Chapter 11 - Upper Winds

Isotachs (P.179)

• shows line joining places of equal pressure and temperature

• shows line joining places of equal temperature

• shows line joining places of equal pressure

• shows lines joining places of equal wind speed

Jet streams are caused by (P.180):

• surface temperature differences

• surface pressure differences

• air temperature differences

• surface humidity differences

How does a pilot recognize a jet stream (P.184)?

• differences in temperature on the ground

• wind blowing Cumulonimbus clouds at right angle

• wind blowing Cirrus clouds at right angle

• differences in pressure in the air

Flying from Tokyo (35^oN) to San Francisco (37^oN), the most likely jet stream a pilot may encounter in January is (P.180)

• subtropical jet stream

• polar front jet stream

• tropical easterly jet

• arctic jet stream

Which of the following statements regarding jet stream is correct (P.183)?

• the strongest clear air turbulence is likely to be found on the high pressure side

• Jet stream move with the sun

• the strongest clear air turbulence is likely to be found on the warm side

• Arctic jet stream are found between 10^o and 20^o North.