aeroplanlære delmålsprøve 20 spørgsmål

Question 1

The construction feature of a wing called ‘‘wash out’’ is….

Answer 1

A decrease in the angle of incidence from root to tip.

Question 2

The sensor of a Stall warning system can be activated by a change in the location of the…..

Answer 2

Stagnation point

Question 3

Given a constant load factor and level flight, wich of these statements about the variation of induced drag with changes of speed and mass are correct:

1) When speed decreases, induced drag increases
2) When mass decreases, induced drag decreases

Answer 3

1) is correct
2) is correct

Question 4

An aero plane with a mass of 4000kg is performing a level turn at a constant TAS of 160 its at a bank of angle of 45^. The lift is approximately…..

Answer 4

56.000N

4000 * 9,82 = 39280
39280 * 1/cos(45)

Question 5

Compared with level flight, the angle of attack must be increased in a steady horizontal turn…

Answer 5

To compensate for the reduction in the vertical component of lift

Question 6

The elevator deflection required for a given maneuver will be…

Answer 6

Larger for a low IAS when compared to high IAS

Question 7

The SI unit of measurement for DENSITY is…

Answer 7

Kg/m^3

Question 8

While a pilot is flying the stall horn goes off but is not noticed, what happens in a full stall?

Answer 8

Nose drops even through elevator is fully upwards

Question 9

Wing tip vortices have the greatest intensity during…

Answer 9

TAKE-OFF

Question 10

The lift coefficient C(L) versus angle of attack curve of a positive cambered aerofoil section intersects the vertical axis of the graph…

Answer 10

Above the origin

Question 11

On an aircraft with differential aileron control system, when the control stick is moved to the right….

Answer 11

The left aileron moves down, and the right aileron moves up through a greater angle

Question 12

The angle of attack of an aerofoil profile is defined as the angle between…

Answer 12

Chord line and the relative airflow

Question 13

Regarding a positive cambered aerofoil section, wich statements are correct or incorrect?

1) The angle of attack has a positive value when the lift coefficient equals zero.
2) A nose down pitching moment exists when the lift coefficient equals zero.

Answer 13

1 is false
2 is correct

Question 14

When wing lift is zero, its induced drag is…

Answer 14

Zero

Question 15

The main function of trailing edge flap is to….

Answer 15

Increase the maximum lift coefficient of the wing

Question 16

The total pressure is…

Answer 16

Is the static pressure plus the dynamic pressure

Question 17

An aeroplan has a stalling speed of 100kts in a steady level flight. When the aeroplan is flying a level turn with a loadfactor 1.5, the stalling speed is…

Answer 17

122kts

in turn = old speed x square root of load factor

100 × √(1.5) = 122.47

Question 18

That point where the airflow leaves the surface of an aerofoil is known as

Answer 18

The seperation point