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Flashcards in JX103 Deck (32)
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1

What are the four classifications of turbulence?

a. Thermal
b. Mechanical
c. Frontal
d. Wind shear

2

What type of frontal activity is likely to produce the most turbulence?

Fast-moving cold front

3

What type of icing is found in cumuliform clouds and unstable conditions?

Clear icing

4

What type front produces the most significant icing conditions?

Occluded front

5

What are the greatest hazards associated with induction and compressor icing?

Reduced airflow and FOD

6

What conditions are necessary for the formation of aircraft icing?

Visible moisture and temperatures between 0° and -20° C

7

What is the definition of TRACE (icing)?

Ice becomes perceptible.
Rate of accumulation slightly greater than sublimation.
De-icing/anti-icing not used unless encountered for extended time.

8

Define slant range visibility.

The distance on final approach at which the runway environment is in sight

9

What is the minimum sky coverage constituting a ceiling?

5/8 (Broken) or a total obscuration

10

True or false? Advection fog is dissipated by solar heating.

False. The fog layer is usually too thick for solar heating to be effective.

11

If an aircraft encounters an ash cloud in flight, what is the best procedure for the pilot to use to escape the cloud?

Execute 180° turn

12

What are the four levels of turbulence intensity?

a. Light
b. Moderate
c. Severe
d. Extreme

13

What category of turbulence is characterized by large variations in airspeed and abrupt changes in attitude and altitude?

Severe turbulence

14

Turbulence occurring less than ⅓ of the time is described as ______.

Occasional

15

Moderate turbulence can extend as far as ______ miles downwind of a mountain wave.

300

16

What are the three types of wind shear turbulence?

Jet stream, gusty winds, temperature inversion

17

What are the two types of engine icing?

Compressor and induction icing

18

True or false? Induction icing requires visible moisture and sub-freezing temperatures.

False. Induction icing is a result of lower inlet pressures, and can occur in clear air and temperature as high as 10°.

19

True or false? When finding yourself in icing conditions, you can escape by flying into areas of colder temperatures.

True. At lower temperatures precipitation is already frozen and aircraft icing is not a hazard.

20

At what intensity of icing is rate of accumulation a problem if encountered for an extended period of time?

Light

21

Total visibility over half the horizon circle or greater is ______.

Prevailing visibility

22

______ is the distance that be seen directly upward from the ground into a surface-based obscuration

Vertical visibility (VV)

23

Which type of fog produces a thicker, more persistent layer?

Advection

24

What are the two types of fog?

Radiation
Advection

25

What are the conditions required for formation of fog

Condensation nuclei
High moisture content
Small temperature/dew point spread
Light surface winds (1/10 KT)

26

What happens when warm moist air moves over cool surface.

Advection fog

27

How can you recognize and avoid icing condition?

Signs of icing conditions:
Visible moisture
0° to -20° C
At low altitude or mountainous terrain
Avoidance:
Climb
Descend

28

What are the three types of anti-ice/de-ice equipment?

Fluid
Mechanical
Heat

29

What are the three PIREP icing types?

clear, rime and mixed

30

What are the icing intensities?

TRACE
LIGHT
MODERATE
SEVERE