review 2 Flashcards
1
Q
3 elements that determine air density
A
Pressure Temperature Moisture
2
Q
Air pressure is the result of the ______ of a column of air above _____
A
Weight, datum
3
Q
With increasing altitude, air pressure _____ which causes air density to ______
A
reduces, reduces
4
Q
The atmosphere is warmed from ____
A
below
5
Q
With increasing altitude, air temperature _____
this tends to _____ air density
A
decreases, increases
6
Q
The combined effect of pressure and temperature changes with increasing altitude causes air density to ____
A
decrease
7
Q
ISA sea level pressure _____
in millibars _____
moisture content ____
Helicopter performance should be _____
A
29.92
1013.2
pressure & temperature are better at determining density
average
