Quiz 2 points by back

Question 1

absolute altitude

Answer 1

height above ground level

Question 2

indicated altitude

Answer 2

altitude shown on the altimeter

Question 3

true altitude

Answer 3

height above mean sea level

Question 4

pressure altitude

Answer 4

height above mean sea level

Question 5

density altitude

Answer 5

pressure altitude corrected for temperature

Question 6

high to low and you don’t fix altimeter

Answer 6

look out below

Question 7

low to high and you don’t fix your altimeter

Answer 7

look out above

Question 8

Temperature and density deviations if its colder than the ISA model

Answer 8

true altitude is lower than indicated altitude

Question 9

Temperature and density deviations if its hotter than the ISA model

Answer 9

true altitude is higher than the indicated altitude

Question 10

When is Density altitude a bigger issue for an airport and why

Answer 10

when the airport is a higher elevation because the less dense air = issues

Question 11

what does higher density air help with in certain aircraft

Answer 11

higher density air provides more thrust than lower density air because higher density air enhances engine combustion

Question 12

What is a jet stream

Answer 12

a narrow band of strong winds that encircles the Earth primarily in the mid-latitudes
flow in wave like pattern from west to each in both hemispheres

Question 13

is there only 1 jet stream or multiple

Answer 13

there are multiple jet steams that may exist between he equator and the pole, each at different lattidues and at different altitudes (subtropical, polar, arctic)

Question 14

what are the different patterns of a jet stream

Answer 14

zonal flow - flat flow
meridial flow - wavy flow

Question 15

how do you calculate the pressure gradient

Answer 15

change of pressure/ distance

Question 16

in a pressure gradient how is pressure gradient force applied

Answer 16

from higher to lower pressure - perpendicular to line of constant pressure (isobars)

Question 17

what do isobars closer together show for a pressure gradient

Answer 17

stronger pressure gradient

Question 18

what has the greatest effect on wind

Answer 18

lpressure gradient

Question 19

where is the Coriolis force greatest and weakest

Answer 19

greatest at the poles and weakest at the equator

Question 20

is Coriolis force a fundamental factor in wind

Answer 20

yes

Question 21

how is the coriolis force felt on earth

Answer 21

on the rotating earth, this force appears to deflect moving air horizontally in a direction perpendicular to airs motion

Question 22

is the rate of change in surface pressure is higher in cold or warm air

Answer 22

cold air (molecules are faster and want to go to the low pressure)

Question 23

pressure gradient aloft are caused by

Answer 23

temperature gradients