Principles of Flight - ATPL - Airline Transport Pilot license

Question 1

Which has the effect of increasing load factor? (all other relevant factors being constant)

Accepted Answer

Vertical gusts

Answer

Increased aeroplane mass

Answer

Rearward CG location

Answer

Increased air density

Question 2

What is the SI unit of measurement for power?

Accepted Answer

Nm/s

Answer

Pa/m2

Answer

Kgm/s2

Answer

N/m

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 loss of total pressure in a shock wave is due to the fact that

Accepted Answer

Kinetic energy in the flow is converted into heat energy.

Answer

The speed reduction is too high.

Answer

The friction in the boundary layer is higher.

Answer

The static pressure decrease is comparatively high.

Question 5

Which definition of propeller parameters is correct?

Accepted Answer

Geometric pitch is the theoretical distance a propeller blade element would travel in a forward direction during one revolution

Answer

Blade angle is the angle between the blade chord line and the propeller axis

Answer

Angle of attack is the angle between the blade chord line and the propeller vertical plane

Answer

Critical tip velocity is the propeller speed at which flow separation first occurs at some part of the blade

Question 6

The lift formula is:

Accepted Answer

L= CL 1/2 rho V^2 S

Answer

L= W

Answer

L= n W

Answer

L= CL 2 rho V^2 S

Question 7

At an aeroplane's minimum drag speed, what is the ratio between induced drag Di and parasite drag Dp? Di / Dp =

Accepted Answer

1/1

Answer

It varies between aeroplane types.

Answer

2/1

Answer

1/2

Question 8

Critical Mach number is the free stream Mach number at which:

Accepted Answer

Local supersonic flow first exists on any part of the aeroplane.

Answer

There is subsonic flow over all parts of the aeroplane.

Answer

The aeroplane has zero buffet margin.

Answer

There is supersonic flow over all parts of the aeroplane.

Question 9

How does stalling speed (IAS) vary with altitude?

Accepted Answer

It remains constant at lower altitudes but increases at higher altitudes due to compressibility effects

Answer

It remains constant at lower altitudes but decreases at higher altitudes due to compressibility effects

Answer

It increases with increasing altitude, because the density decreases

Answer

It remains constant

Question 10

When the air is passing through a shock wave the static temperature will

Accepted Answer

Increase.

Answer

Stay constant.

Answer

Decrease.

Answer

Decrease and beyond a certain Mach number start increasing again

Exam questions Principles of Flight - ATPL - Airline Transport Pilot license

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

Exam questions Principles of Flight - ATPL - Airline Transport Pilot license

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

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