Weather Quiz 2 Flashcards
1
Q
- What feature is normally associated with the cumulus stage of a thunderstorm?
- Roll cloud
- Frequent lightning
- Continuous updraft
A
Continuous updraft
2
Q
- 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
A
Precipitation beginning to fall
3
Q
- (Refer to Figure 23.) What are the VFR minimum visibility requirements over Plantation Airport?
- 1 SM
- 3 SM
- 5 SM
A
3 SM
4
Q
- What minimum visibility is required for sUAS operations?
- 3 miles
- 1 miles
- 4 miles
A
3 miles
5
Q
- 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
A
High humidity, lifting force, and unstable conditions
6
Q
- Where are squalls most likely to form?
- At any altitude
- Low altitude
- High altitude
A
At any altitude
7
Q
- 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
A
500 feet below 2,000 feet horizontally
8
Q
- 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
A
Squall line
9
Q
- Which weather phenomenon is always associated with a thunderstorm?
- Lightning
- Hail
- Heavy rain
A
Lightning
10
Q
- Thunderstorms reach their greatest intensity during the
- Cumulus stage
- Downdraft stage
- Mature stage
A
Mature stage
11
Q
- In what stage are thunderstorms the strongest?
- Mature
- Cumulus
- Dissipating
A
Mature
12
Q
- 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
A
Stratiform clouds
13
Q
- What are the characteristics of stable air?
- Poor visibility and intermittent precipitation
- Poor visibility and steady precipitation
- Good visibility and steady precipitation
A
Poor visibility and steady precipitation
14
Q
- (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
A
1,604 feet MSL
15
Q
- What would decrease the stability of an air mass
- Decrease in water vapor
- Cooling from below
- Warming from below
A
Warming from below
16
Q
- A stable air mass is most likely to have which characteristic?
- Turbulent air
- Poor surface visibility
- Showery precipitation
A
Poor surface visibility
17
Q
- 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
A
Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation
18
Q
- What measurement can be used to determine the stability of the atmosphere?
- Surface temperature
- Atmospheric pressure
- Actual lapse rate
A
Actual lapse rate
19
Q
- What are characteristics of a moist, unstable air mass?
- Poor visibility and smooth air
- Haze and smoke
- Turbulence and showery precipitation
A
Turbulence and showery precipitation
20
Q
- 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
A
Smooth air, poor visibility, fog, haze, or low clouds
21
Q
- (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
A
3 statute miles
22
Q
- 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
A
300 feet AGL
23
Q
- 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
A
Lightning
24
Q
- Thunderstorms which generally produce the most intense hazard to aircraft are
- Warm front thunderstorms
- Squall line thunderstorms
- Steady state thunderstorms
A
Squall line thunderstorms
25
Q
- (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
A
792 feet AGL
26
Q
- 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
A
Wind-shear turbulence
27
Q
- During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
- Cumulus
- Mature
- Dissipating
A
Dissipating
