JX103

Question 1

What are the four classifications of turbulence?

Answer 1

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

Question 2

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

Answer 2

Fast-moving cold front

Question 3

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

Answer 3

Clear icing

Question 4

What type front produces the most significant icing conditions?

Answer 4

Occluded front

Question 5

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

Answer 5

Reduced airflow and FOD

Question 6

What conditions are necessary for the formation of aircraft icing?

Answer 6

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

Question 7

What is the definition of TRACE (icing)?

Answer 7

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

Question 8

Define slant range visibility.

Answer 8

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

Question 9

What is the minimum sky coverage constituting a ceiling?

Answer 9

5/8 (Broken) or a total obscuration

Question 10

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

Answer 10

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

Question 11

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

Answer 11

Execute 180° turn

Question 12

What are the four levels of turbulence intensity?

Answer 12

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

Question 13

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

Answer 13

Severe turbulence

Question 14

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

Answer 14

Occasional

Question 15

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

Answer 15

300

Question 16

What are the three types of wind shear turbulence?

Answer 16

Jet stream, gusty winds, temperature inversion

Question 17

What are the two types of engine icing?

Answer 17

Compressor and induction icing

Question 18

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

Answer 18

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

Question 19

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

Answer 19

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

Question 20

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

Answer 20

Light

Question 21

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

Answer 21

Prevailing visibility

Question 22

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

Answer 22

Vertical visibility (VV)

Question 23

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

Answer 23

Advection

Question 24

What are the two types of fog?

Answer 24

Radiation

Advection

Question 25

What are the conditions required for formation of fog

Answer 25

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

Question 26

What happens when warm moist air moves over cool surface.

Answer 26

Advection fog

Question 27

How can you recognize and avoid icing condition?

Answer 27

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

Question 28

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

Answer 28

Fluid Mechanical Heat

Question 29

What are the three PIREP icing types?

Answer 29

clear, rime and mixed

Question 30

What are the icing intensities?

Answer 30

TRACE LIGHT MODERATE SEVERE

Question 31

How is the Prevailing Visibility defined?

Answer 31

Greatest horizontal visibility: Equaled or exceeded throughout over half horizon circle. Measured in statute miles. Need not be continuous.

Question 32

Name the sky covers and how many eights of the sky covered they represent.

Answer 32

``` CLR - 0/8 FEW - 1-2/8 SCT - 3-4/8 BKN - 5-7/8 OVC - 8/8 ```