Weather

Question 1

What are “isobars”?

Answer 1

Lines on a weather chart that connects areas of equal or Constance barometric pressure

Question 2

What does dewpoint mean?

Answer 2

Air must be cooled to attain the state of saturation

Question 3

When temperature and dewpoint are close together what type of weather is likely?

Answer 3

Visible moisture in the form of clouds, Dew, or fog (ideal conditions for carburetor icing)

Question 4

If your route of flight takes you towards the low pressure system, in general what kind of weather can you expect? What if you were flying toward a high-pressure system?

Answer 4

Low pressure system is an area of rising air, which is conducive to cloudiness, precipitation and bad weather.
High-pressure system is an area for descending air, which tends to favor dissipation of cloudiness and good weather.

Question 5

Define Cold Front

Answer 5

Mass of cold, dense and stable air advances and replaces a body of warmer air

Question 6

Define Occluded Front

Answer 6

Fast-moving cold front catches up with a slow moving warm front

Question 7

Define Warm Front

Answer 7

Warm air mass contacts and flows over a colder air mass

Question 8

Define Stationary Front

Answer 8

When the forces of two air masses are relatively equal

Question 9

General characteristics a pilot will encounter near a cold front?

Answer 9

Towering cumulus or cumulonimbus, heavy rain accompanied by lightning, thunder storm or hail, possible tornado, poor visibility, winds variable and gusting, temperature/dewpoint and barometric pressure drop rapidly

Question 10

General characteristics a pilot will encounter near a warm front?

Answer 10

Stratiform cloud, drizzle, low ceilings and poor visibility, variable winds, rise in temperature