Principles of Flight - ATPL - Airline Transport Pilot license

Question 1

Load factor is:

Accepted Answer

Lift/Weight

Answer

Wing loading

Answer

1/Bank angle

Answer

Weight/Lift

Question 2

Which kind of boundary layer has the strongest change in velocity close to the surface?

Accepted Answer

Turbulent boundary layer

Answer

No difference

Answer

Laminar boundary layer

Answer

Transition boundary layer

Question 3

How does the total drag vary as speed is increased from stalling speed (VS) to maximum IAS (VNE) in a straight and level flight at constant weight?

Accepted Answer

Decreasing, then increasing

Answer

Increasing, then decreasing

Answer

Increasing

Answer

Decreasing

Question 4

The lift coefficient (CL) of an aeroplane in steady horizontal flight is 0.35. An increase in angle of attack of 1 degree would increase CL by 0.079. If a vertical gust instantly changes the angle of attack by 2 degrees, the load factor will be:

Accepted Answer

1.45

Answer

0.9

Answer

1.9

Answer

0.45

Question 5

Assuming an initial condition in straight and level flight with CL = 1. What will be the new value of CL after the value of the speed has doubled?

Accepted Answer

0.25

Answer

2.00

Answer

1.00

Answer

0.50

Question 6

Considering a positive cambered aerofoil, the pitching moment when CL = 0 is:

Accepted Answer

Negative (nose-down)

Answer

Equal to zero

Answer

Infinite

Answer

Positive (nose-up)

Question 7

Total pressure is: (rho = density)

Accepted Answer

Static pressure plus dynamic pressure.

Answer

Measured at a small hole in a surface, parallel to the local stream.

Answer

1/2 rho V2.

Answer

Static pressure minus dynamic pressure.

Question 8

During the extension of the flaps at a constant angle of attack the aeroplane starts to (all other factors of importance being constant)

Accepted Answer

Climb.

Answer

Bank.

Answer

Yaw.

Answer

Sink suddenly.

Question 9

The lift formula is:

Accepted Answer

L= CL 1/2 RHO V2 S

Answer

L= W

Answer

L= n W

Answer

L= CL 2 RHO V2 S

Question 10

Which statement about a primary control surface controlled by a servo tab, is correct?

Accepted Answer

The position is undetermined during taxiing, in particular with tailwind

Answer

Due to the effectiveness of the servo tab the control surface area can be smaller

Answer

The control effectiveness of the primary surface is increased by servo tab deflection

Answer

The servo tab can also be used as a balance tab

Quiz Principles of Flight - ATPL - Airline Transport Pilot license

Test 10 Questions ATPL - Airline Transport Pilot license - Principles of Flight, no time limit