Principles of Flight (Aeroplane) - SPL - Sailplane Pilot License

Question 1

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 2

Differential aileron deflection is used to...

Accepted Answer

Keep the adverse yaw low

Answer

Reduce wake turbulence

Answer

Avoid a stall at low angles of attack

Answer

Increase the rate of descent

Question 3

What effect is referred to as "adverse yaw"?

Accepted Answer

Aileron operation results in a yaw to the opposite side due to more drag at the down-deflected aileron

Answer

Aileron operation results in a yaw to the desired side due to less drag at the down-deflected aileron

Answer

Rudder operation results in a rolling moment to the opposite side due to more lift generated by the faster moving wing

Answer

Aileron operation results in a yaw to the opposite side due to more drag at the up-deflected aileron

Question 4

Flying with speeds higher than the never-exceed-speed (vNE) may result in...

Accepted Answer

Flutter and mechanically damaging the wings

Answer

Reduced drag with increased control forces

Answer

An increased lift-to-drag ratio and a better glide angle

Answer

Too high total pressure resulting in an unusable airspeed indicator

Question 5

The right aileron deflects upwards, the left downwards. How does the aircraft react?

Accepted Answer

Rolling to the right, yawing to the left

Answer

Rolling to the left, no yawing

Answer

Rolling to the left, yawing to the right

Answer

Rolling to the right, yawing to the right

Question 6

The angle of attack is the angle between...

Accepted Answer

The chord line and the oncoming airflow

Answer

The chord line and the longitudinal axis of an aeroplane

Answer

The wing and the fuselage of an aeroplane

Answer

The undisturbed airflow and the longitudinal axis of an aeroplane

Question 7

What leads to a decreased stall speed Vs (IAS)?

Accepted Answer

Decreasing weight

Answer

Lower density

Answer

Lower altitude

Answer

Higher load factor

Question 8

What has to be considered with regard to the centre of gravity position?

Accepted Answer

Only correct loading can assure a correct and safe centre of gravity position

Answer

By moving the elevator trim tab, the centre of gravity can be shifted into a correct position

Answer

The centre of gravity's position can only be determined during flight

Answer

By moving the aileron trim tab, the centre of gravity can be shifted into a correct position

Question 9

Pressure drag, interference drag and friction drag belong to the group of the...

Accepted Answer

Parasite drag

Answer

Main resistance

Answer

Induced drag

Answer

Total drag

Question 10

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

Exam questions Principles of Flight (Aeroplane) - SPL - Sailplane Pilot License

SPL - Sailplane Pilot License: Principles of Flight (Aeroplane) 10 Questions no time limit

Exam questions Principles of Flight (Aeroplane) - SPL - Sailplane Pilot License

SPL - Sailplane Pilot License: Principles of Flight (Aeroplane) 10 Questions no time limit

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