Atmosphere And Speed

Question 1

Air pressure is what

Answer 1

The weight of a column of air

Question 2

Air pressure is proportional to what

Answer 2

Density

Question 3

What is pressure alt

Answer 3

Height above standard

Question 4

3 things that easily change air density

Answer 4

Temperature, pressure and humidity

Question 5

IAS

Answer 5

Measure of dynamic pressure

Question 6

Dynamic pressure equation

Answer 6

0.5 rho V^2

Question 7

CAS airspeed

Answer 7

IAS correct for instrument and position error

Question 8

EAS airspeed

Answer 8

CAS corrected for compressibility error

Question 9

TAS

Answer 9

Actual airspeed of the aircraft through a mass of air

Question 10

What is the local speed of sound and its relationship with temp

Answer 10

The speed of sound for a certain temperature

Decreases with decreasing temp

Question 11

What is Mach number

Answer 11

It is TAS as a % relative to the LSS

Question 12

Why does TAS increase with altitude

Answer 12

Due to a reduction in density

Question 13

Why is Mach number a function of TAS

Answer 13

Due to alt and temperature change

Question 14

9 core competencies

Answer 14

-problem solving and decision making
-leadership and team work
-communication
-knowledge
-flight path manual
-flight path automation
-situational awareness
- work load management
-application of procedures

Question 15

What happens to TAS and IAS when climbing at a constant Mach

Answer 15

They decrease

Question 16

TAS and Mach when climbing at constant IAS

Answer 16

Both increase

Question 17

Mcrit

Answer 17

The speed at which any part of the airlfow over the aircraft reaches the speed of sound

Question 18

When do shockwaves form and their effect

Answer 18

When Mcrit is reached

Loss of lift, increase in drag, handling becomes harder

Question 19

Why have slats and flaps

Answer 19

Due to swept wings having poorer lift capabilities at lower speed, so HLD devices used to enhance this