Clouds

Question 1

Clouds

Answer 1

-visible mass of liquid droplet or ice crystals suspended in the atmosphere

Question 2

Requirements for formation of clouds

Answer 2

• Water Vapor
• Lifting Action
  
  • Convection
  • Orographic Lifting
  • Turbulence- Instability
• Condensation Nuclei
  
  • Dust, Pollen, Dirt, Salt

Question 3

Cloud formation

Answer 3

1. Moist Air is lifted
2. Air is cooled – dewpoint reached
3. Air is saturated
4. Water Vapor condenses into water droplets

Question 4

Types of Clouds by appeareance

Answer 4

Stratus
Cumulus
Cirrus

Question 5

Nimbus

Answer 5

Latin name for a rain shower

When used as a prefix or suffix it describes a rain-producing type of cloud.

Question 6

Four families of clouds

Answer 6

low level clouds
middle level clouds
high level clouds
clouds with vertical development

Question 7

Clouds classification by species

Answer 7

FRACTUS
CAPILLATUS
CASTELLANUS
CONGESTUS
MAMATUS
CALVUS
LENTICULLARIS
ROTOR

Question 8

Cloud cover

Answer 8

Sky clear (SKC) - 0 oktas
Few (FEW) - 1-2 oktas
Scattered (SCT) - 3-4 oktas
Broken (BKN) - 5-7 oktas
Overcast (OVC) - 8 oktas

Question 9

minimum cloud ceiling for VFR

Answer 9

1500 ft AGL: MINIMUM CLOUD CEILING for take-off and landing under VFR operations.

Question 9

Cloud ceiling

Answer 9

-height of the lowest layer of BROKEN and OVERCAST clouds

Question 10

Stability

Answer 10

how the atmosphere will react when there is vertical motion of air

Question 11

Stable air

Answer 11

resists vertical movement

Question 12

Unstable air

Answer 12

Prone to Vertical movements

Question 13

Stable air characteristics

Answer 13

• Stratus type cloud
• Steady Precipitation
• Steady winds
• Smooth flying conditions
• Poor low-level visibility

Question 14

Unstable air characteristic

Answer 14

• Cumulus Clouds
• Showery precipitation
• Gusty winds
• Turbulence from moderate to severe
• Good visibility