Meteorology

Question 1

Height of troposphere

Answer 1

28 000’ above poles to 54 000’ above equator

Question 2

Height of statosphere + unique quality

Answer 2

50 000’ above troposphere, ozone layer

Question 3

Height of mesosphere + unique qualitys (2)

Answer 3

Stratosphere to 275 000’ + -100 C, meteors burn up

Question 4

Height of thermosphere + unique qualities (2)

Answer 4

Mesosphere to 500 km + aurora, satellites, ionosphere

Question 5

Types of fog (6)

Answer 5

Radiation
Advection
Upslope
Steam
Precipitation
Icing

Question 6

What is subsidence?

Answer 6

Sinking air that warms as is descends into a low pressure area

Question 7

Cloud heights?

Answer 7

High: 16 500 - 45 000’
Middle: 6 500 - 23 000’
Low: Surface to 6 500’

Question 8

Macroburst

Answer 8

> 2NM diameter
Up to 20min

Question 9

Microburst

Answer 9

<2NM diameter
<5 min

Question 10

What constitutes a gust in a METAR?

Answer 10

Wind speed: exceed 2 min average by 5kts
Peak gust speed: 15kts minimum

Question 11

FM?
BECMG?
TEMPO?
PROB?

Answer 11

FM: permanent and rapid change (full new forecast)
BECMG: gradual change (for certain elements)
TEMPO: fluctuation (for certain elements)
PROB: 30-40% chance of a change creating a hazard

Question 12

Convective layer - spatial coverage qualifiers?

Answer 12

ISOLD: <25%
SCT: 25-50%
NMRS: >50%

Question 13

Non convective - spatial coverage?

Answer 13

LCL: <25%
PTCHY: 25-50%
XTNSV: >50%

Question 14

FZLVL line interval?

Answer 14

2500’

Question 15

FD = 9900?

Answer 15

Light and Variable

Question 16

FD = 7430

Answer 16

Direction: 74 - 50 = 240T
Speed: 30 + 100 = 130kts

Question 17

TAF issued ______ times a day, and valid for how many hours?

Answer 17

4x per day, 24 hrs

Question 18

Weather associated with a cold front (3)

Answer 18

Veering winds, showery precipitation, moderate turbulence

Question 19

If flying through a warm front, how should a pilot alter their course?

Answer 19

Winds VEER therefore alter to the RIGHT

Question 20

Cold air masses stable?

Answer 20

Inherently yes, but characterized by instability caused by heating from below

Question 21

Warm air masses stable?

Answer 21

Yes

Question 22

What is a gust?

Answer 22

A rapid and irregular fluctuation of varying intensity in the upward and downward movement of air currents, lasting for less than a minute

Question 23

In the Northern Hemisphere, the Coriolis force affects the flow of wind from high pressure to low pressure in what way?

Answer 23

Wind will be deflected to the right

Question 24

What is the primary cause of turbulence at high levels?

Answer 24

Wind shear

Question 25

What is not a factor that affects precipitation intensity?

Answer 25

Freezing level