ATPL - PRINCIPLES OF FLIGHT Question and answer 2023

ATPL - PRINCIPLES OF FLIGHT Question and answer 20231. Which statement is true regarding the opposing forces acting on an aeroplane in steady-state level flight? a. Thrust is greater than drag and weight and lift are equal b. These forces are equal c. Thrust is greater than drag and lift is greater than weight d. Thrust is slightly greater than lift, but the drag and weight are equal b. These forces are equal 2. The stalling speed of an aeroplane is most affected by: a. Changes in air density b. Variations in aeroplane loading c. Variations in flight altitude d. Changes in pitch attitude b. Variations in aeroplane loading 3. To ensure some degree of longitudinal stability in flight, the position of the CG: a. Must always coincide with the AC b. Must be forward of the Neutral Point c. Must be aft of the Neutral Point d. Must not be forward of the aft CG limit b. Must be forward of the Neutral Point 4. The purpose of a trim tab is: a. To assist the pilot in initiating movement of the controls b. To zero the load on the pilot controls in the flight attitude required c. To provide feel to the controls at high speed d. To increase the effectiveness of the controls b. To zero the load on the pilot controls in the flight attitude required 5. What criteria determine which engine is the "critical" engine of a twin-engine aeroplane? a. The one with the center of thrust farthest from the centreline of the fuselage b. The one with the center of thrust closest to the centreline of the fuselage c. The one designated by the manufacturer which develops most usable thrust d. The failure of which causes the least yawing moment b. The one with the center of thrust closest to the centreline of the fuselage 6. The angle of attack of a fixed pitch propeller: a. Depends on forward speed only b. Depends on forward speed and engine rotational speed c. Depends on engine rotational speed only d. Is constant for a fixed pitch propeller b. Depends on forward speed and engine rotational speed 7. Which statement is true relative to changing angle of attack? a. A decrease in angle of attack will increase pressure below the wing and decrease drag b. An increase in angle of attack will decrease pressure below the wing and decrease drag c. An increase in angle of attack will increase drag d. An increase in angle of attack will decrease the lift coefficient c. An increase in angle of attack will increase drag 8. If the angle of attack is increased beyond the critical angle of attack, the wing will no longer produce sufficient lift to support the weight of the aircraft: a. Unless the airspeed is greater than the normal stall speed b. Regardless of airspeed or pitch attitude c. Unless the pitch attitude is on or below the natural horizon d. In which case, the control column should be pulled-back immediately b. Regardless of airspeed or pitch attitude 9. A stall warning device must be set to operate: a. At the stalling speed b. At a speed just below the stalling speed c. At a speed about 5% to 10% above the stalling speed d. At a speed about 20% above the stalling speed c. At a speed about 5% to 10% above the stalling speed 10. Lowering the flaps during a landing approach: a. Increases the angle of descent without increasing the airspeed b. Decreases the angle of descent without increasing power c. Eliminates floating d. Permits approaches at a higher indicated airspeed a. Increases the angle of descent without increasing the airspeed 11. A constant rate of climb in an aeroplane is determined by: a. Wind speed b. The aircraft weight c. Excess engine power d. Excess airspeed c. Excess engine power 12. What effect does aspect ratio have on induced drag? a. Increased aspect ratio increases induced drag b. Increased aspect ratio reduces induced drag c. Changing aspect ratio has no effect on induced drag d. Induced drag will equal 1:3 x aspect ratio/chord ratio b. Increased aspect ratio reduces induced drag 13. What phenomenon causes induced drag? a. Wing tip vortices b. Wing tanks c. The increased pressure at the leading edge d. The spanwise flow, inward below the wing and outward above a. Wing tip vortices 14. If the stalling speed in a 15 degree bank turn is 60kt, what would the stall speed be in a 45 degree bank? a. 83kt b. 70kt c. 85kt d. 60kt b. 70kt 15. In recovery from a spin: a. Ailerons should be kept neutral b. Airspeed increases c. Ailerons used to stop the spin d. Rudder and ailerons used against the direction of spin direction a. Ailerons should be kept neutral 16. To recover from a spin, the elevators should be: a. Moved up to increase the angle of attack b. Moved down to reduce the angle of attack c. Set to neutral d. Allowed to float b. Moved down to reduce the angle of attack 17. Which stall has the greatest angle of attack? a. Low speed stall b. High speed stall (shock stall) c. Deep stall d. Accelerated stall c. Deep stall 18. What is the effect of deploying leading edge flaps? a. Increased minimum glide angle b. Decreased minimum glide angle c. Increased glide range d. Decreased sink rate d. Decreased sink rate