Progress Test

Question 1

What is Bernoulli’s equation?

Answer 1

PS=PT-q

Question 2

In a divergent low subsonic flow the speed of the airflow increase/decrease and the static pressure increase/decrease

Answer 2

Increase - decrease

Question 3

Compared to the turbulent boundary layer the laminar boundary layer is; Thinner,causes less skin friction drag and is more prone to blank.

Answer 3

Seperation

Question 4

Leaving ground effect the induced angle of attack: increases / decreases.

Answer 4

Increases

Question 5

With Frise Ailerons, drag is increased on the ________ going wing by the _______ going Aileron’s leading edge protruding into the airflow. (Up/down)

Answer 5

Down down

Question 6

With increasing sweepback the stall speed:

Answer 6

Increases

Question 7

A swept wing stalls first at the (root/tip) where the downwash is (greatest/smallest)

Answer 7

Tip - smallest

Question 8

What happens to the value of total drag at a given IAS as altitude increases?

Answer 8

No change

Question 9

What happens to parasite drag as speed doubles?

Answer 9

Quadruples

Question 10

An aircraft deploys plain flaps whilst flying at a constant altitude. What happens to cl?

Answer 10

Remains constant

Question 11

An aircraft climbs to a high altitude, what limit might be exceeded?

Answer 11

MMO?