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

Question 1

Which kinds of drag contribute to total drag?

Accepted Answer

Induced drag and parasite drag

Answer

Interference drag and parasite drag

Answer

Induced drag, form drag, skin-friction drag

Answer

Form drag, skin-friction drag, interference drag

Question 2

Bernoulli's equation for frictionless, incompressible gases states that...

Accepted Answer

Total pressure = dynamic pressure + static pressure

Answer

Total pressure = dynamic pressure - static pressure

Answer

Static pressure = total pressure + dynamic pressure

Answer

Dynamic pressure = total pressure + static pressure

Question 3

Stability around which axis is mainly influenced by the centre of gravity's longitudinal position?

Accepted Answer

Lateral axis

Answer

Longitudinal axis

Answer

Gravity axis

Answer

Vertical axis

Question 4

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 5

What is shown by a profile polar?

Accepted Answer

Ratio of cA and cD at different angles of attack

Answer

Ratio between minimum rate of descent and best glide

Answer

Ratio between total lift and drag depending on angle of attack

Answer

Lift coefficient cA at different angles of attack

Question 6

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

Accepted Answer

Slow flight

Answer

Best gliding angle

Answer

Inverted flight

Answer

Stall

Question 7

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

Accepted Answer

Elliptical shape

Answer

Rectangular shape

Answer

Trapezoidal shape

Answer

Double trapezoidal shape

Question 8

Deflecting the rudder to the left causes...

Accepted Answer

Yawing of the aircraft to the left

Answer

Pitching of the aircraft to the left

Answer

Pitching of the aircraft to the right

Answer

Yawing of the aircraft to the right

Question 9

Rotation around the lateral axis is called...

Accepted Answer

Pitching

Answer

Yawing

Answer

Rolling

Answer

Stalling

Question 10

The elevator moves an aeroplane around the...

Accepted Answer

Lateral axis

Answer

Vertical axis

Answer

Longitudinal axis

Answer

Elevator axis

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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