stage

Question 11

11. In what stage are thunderstorms the strongest?

• Mature
• Cumulus
• Dissipating

Answer 11

Mature

Question 12

12. 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?

• Turbulent conditions
• Thunderstorms
• Stratiform clouds

Answer 12

Stratiform clouds

Question 13

13. What are the characteristics of stable air?

• Poor visibility and intermittent precipitation
• Poor visibility and steady precipitation
• Good visibility and steady precipitation

Answer 13

Poor visibility and steady precipitation

Question 14

14. (Refer to Figure 69) You are inspecting the lighted towers approximately 8 NM SW of the Corpus Christi Intl airport (CRP). What is the lowest cloud cover that will enable you to inspect the top of the tower?

• 1,054 feet MSL
• 1,104 feet MSL
• 1,604 feet MSL

Answer 14

1,604 feet MSL

Question 15

15. What would decrease the stability of an air mass

• Decrease in water vapor
• Cooling from below
• Warming from below

Answer 15

Warming from below

Question 16

16. A stable air mass is most likely to have which characteristic?

• Turbulent air
• Poor surface visibility
• Showery precipitation

Answer 16

Poor surface visibility

Question 17

17. What is the expected duration of an individual microburst?

• Two minutes with maximum winds lasting approximately 1 minute
• Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation
• One microburst may continue for as long as 2 to 4 hours

Answer 17

Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation

Question 18

18. What measurement can be used to determine the stability of the atmosphere?

• Surface temperature
• Atmospheric pressure
• Actual lapse rate

Answer 18

Actual lapse rate

Question 19

19. What are characteristics of a moist, unstable air mass?

• Poor visibility and smooth air
• Haze and smoke
• Turbulence and showery precipitation

Answer 19

Turbulence and showery precipitation

Question 20

20. You have received an outlook briefing from flight service through 1800wxbrief.com. The briefing indicates you can expect a low-level temperature inversion with high relative humidity. What weather conditions would you expect?

• Light wind shear, poor visibility, haze, and light rain
• Turbulent air, poor visibility, fog, low stratus type clouds, and showery precipitation
• Smooth air, poor visibility, fog, haze, or low clouds

Answer 20

Smooth air, poor visibility, fog, haze, or low clouds

Question 21

21. (Refer to Figure 23, Area 4.) What is the required flight visibility for a remote pilot operating an unmanned aircraft near the Plantation Airport (JYL)?

• 3 statute miles
• 1 statute mile
• 5 statute miles

Answer 21

3 statute miles

Question 22

22. The weather report lists the ceiling at 800 feet. What is the highest you can operate your sUAS?

• 800 feet AGL
• 300 feet AGL
• 200 feet AGL

Answer 22

300 feet AGL

Question 23

23. Which is considered to be the most hazardous condition when flying an sUAS in the vicinity of thunderstorms?

• Wind shear and turbulence
• Static electricity
• Lightning

Answer 23

Lightning

Question 24

24. Thunderstorms which generally produce the most intense hazard to aircraft are

• Warm front thunderstorms
• Squall line thunderstorms
• Steady state thunderstorms

Answer 24

Squall line thunderstorms

Question 25

25. (Refer to Figure 78.) What is the minimum base of the cloud layer to fly to the top of the towers 4 NM east of Onawa (K36)? - 292 feet AGL - 792 feet AGL - 1,335 feet MSL

Answer 25

792 feet AGL

Question 26

26. 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? - Precipitation static - Wind-shear turbulence - Steady Rain

Answer 26

Wind-shear turbulence

Question 27

27. During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts? - Cumulus - Mature - Dissipating

Answer 27

Dissipating