Principles of Flight - ATPL - Airline Transport Pilot license

Test 10 domande Principles of Flight, tempo libero

1 - The lift coefficient (CL) of an aeroplane in steady horizontal flight is 0.42. An increase in angle of attack of 1 degree increases CL by 0.1. A vertical up gust instantly changes the angle of attack by 3 degrees. The load factor will be: 0.74 1.71 2.49 1.49

2 - Constant-speed propellers provide a better performance than fixed-pitch propellers because they: Produce a greater maximum thrust than a fixed-pitch propeller. Have a higher maximum efficiency than a fixed-pitch propeller. Have more blade surface area than a fixed-pitch propeller. Produce an almost maximum efficiency over a wider speed range.

3 - Induced drag at constant IAS is affected by: Aeroplane wing location Aeroplane weight Engine thrust Angle between wing chord and fuselage centre line

4 - Given the following aeroplane configurations:1. Clean wing2. Slats only extended3. Flaps only extendedPlace these configurations in order of stall angle of attack: 3, 1, 2 2, 3, 1 2, 1, 3 1, 3, 2

5 - An example of differential aileron deflection during initiation of left turn is: Left aileron: 2° u 34. An example of differential aileron deflection during initiation of left turn is: Left aileron: 2° u 34. An example of differential aileron deflection during initiation of left turn is: Left aileron: 2° u 34. An example of differential aileron deflection during initiation of left turn is: Left aileron: 2° up

6 - High Aspect Ratio, as compared with low Aspect Ratio, has the effect of: Increasing lift and critical angle of attack Increasing lift and drag Decreasing induced drag and critical angle of attack Increasing induced drag and decreasing critical angle of attack

7 - Consider the steady flow through a stream tube where the velocity of the stream is V. An increase in temperature of the flow at a constant value of V will: Increase the mass flow Not affect the mass flow Decrease the mass flow Increase the mass flow when the tube is divergent in the direction of the flow

8 - Which statement with respect to the speed of sound is correct ? Varies with the square root of the absolute temperature. Doubles if the temperature increases from 9° to 36° Centigrade. Is independent of altitude. Increases always if the density of the air decreases.

9 - An aeroplane, being manually flown in the speed unstable region, experiences a disturbance that causes a speed reduction.If the altitude is maintained and thrust remains constant, the aeroplane speed will: Further decrease. Initially further decrease and thereafter increase. Initially increase and thereafter decrease. Increase.

10 - How is adverse yaw compensated for during entry into and roll out from a turn ? Differential aileron deflection Servo tabs Anti-balanced rudder control Horn-balanced controls

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