Air,Atomsphere And Airspeed

Question 1

When will air density decrease

Answer 1

• Air Pressure Reduces
• Temperature Increase
• Humidity Increases

Question 2

Where is static pressure felt

Answer 2

As air is a fluid, static pressure is felt in all directions

Question 3

What happens to static pressure as altitude increases?

Answer 3

It reduces

Question 4

What temperature is absolute zero?

Answer 4

-273°c

Question 5

How do water vapour and dry air relate?

Answer 5

Water vapour is much less massive than dry air

Question 6

What happens to air density as humidity increases?

Answer 6

It reduces

Question 7

When can aircraft get airborne and stay airborne

Answer 7

An aircraft can only become airborne and stay airborne if it does work on the air to produce a force to oppose gravity

Question 8

What is the equation for Dynamic Pressure

Answer 8

Dynamic Pressure = 1/2pv2

P= air density in kg/m3
V= TAS of airflow

Question 9

If we double the TAS what happens to dynamic pressure.

Answer 9

The dynamic pressure increases by 4

Question 10

What is the Equation for obtaining speeds from dynamic pressure

Answer 10

EAS = TAS square root (p/p0)

P = Air density at the aircraft 
P0 = air density at mean sea level