Principles of Flight (Helicopter) - PPL(H) - Private Pilot License

Question 1

What is the result of the vortex ring state?

Accepted Answer

The sink rate increases uncontrollably

Answer

The helicopter is more stable

Answer

The helicopter loses power

Answer

The rotor RPM increases

Question 2

What causes the phase lag between the displacement and the flapping of a rotor blade?

Accepted Answer

Inertia, mass, and aerodynamic forces

Answer

Rounding of the rotor blade tips

Answer

Friction in the rotor blade spindles

Answer

Advance or retreat angle of 90°

Question 3

Which statement about translational lift is correct?

Accepted Answer

It improves rotor efficiency as the helicopter moves into cleaner horizontal airflow.

Answer

It occurs only when stationary in a hover.

Answer

It reduces all lift instantly.

Answer

It is a radio navigation term.

Question 4

Vx is the speed...

Accepted Answer

For the best angle of climb

Answer

For the best rate of climb

Answer

To rotate

Answer

Never to be exceeded

Question 5

Which action best supports safe management of autorotative region?

Accepted Answer

Manage airspeed and collective to keep rotor RPM within limits.

Answer

Delay the decision until after take-off.

Answer

Use the item only if requested by passengers.

Answer

Ignore it when the helicopter has sufficient fuel.

Question 6

Which statement about retreating blade stall is correct?

Accepted Answer

It is associated with high forward speed, high gross mass, turbulence or high density altitude.

Answer

It occurs only while parked.

Answer

It affects only the advancing blade first.

Answer

It is prevented by exceeding VNE.

Question 7

What aerodynamic effect is most relevant? A skid contacts an obstacle during lift-off.

Accepted Answer

dynamic rollover risk may increase.

Answer

The altimeter setting becomes invalid.

Answer

The magnetic compass becomes the primary lift source.

Answer

The aircraft mass automatically decreases.

Question 8

What is the purpose of the vertical stabilizer?

Accepted Answer

Improvement of directional stability

Answer

Adjustment of longitudinal stability

Answer

Compensation of tail rotor stability

Answer

Reduction of manoeuvre stability

Question 9

If the critical angle of attack is exceeded, the...

Accepted Answer

Boundary layer on the upper side of the rotor blade begins to separate

Answer

Transition point starts moving towards the airflow direction

Answer

Boundary layer on the lower side of the rotor blade begins to separate

Answer

Laminar boundary layer turns into a turbulent boundary layer

Question 10

Why is flapping hinge function important for a PPL(H) flight?

Accepted Answer

It allows blade motion that helps balance lift in forward flight.

Answer

It is relevant only to airline transport operations.

Answer

It can be ignored when the flight remains local.

Answer

It is replaced by passenger preference.

Exam questions Principles of Flight (Helicopter) - PPL(H) - Private Pilot License

PPL(H) - Private Pilot License: Principles of Flight (Helicopter) 10 Questions no time limit

Exam questions Principles of Flight (Helicopter) - PPL(H) - Private Pilot License

PPL(H) - Private Pilot License: Principles of Flight (Helicopter) 10 Questions no time limit

You have reached the free limit

Upgrading to PRO gives you access to: