M8

Question 1

What is acceleration due to gravity

Answer 1

9.8 m/s

Question 2

What unit donates force

Answer 2

Newtons N

Question 3

Where does static pressure act

Answer 3

Equally in all directions

Question 4

What is static pressure denoted by

Answer 4

A small p

Question 5

What is dynamic pressure denoted by

Answer 5

A small q

Question 6

What is static pressure for technical systems denoted by

Answer 6

Bar

Question 7

What must temperature be expressed in

Answer 7

Kelvin

Question 8

Why has an effect on the speed of sound

Answer 8

Temperature

Question 9

What happens to the speed around the aircraft in the transonic region

Answer 9

Some areas are above the speed of sound and others are below

Question 10

What distance is the troposphere from the earth?

Answer 10

8km at the poles and 16km at the equator

Question 11

Which layer of atmosphere is the lowest

Answer 11

Troposphere

Question 12

What is the standard altitude for the tropopause

Answer 12

11km

Question 13

Under standard conditions, temperature decreases with an altitude at a rate of 6.5 degrees per km

Question 14

What is the standard temp in the tropopause

Answer 14

56.5 degrees

Question 15

Which region is the air incompressible

Answer 15

Subsonic

Question 16

What does the continuity equation denote

Answer 16

The speed of the airflow is inversely proportional to the area of the cross section of the tube as long as the density remains constant

Question 17

Why term is used in an outlet when the diameter increases no the speed decreases

Answer 17

Diffuser outlet

Question 18

Why does the Bernoulli equation state

Answer 18

The total pressure is always the sum of static pressure and dynamic pressure

Question 19

What a a profile

Answer 19

A cross section of a wing

Question 20

What is the chord line

Answer 20

A straight line drawn half way between the leading edge and the trailing edge

Question 21

What is the mean camber line

Answer 21

Drawn half way between the upper service and lower surface

Question 22

What is the fineness ratio

Answer 22

Maximum thickness of a profile as a fraction

Question 23

What is angle of attack denoted by

Answer 23

Alpha

Question 24

What is the symbol for angle of incidence

Answer 24

Gamma

Question 25

What is the taper ratio

Answer 25

From the tip of the chord to the root chord

Question 26

What is the aspect ratio

Answer 26

Wing span divided by average chord

Question 27

Out of positive dihedral and negative dihedral which is up and which is down

Answer 27

Positive is up and negative is down

Question 28

What is induced drag caused by

Answer 28

Lift and spa wise flow Cured by using fairings

Question 29

What is the equation for the coefficient of lift

Answer 29

Measured lift divided by theoretical lift

Question 30

Where is the centre of pressure

Answer 30

The point where all the pressures and forces act

Question 31

What happens the more swept back the wings are

Answer 31

The more table the aircraft around the roll axis

Question 32

Lift is what to the relative wind

Answer 32

Perpendicular

Question 33

Drag is what to the relative wind

Answer 33

Parllel

Question 34

What is the equation for coefficient of lift

Answer 34

Measured lift over theoretical lift

Question 35

What is critical Mach no

Answer 35

The lowest Mach number part of it starts going supersonic

Question 36

What is a polar diagram

Answer 36

Polar curve show how lift and drag coefficients combine

Question 37

What are the 3 types of parasite drag

Answer 37

- Form - Friction - interference

Question 38

What type of compressible drag is there

Answer 38

Shock waves

Question 39

When does induced drag affect

Answer 39

Lift

Question 40

Where does a swept wing stall first

Answer 40

The tip

Question 41

What is washing out

Answer 41

Aerodynamically twisting the wing to prevent the tip stalling first and stalling the root, making safer flying conditions

Question 42

What is the centre of pressure

Answer 42

Also the centre of lift is the point where the total sum of a pressure field acts on a body

Question 43

What is mean aerodynamic chord

Answer 43

The average chord length of a tapered or swept wing