Exam quiz Principle of Flight - EASA PPL(A) - Private Pilot License

Question 1

Best glide speed is near...

Accepted Answer

the speed for maximum lift-to-drag ratio

Answer

VNE

Answer

zero airspeed

Answer

maximum flap extension speed only

Question 2

The change in pitch at a propeller blade from the root to the tip ensures...

Accepted Answer

A nearly constant load by a constant effective angle of attack over the entire length of the blade

Answer

That the most thrust is produced at the blade tip

Answer

That the most thrust is produced at the blade root

Answer

The largest possible angle of attack at the blade tip

Question 3

What should a private pilot remember about spiral dive?

Accepted Answer

It is a steep descending turn with increasing airspeed and unstalled wings

Answer

It occurs only in turbine aircraft

Answer

Airspeed remains constant

Answer

It always improves stability

Question 4

For safe PPL(A) operation, how should best glide speed be understood?

Accepted Answer

It gives the best still-air glide range when flown at the published mass or corrected as required

Answer

It replaces trim

Answer

It cancels drag

Answer

It gives minimum sink in every aircraft

Question 5

Recovery from a stall normally requires...

Accepted Answer

reducing angle of attack

Answer

increasing back pressure

Answer

closing the throttle only

Answer

turning on pitot heat only

Question 6

Which statement gives the best operational interpretation of load factor?

Accepted Answer

It is the ratio of lift to weight and increases in manoeuvres such as level turns

Answer

It is runway slope

Answer

It removes the need for aircraft control

Answer

It always improves stability

Question 7

What kind of drag is NOT part of the parasite drag?

Accepted Answer

Induced drag

Answer

Interference drag

Answer

Skin-friction drag

Answer

Form drag

Question 8

Which principle of flight statement is correct? A forward centre of gravity generally...

Accepted Answer

increases longitudinal stability but may require more elevator authority

Answer

It applies only on the ground

Answer

It is unrelated to angle of attack

Answer

It replaces trim

Question 9

Which principle of flight statement is correct? Longitudinal stability is stability around the...

Accepted Answer

lateral axis

Answer

vertical axis

Answer

It applies only on the ground

Answer

It is a runway lighting signal

Question 10

What pattern can be found at the stagnation point?

Accepted Answer

Streamlines are divided into airflow above and below the profile

Answer

The boundary layer starts separating on the upper surface of the profile

Answer

The laminar boundary layer changes into a turbulent boundary layer

Answer

All aerodynamic forces can be considered as attacking at this single point

Question 11

During cross-country planning, which statement is correct for ground effect?

Accepted Answer

It reduces induced drag close to the ground and can affect landing and take-off behaviour

Answer

It increases induced drag greatly

Answer

It is a radio navigation effect

Answer

It applies only on the ground

Question 12

Stall speed in level flight is 45 kt. What is the approximate stall speed in a level 45° banked turn?

Accepted Answer

54 kt

Answer

45 kt

Answer

64 kt

Answer

44 kt

Question 13

How do lift and drag change when setting flaps to a lower position?

Accepted Answer

Lift increases, drag increases

Answer

Lift increases, drag decreases

Answer

Lift decreases, drag decreases

Answer

Lift decreases, drag increases

Question 14

Which principle of flight statement is correct? Manoeuvring speed is important because below it...

Accepted Answer

the aircraft should stall before exceeding the limit load under abrupt full control input

Answer

It always improves stability

Answer

It replaces trim

Answer

It occurs only in turbine aircraft

Question 15

Which principle of flight statement is correct? Ailerons control...

Accepted Answer

roll

Answer

It is determined only by QNH

Answer

yaw

Answer

It is a radio navigation effect

Question 16

For a VFR private pilot, what should be remembered about angle of attack?

Accepted Answer

Increasing angle of attack increases lift only up to the critical angle

Answer

It is used only after landing

Answer

It is set by QNH

Answer

It changes aircraft registration

Question 17

How does a laminar boundary layer differ from a turbulent boundary layer?

Accepted Answer

The turbulent boundary layer can follow the airfoil camber at higher angles of attack

Answer

The laminar boundary layer produces lift, the turbulent boundary layer produces drag

Answer

The turbulent boundary layer is thicker and provides less skin-friction drag

Answer

The laminar boundary layer is thinner and provides more skin-friction drag

Question 18

Which statement about load factor is correct for a PPL(A) pilot?

Accepted Answer

It is the ratio of lift to weight and increases in manoeuvres such as level turns

Answer

It is fuel flow

Answer

It is runway slope

Answer

It is always less than one in turns

Question 19

The centre of pressure is the theoretical point of origin of...

Accepted Answer

All aerodynamic forces of the profile

Answer

Only the resulting total drag

Answer

Gravity forces of the profile

Answer

Gravity and aerodynamic forces

Question 20

Which principle of flight statement is correct? Ground effect reduces...

Accepted Answer

induced drag near the surface

Answer

It is a runway lighting signal

Answer

It is used only after landing

Answer

It removes the need for aircraft control

Question 21

During cruise flight with constant power setting, an aircraft shows a permanent tendency to raise the nose. How can this tendency be eliminated?

Accepted Answer

By deflecting the elevator trim tab upwards

Answer

By shifting the centre of gravity backwards

Answer

By elevator deflection upwards

Answer

By deflecting the elevator trim tab downwards

Question 22

For safe PPL(A) operation, how should centre of gravity and stability be understood?

Accepted Answer

CG position affects longitudinal stability and control forces

Answer

It always improves stability

Answer

It replaces trim

Answer

It occurs only in turbine aircraft

Question 23

Which statement gives the best operational interpretation of parasite drag?

Accepted Answer

It generally increases as airspeed increases

Answer

It always improves stability

Answer

It is measured in litres

Answer

It prevents every stall

Question 24

How is the balance of forces affected during a turn?

Accepted Answer

Lift force must be increased to compensate for the sum of centrifugal and gravitational force

Answer

The net force results from superposition of gravity and centripetal forces

Answer

The horizontal component of the lift force during a turn is the centrifugal force

Answer

A lower lift force compensates for a lower net force as compared to level flight

Question 25

Which statement gives the best operational interpretation of flaps?

Accepted Answer

They increase lift and drag and change pitching moments

Answer

It is determined only by QNH

Answer

They are used only to increase cruise speed

Answer

It always improves stability

Question 26

In which way does the position of the centre of pressure move at a positively shaped profile with increasing angle of attack?

Accepted Answer

It moves forward until reaching the critical angle of attack

Answer

It moves backward until reaching the critical angle of attack

Answer

It moves forward first, then backward

Answer

It moves to the wing tips

Question 27

For a VFR private pilot, what should be remembered about trim?

Accepted Answer

Trim reduces sustained control forces but does not replace active aircraft control

Answer

Trim is an autopilot

Answer

It removes the need for aircraft control

Answer

It is unrelated to angle of attack

Question 28

What should a private pilot remember about angle of attack?

Accepted Answer

Increasing angle of attack increases lift only up to the critical angle

Answer

It cancels drag

Answer

Angle of attack is the same as pitch attitude

Answer

It applies only on the ground

Question 29

Load factor in a level turn increases because...

Accepted Answer

lift must increase to maintain altitude

Answer

weight decreases

Answer

gravity changes

Answer

thrust becomes zero

Question 30

What is the correct operational meaning of spin?

Accepted Answer

It involves stalled autorotation and requires prompt correct recovery action

Answer

It changes aircraft registration

Answer

It is unrelated to angle of attack

Answer

It prevents every stall

Question 31

Point number 5 in the figure indicates which flight state? See figure (PFA-008)

Accepted Answer

Slow flight

Answer

Best gliding angle

Answer

Stall

Answer

Inverted flight

Question 32

In normal private flying, which statement about coordinated flight is correct?

Accepted Answer

Balanced rudder and aileron use helps avoid sideslip and reduces stall/spin risk

Answer

It occurs only in turbine aircraft

Answer

It is used only after landing

Answer

It is a radio navigation effect

Question 33

Which statement about lift and angle of attack is correct?

Accepted Answer

Increasing the angle of attack too far may result in a loss of lift and an airflow separation

Answer

Too large angles of attack can lead to an exponential increase in lift

Answer

Increasing the angle of attack results in less lift being generated by the aerofoil

Answer

Decreasing the angle of attack results in more drag being generated by the aerofoil

Question 34

What is correct about stall speed in a turn?

Accepted Answer

It increases as load factor increases

Answer

It becomes zero in coordinated flight

Answer

It applies only on the ground

Answer

It replaces trim

Question 35

Which practical rule applies to centre of gravity and stability?

Accepted Answer

CG position affects longitudinal stability and control forces

Answer

It changes aircraft registration

Answer

It prevents every stall

Answer

It is used only after landing

Question 36

For safe PPL(A) operation, how should coordinated flight be understood?

Accepted Answer

Balanced rudder and aileron use helps avoid sideslip and reduces stall/spin risk

Answer

It cancels drag

Answer

Coordination matters only on the ground

Answer

It applies only on the ground

Question 37

Which principle of flight statement is correct? Drag is the component of aerodynamic force...

Accepted Answer

parallel and opposite to the relative airflow

Answer

always equal to thrust

Answer

It always improves stability

Answer

It is a runway lighting signal

Question 38

Which statement gives the best operational interpretation of angle of attack?

Accepted Answer

Increasing angle of attack increases lift only up to the critical angle

Answer

It is a radio navigation effect

Answer

It changes aircraft registration

Answer

It always improves stability

Question 39

Which of the listed wing shapes has the lowest induced drag?

Accepted Answer

Elliptical shape

Answer

Double trapezoidal shape

Answer

Rectangular shape

Answer

Trapezoidal shape

Question 40

Point number 1 in the figure indicates which flight state? See figure (PFA-008)

Accepted Answer

Inverted flight

Answer

Stall

Answer

Best gliding angle

Answer

Slow flight

Question 41

Wing tip vortex development begins during which phase of flight?

Accepted Answer

When lift is being generated during rotation

Answer

As soon as the aircraft starts moving

Answer

While setting take-off power during take-off run

Answer

While setting flaps to lower position

Question 42

How should the pilot react to an engaged stall warning?

Accepted Answer

Push the elevator, increase power

Answer

Pull the elevator, increase power

Answer

Pull the elevator, decrease power

Answer

Raise the nose to decrease airspeed

Question 43

With regard to flaps, which of the following options provides a lift-increasing effect?

Accepted Answer

Increasing the aerofoil camber

Answer

Decreasing the angle of attack

Answer

Decreasing the form drag

Answer

Lowering the induced drag

Question 44

Which statement about ground effect is correct for a PPL(A) pilot?

Accepted Answer

It reduces induced drag close to the ground and can affect landing and take-off behaviour

Answer

It increases induced drag greatly

Answer

It is a navigation radio error

Answer

It occurs only above cloud

Question 45

Which principle of flight statement is correct? A stall occurs when...

Accepted Answer

the critical angle of attack is exceeded

Answer

It removes the need for aircraft control

Answer

It applies only on the ground

Answer

It is unrelated to angle of attack

Question 46

In motorplanes the stall warning is usually activated by a change of...

Accepted Answer

The stagnation point.

Answer

The centre of gravity.

Answer

The transition point.

Answer

The centre of pressure.

Question 47

If surrounded by airflow (v > 0), any arbitrarily shaped body produces...

Accepted Answer

Drag.

Answer

Lift without drag.

Answer

Drag and lift.

Answer

Constant drag at any speed.

Question 48

A stall occurs when...

Accepted Answer

the critical angle of attack is exceeded

Answer

airspeed reaches exactly zero

Answer

the engine stops

Answer

the flaps are retracted

Question 49

Which option correctly describes ground effect?

Accepted Answer

It reduces induced drag close to the ground and can affect landing and take-off behaviour

Answer

It is used only after landing

Answer

It is a navigation radio error

Answer

It is a radio navigation effect

Question 50

The elevator controls...

Accepted Answer

pitch

Answer

yaw

Answer

roll

Answer

mixture

Question 51

A balanced turn requires...

Accepted Answer

coordinated use of aileron and rudder

Answer

rudder only

Answer

elevator only

Answer

no control input

Question 52

When briefing a VFR flight, what is the correct operational meaning of spin?

Accepted Answer

It involves stalled autorotation and requires prompt correct recovery action

Answer

It always improves stability

Answer

It is a runway lighting signal

Answer

It is used only after landing

Question 53

For safe PPL(A) operation, how should parasite drag be understood?

Accepted Answer

It generally increases as airspeed increases

Answer

It applies only on the ground

Answer

It is a runway lighting signal

Answer

It decreases with the square of speed

Question 54

Which statement about best angle and best rate climb is correct for a PPL(A) pilot?

Accepted Answer

Best angle gives maximum height gain per distance and best rate gives maximum height gain per time

Answer

They are the same in all conditions

Answer

Best rate gives shortest ground distance

Answer

Best angle gives maximum speed only

Question 55

Stall speed in level flight is 45 kt. What is the approximate stall speed in a level 60° banked turn?

Accepted Answer

64 kt

Answer

45 kt

Answer

74 kt

Answer

54 kt

Question 56

Which practical rule applies to best glide speed?

Accepted Answer

It gives the best still-air glide range when flown at the published mass or corrected as required

Answer

It is unrelated to angle of attack

Answer

It replaces trim

Answer

It is a runway lighting signal

Question 57

For a VFR private pilot, what should be remembered about ground effect?

Accepted Answer

It reduces induced drag close to the ground and can affect landing and take-off behaviour

Answer

It is a navigation radio error

Answer

It changes aircraft registration

Answer

It is measured in litres

Question 58

The pressure compensation between wing upper and lower surfaces results in ...

Accepted Answer

Induced drag by wing tip vortices.

Answer

Laminar airflow by wing tip vortices.

Answer

Profile drag by wing tip vortices.

Answer

Lift by wing tip vortices.

Question 59

Which principle of flight statement is correct? Lateral stability is stability around the...

Accepted Answer

longitudinal axis

Answer

vertical axis

Answer

It is a radio navigation effect

Answer

It changes aircraft registration

Question 60

During a straight and steady climb, which force acts additionally, and in the same direction as the drag force, resulting in more power required for climb than for horizontal flight?

Accepted Answer

A component of the weight force along the rearward flight path.

Answer

The vertical component of the weight force.

Answer

A component of the thrust along the rearward flightpath.

Answer

A component of the lift force along the forward flightpath.

Question 61

What is the correct operational meaning of best angle and best rate climb?

Accepted Answer

Best angle gives maximum height gain per distance and best rate gives maximum height gain per time

Answer

It prevents every stall

Answer

It affects only passengers

Answer

It is a radio navigation effect

Question 62

In which mentioned situation is the total drag at its minimum?

Accepted Answer

Parasite drag is equal to induced drag

Answer

Induced drag is twice as much as parasite drag

Answer

Parasite drag is twice as much as induced drag

Answer

Induced drag is smaller than parasite drag

Question 63

The drag coefficient...

Accepted Answer

Cannot be lower than a non-negative, minimal value.

Answer

Increases with increasing airspeed.

Answer

Is proportional to the lift coefficient.

Answer

May range from zero to an infinite positive value.

Question 64

In order to improve the stall characteristics of an aircraft, the wing is twisted outwards (the angle of incidence varies spanwise). This is known as...

Accepted Answer

Geometric washout

Answer

Aerodynamic washout

Answer

Arrow shape

Answer

V-form

Exam simulation Principle of Flight - EASA PPL(A) - Private Pilot License

Exam simulation EASA PPL(A) Exam Question Bank Principle of Flight 120 questions on 120 minutes

Exam simulation Principle of Flight - EASA PPL(A) - Private Pilot License

Exam simulation EASA PPL(A) Exam Question Bank Principle of Flight 120 questions on 120 minutes

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