Weather

Question 1

Advection fog

Answer 1

Sea fog; is formed when warm, moist air moves over cold ground or water

Question 2

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

Answer 2

Continuous updraft

Question 3

What does RAB35 mean?

Answer 3

Rain began 35 mins past the hour

Question 4

What is the best way for a remote pilot to determine the likelihood of local fog formation?

Answer 4

Monitor the temperature/dew point spread

Question 5

Thunderstorms which general produce the most intense hazard to aircraft are

Answer 5

Squall line thunderstorms

Question 6

What effect does high density altitude have on the efficiency of a small unmanned air craft propeller?

Answer 6

Propeller efficiency is decreased

Question 7

One of the most easily recognized discontinuities across a from is

Answer 7

A change in temperature

Question 8

How would high density altitude affect the performance of a small unmanned aircraft?

Answer 8

Decreased performance

Question 9

What causes variations in altimeter settings between weather reporting points?

Answer 9

Unequal heating of the Earth’s surface

Question 10

What are the current conditions for Chicago midway airport (KMDW)?

Answer 10

Sky 700 feet overcast, visibility 1-1/2 SM, rain.

OVC007- sky 700ft overcast

Question 11

ASOS

Answer 11

Automated Surface Observing System

Question 12

AWOS

Answer 12

Automated Weather Observing System

Question 13

What weather provides the best flying conditions?

Answer 13

Cool, dry air

Question 14

The zone between different temperature, humidity, and wind is called

Answer 14

A front

Question 15

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

Answer 15

Precipitation beginning to fall

Question 16

What are the standard temperature and pressure values for sea level?

Answer 16

15°C and 29.92 Hg

Question 17

One in flight condition necessary for structural icing to form is

Answer 17

Visible moisture

Question 18

Over which area should a remote pilot expect to find the highest amount of thermal currents under normal conditions?

Answer 18

Dry areas

Question 19

Low level temp inversion with high relative humidity

1. Smooth air, poor visibility, fog, haze, or low clouds
2. Light wind shear, poor visibility, haze, and light rain
3. Turbulent air, poor visibility, fog, low stratus type cloud, and showery precipitation

Answer 19

Smooth air, poor visibility, haze, and light rain

Question 20

What types of fog depend upon wind in order to exist?

1. Radiation and ice
2. Steam and ground
3. Advection and upslope

Answer 20

Advection and upslope

Question 21

In which en I is aircraft structural ice most likely to have the highest accumulation rate?
1. Cumulus clouds with below freezing temps
2. Freezing drizzle
3. Freezing rain

Answer 21

Freezing rain

Question 22

The presence of ice pellets at the surface is evidence that there
1. Are thunderstorms in the area
2. Has been a cold frontal passage
3. Is a temperature inversion with freezing rain at a higher altitude

Answer 22

Is a temperature inversion with freezing rain at a higher altitude

Question 23

Every physical process of weather is accompanied by or is the result of a
1. Movement of air
2. Pressure differential
3. Heat exchange

Answer 23

Heat exchange

Question 24

One in flight condition necessary for structural icing to form is:
1. Small temp/dew point spread
2. Stratiform clouds
3. Visible moisture

Answer 24

Visible moisture

Question 25

The basics weather min for operating an sUAS up to 400 ft AGL limit are:
1. 900ft ceiling 3 mile visibility
2. 2,000ft ceiling and 1 mile visibility
3. Clear of clouds and 2 miles visibility

Answer 25

900ft ceiling 3 mile visibility