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

Question 1

Which statement about parasite drag is correct for a PPL(A) pilot?

Accepted Answer

It generally increases as airspeed increases

Answer

It decreases with the square of speed

Answer

It exists only during taxi

Answer

It is the same as lift

Question 2

Which practical rule applies to spin?

Accepted Answer

It involves stalled autorotation and requires prompt correct recovery action

Answer

It is measured in litres

Answer

It prevents every stall

Answer

It occurs only in turbine aircraft

Question 3

The rudder controls...

Accepted Answer

yaw

Answer

pitch

Answer

roll

Answer

airspeed indication

Question 4

What is the approximate load factor in a level 60° banked turn?

Accepted Answer

2

Answer

1.00

Answer

3.80

Answer

0.50

Question 5

The aerodynamic rudder balance...

Accepted Answer

Reduces the control stick forces.

Answer

Improves the rudder effectiveness.

Answer

Reduces the control surfaces.

Answer

Delays the stall.

Question 6

Which statement gives the best operational interpretation of stall speed in a turn?

Accepted Answer

It increases as load factor increases

Answer

It is measured in litres

Answer

It is determined only by QNH

Answer

It is a radio navigation effect

Question 7

Which principle of flight statement is correct? A spin requires...

Accepted Answer

a stall and yaw

Answer

It is unrelated to angle of attack

Answer

It is a runway lighting signal

Answer

It affects only passengers

Question 8

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 9

The laminar boundary layer on the aerofoil is located between...

Accepted Answer

The stagnation point and the transition point.

Answer

The transition point and the separation point.

Answer

The transition point and the centre of pressure.

Answer

The stagnation point and the centre of pressure.

Question 10

A forward centre of gravity generally...

Accepted Answer

increases longitudinal stability but may require more elevator authority

Answer

reduces stability in all cases

Answer

has no control effect

Answer

reduces take-off distance always

Question 11

What is the correct operational meaning of parasite drag?

Accepted Answer

It generally increases as airspeed increases

Answer

It exists only during taxi

Answer

It always improves stability

Answer

It occurs only in turbine aircraft

Question 12

During a descent at idle power with constant speed, the propeller lever is moved backwards. How do the propeller pitch and sink rate change?

Accepted Answer

Propeller pitch is increased, sink rate is decreased

Answer

Propeller pitch is increased, sink rate is increased

Answer

Propeller pitch is decreased, sink rate is increased

Answer

Propeller pitch is decreased, sink rate is decreased

Question 13

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

Accepted Answer

It involves stalled autorotation and requires prompt correct recovery action

Answer

It is unrelated to angle of attack

Answer

It cancels drag

Answer

It is recovered by increasing angle of attack

Question 14

Which practical rule applies to flaps?

Accepted Answer

They increase lift and drag and change pitching moments

Answer

It is a runway lighting signal

Answer

It cancels drag

Answer

It affects only passengers

Question 15

Which of the following options is likely to produce large induced drag?

Accepted Answer

Small aspect ratio

Answer

Large aspect ratio

Answer

Tapered wings

Answer

Low lift coefficients

Question 16

What is correct about flaps?

Accepted Answer

They increase lift and drag and change pitching moments

Answer

It is measured in litres

Answer

It occurs only in turbine aircraft

Answer

It is used only after landing

Question 17

In normal private flying, which statement about spin is correct?

Accepted Answer

It involves stalled autorotation and requires prompt correct recovery action

Answer

It replaces trim

Answer

It occurs only in turbine aircraft

Answer

It affects only passengers

Question 18

For pre-flight preparation, which option correctly describes centre of gravity and stability?

Accepted Answer

CG position affects longitudinal stability and control forces

Answer

It is a radio navigation effect

Answer

It always improves stability

Answer

It prevents every stall

Question 19

Which design feature can compensate for adverse yaw?

Accepted Answer

Differential aileron deflection

Answer

Wing dihedral

Answer

Full deflection of the aileron

Answer

Aileron trim

Question 20

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 21

What effects typically result from propeller icing?

Accepted Answer

Reduced power output, decreasing RPM.

Answer

Increased power output, decreasing RPM.

Answer

Increased power output, increasing RPM.

Answer

Reduced power output, increasing RPM.

Question 22

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 23

Which principle of flight statement is correct? Total drag is the sum of...

Accepted Answer

induced drag and parasite drag

Answer

It replaces trim

Answer

It occurs only in turbine aircraft

Answer

It affects only passengers

Question 24

Which kinds of drag contribute to total drag?

Accepted Answer

Induced drag and parasite drag

Answer

Form drag, skin-friction drag, interference drag

Answer

Interference drag and parasite drag

Answer

Induced drag, form drag, skin-friction drag

Question 25

Which point on the aerofoil is represented by number 1? See figure (PFA-009)

Accepted Answer

Stagnation point

Answer

Transition point

Answer

Centre of pressure

Answer

Separation point

Question 26

During a local VFR flight, which option correctly describes induced drag?

Accepted Answer

It is associated with lift and is greater at low speed and high lift coefficient

Answer

It is a runway lighting signal

Answer

It affects only passengers

Answer

It disappears near the stall

Question 27

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 28

Longitudinal stability is stability around the...

Accepted Answer

lateral axis

Answer

vertical axis

Answer

longitudinal axis

Answer

static port

Question 29

The trim tab at the elevator is deflected upwards. In which position is the corresponding indicator?

Accepted Answer

Nose-down position

Answer

Neutral position

Answer

Nose-up position

Answer

Laterally trimmed

Question 30

In normal private flying, which statement about stall is correct?

Accepted Answer

A stall occurs when the critical angle of attack is exceeded

Answer

It is measured in litres

Answer

It is a runway lighting signal

Answer

It is determined only by QNH

Question 31

For safe PPL(A) operation, how should stall speed in a turn be understood?

Accepted Answer

It increases as load factor increases

Answer

It is unrelated to angle of attack

Answer

It occurs only in turbine aircraft

Answer

It decreases in every turn

Question 32

Flaps normally...

Accepted Answer

increase lift and drag

Answer

reduce both lift and drag

Answer

remove the stall

Answer

control yaw only

Question 33

Which statement about coordinated flight is correct for a PPL(A) pilot?

Accepted Answer

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

Answer

The slip ball should be ignored

Answer

Coordination matters only on the ground

Answer

Uncoordinated flight always improves safety

Question 34

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

Accepted Answer

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

Answer

It is determined only by QNH

Answer

It is runway slope

Answer

It changes aircraft registration

Question 35

Ailerons control...

Accepted Answer

roll

Answer

yaw

Answer

pitch

Answer

altitude directly

Question 36

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 37

For a VFR private pilot, what should be remembered about 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 cancels drag

Answer

It is used only after landing

Answer

Best angle gives maximum speed only

Question 38

Which option correctly describes 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 changes aircraft registration

Answer

It is measured in litres

Answer

It occurs only in turbine aircraft

Question 39

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 40

What is the approximate load factor in a level 20° banked turn?

Accepted Answer

1.1

Answer

It occurs only in turbine aircraft

Answer

It is used only after landing

Answer

It is a radio navigation effect

Question 41

Drag is the component of aerodynamic force...

Accepted Answer

parallel and opposite to the relative airflow

Answer

perpendicular to the relative airflow

Answer

always vertical

Answer

always equal to thrust

Question 42

Which effect does a decreasing airspeed have on the induced drag during a horizontal and stable cruise flight?

Accepted Answer

The induced drag will increase

Answer

The induced drag will collapse

Answer

The induced drag will remain constant

Answer

The induced drag will slightly decrease

Question 43

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 44

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

Question 45

When increasing the airflow speed by a factor of 2 while keeping all other parameters constant, how does the parasite drag change approximately?

Accepted Answer

It increases by a factor of 4

Answer

It decreases by a factor of 2

Answer

It increases by a factor of 2

Answer

It decreases by a factor of 4

Question 46

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

Accepted Answer

They increase lift and drag and change pitching moments

Answer

It prevents every stall

Answer

It is used only after landing

Answer

It changes aircraft registration

Question 47

Which practical rule applies to stall?

Accepted Answer

A stall occurs when the critical angle of attack is exceeded

Answer

It is unrelated to angle of attack

Answer

It replaces trim

Answer

It is a runway lighting signal

Question 48

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 49

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

Accepted Answer

vertical axis

Answer

wing chord

Answer

It changes aircraft registration

Answer

It is unrelated to angle of attack

Question 50

Which principle of flight statement is correct? In a level 60° banked turn, load factor is approximately...

Accepted Answer

2

Answer

It applies only on the ground

Answer

It replaces trim

Answer

It cancels drag

Question 51

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

Accepted Answer

It is associated with lift and is greater at low speed and high lift coefficient

Answer

It affects only passengers

Answer

It is caused only by radio antennas

Answer

It removes the need for aircraft control

Question 52

The ratio of span and mean chord length is referred to as...

Accepted Answer

Aspect ratio.

Answer

Trapezium shape.

Answer

Tapering.

Answer

Wing sweep.

Question 53

In day-to-day private flying, what is correct about spiral dive?

Accepted Answer

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

Answer

It cancels drag

Answer

It affects only passengers

Answer

It is always a stall

Question 54

Which statement gives the best operational interpretation of induced drag?

Accepted Answer

It is associated with lift and is greater at low speed and high lift coefficient

Answer

It is used only after landing

Answer

It is a radio navigation effect

Answer

It always improves stability

Question 55

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 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 centre of gravity and stability?

Accepted Answer

CG position affects longitudinal stability and control forces

Answer

It removes the need for aircraft control

Answer

It is measured in litres

Answer

It cancels drag

Question 58

Induced drag is greatest when...

Accepted Answer

speed is low and lift coefficient is high

Answer

speed is high and lift coefficient is low

Answer

the aircraft is parked

Answer

the engine is stopped

Question 59

Which statement concerning the angle of attack is correct?

Accepted Answer

A too large angle of attack may result in a loss of lift

Answer

The angle of attack cannot be negative

Answer

Increasing the angle of attack results in decreasing lift

Answer

The angle of attack is constant throughout the flight

Question 60

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

Accepted Answer

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

Answer

Trim is an autopilot

Answer

Trim changes wing area

Answer

Trim prevents all stalls

Question 61

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

Accepted Answer

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

Answer

It is determined only by QNH

Answer

It is always a stall

Answer

It is a radio navigation effect

Question 62

Which statement about angle of attack is correct for a PPL(A) pilot?

Accepted Answer

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

Answer

Lift increases forever

Answer

Angle of attack is the same as pitch attitude

Answer

It is set by QNH

Question 63

Which principle of flight statement is correct? Induced drag is greatest when...

Accepted Answer

speed is low and lift coefficient is high

Answer

It is unrelated to angle of attack

Answer

It cancels drag

Answer

the engine is stopped

Question 64

In normal private flying, which statement about load factor is correct?

Accepted Answer

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

Answer

It is used only after landing

Answer

It changes aircraft registration

Answer

It prevents every stall

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