1) The continuity equation states: If the area of a tube is increasing, the speed of the subsonic and incompressible flow inside is Report

sonic.

decreasing.

not changing.

2) VA is: Report

the maximum speed at which maximum elevator deflection up is allowed.

the maximum speed at which rolls are allowed.

the speed at which a heavy transport aeroplane should fly in turbulence.

3) Which statement about induced drag and tip vortices is correct? Report

The wing tip vortices and the induced drag decrease at increasing angle of attack.

The flow direction at the upper side of the wing has a component in wing root direction, the flow at the underside of the wing in wing tip direction.

Tip vortices can be diminished by vortex generators.

4) The bank angle in a rate-one turn depends on: Report

TAS.

weight.

load factor.

5) Which statement is correct about an aeroplane, that has experienced a left engine failure and continues afterwards in straight and level cruise flight with wings level ? Report

turn indicator left of neutral, slip indicator left of neutral.

turn indicator left of neutral, slip indicator neutral.

turn indicator neutral, slip indicator neutral.

6) Differential aileron deflection: Report

equals the drag of the right and left aileron.

is required to keep the total lift constant when ailerons are deflected.

increases the CLmax.

7) The turn indicator shows a right turn. The slip indicator is left of neutral. To coordinate the turn: Report

a higher turn rate is required.

more right bank is required.

more right rudder is required.

8) Lift is generated when: Report

a certain mass of air is accelerated downwards.

the shape of the aerofoil is slightly cambered.

an aerofoil is placed in a high velocity air stream.

9) The difference between IAS and TAS will: Report

decrease at increasing speed.

decrease at decreasing altitude.

increase at decreasing temperature.

10) Which of the following statements about a constant speed propeller is correct? Report

The propeller system keeps the aeroplane speed constant.

The RPM decreases with increasing aeroplane speed.

The blade angle increases with increasing speed.

11) Two identical aeroplanes A and B are flying horizontal steady turns. Further data are: A: W= 1500 kg Bank= 20° TAS= 130 kt B: W= 1500 kg Bank= 20° TAS= 200 kt Which of the following statements is correct? Report

The load factor A is larger than the load factor B.

The turn radius A is larger than the turn radius B.

The rate of turn A is larger than the rate of turn B.

12) Which of the following situations leads to a decreasing stall speed (IAS)? Report

increasing air density.

increasing load factor.

decreasing weight.

13) During flap down selection in a continuous straight and level flight at constant IAS and weight: Report

the stall speed increases.

the total boundary layer becomes laminar.

the centre of pressure moves aft.

14) A light twin is in a turn at 20 degrees bank and 150 kt TAS. A more heavy aeroplane at the same bank and the same speed will: Report

turn at a bigger turn radius.

turn at a smaller turn radius.

turn at the same turn radius.

15) Flaperons are controls which are used simultaneously as Report

flaps and elevator.

ailerons and flaps.

ailerons and elevator.

16) The lift of an aeroplane of weight W in a constant linear climb with a climb angle (gamma) is approximately: Report

Wcos.gamma.

W(1-sin.gamma).

W(1-tan.gamma).

17) The lift coefficient (CL) of an aeroplane in steady horizontal flight is 0.42, increase in angle of attack of 1 degree increases CL by is 0.1. A vertical up gust instantly changes the angle of attack by 3 degrees. The load factor will be : Report

1.71

0.74

1.49

18) The aeroplane drag in straight and level flight is lowest when the: Report

induced drag is lowest.

parasite drag is equal to the induced drag.

parasite drag equals twice the induced drag.

19) Considering a positive cambered aerofoil, the pitch moment when Cl=0 is: Report

equal to zero.

infinite

negative (pitch-down).

20) On a non swept wing, when the aerofoil is accelerated from subsonic to supersonic speeds, the aerodynamic centre : Report

remains unchanged.

slightly shifts forward.

shifts from 25% to about 50% of the aerofoil chord.

EASA Questions Principles Of Flight Supersonic Aerodynamics

Subsonic Aerodynamics

Transonic Aerodynamics

Supersonic Aerodynamics

Stability

Control