AIRCRAFT GENERAL KNOWLEDGE with correct answers 100%

AIRCRAFT GENERAL KNOWLEDGE with correct answers 100% What is one purpose of wing flaps? A. To decrease wing area to vary the lift. B. To enable the pilot to make steeper approaches to a landing without increasing the airspeed. C. To relieve the pilot of maintaining continuous pressure on the controls. - Correct Answer Answer (B) is correct. Extending the flaps increases the wing camber and the angle of attack of the wing. This increases wing lift and induced drag, which enables the pilot to make steeper approaches to a landing without an increase in airspeed. One of the main functions of flaps during approach and landing is to: A. decrease the angle of descent without increasing the airspeed. B. permit a touchdown at a higher indicated airspeed. C. increase the angle of descent without increasing the airspeed. - Correct Answer Answer (C) is correct. Extending the flaps increases the wing camber and the angle of attack of the wing. This increases wing lift and induced drag, which enables the pilot to increase the angle of descent without increasing the airspeed. What is the purpose of the rudder on an airplane? A.To control yaw. B. To control overbanking tendency. C. To control roll. - Correct Answer Answer (A) is correct. The rudder is used to control yaw, which is rotation about the airplane's vertical axis. The four forces acting on an airplane in flight are A. lift, weight, gravity, and thrust. B. lift, weight, thrust, and drag. C. lift, gravity, power, and friction. - Correct Answer Answer (B) is correct. Lift is produced by the wings and opposes weight, which is the result of gravity. Thrust is produced by the engine/propeller and opposes drag, which is the resistance of the air as the airplane moves through it. When are the four forces that act on an airplane in equilibrium? A. When the aircraft is accelerating. B. When the aircraft is at rest on the ground. C. During unaccelerated flight. - Correct Answer Answer (C) is correct. The four forces (lift, weight, thrust, and drag) that act on an airplane are in equilibrium during unaccelerated flight. What is the relationship of lift, drag, thrust, and weight when the airplane is in straight-and-level flight? A.Lift equals weight and thrust equals drag. B. Lift, drag, and weight equal thrust. C. Lift and weight equal thrust and drag. - Correct Answer Answer (A) is correct. When the airplane is in straight-and-level flight (assuming no change of airspeed), it is not accelerating, and therefore lift equals weight and thrust equals drag. The term "angle of attack" is defined as the angle A. formed by the longitudinal axis of the airplane and the chord line of the wing. B. between the wing chord line and the relative wind. C. between the airplane's climb angle and the horizon. - Correct Answer Answer (B) is correct. The angle of attack is the angle between the wing chord line and the direction of the relative wind. The wing chord line is a straight line from the leading edge to the trailing edge of the wing. The relative wind is the direction of airflow relative to the wing when the wing is moving through the air. Angle of attack is defined as the angle between the chord line of an airfoil and the A. rotor plane of rotation. B. direction of the relative wind. C. pitch angle of an airfoil. - Correct Answer Answer (B) is correct. The angle of attack is the angle between the wing chord line and the direction of the relative wind. The wing chord line is a straight line from the leading edge to the trailing edge of the wing. The relative wind is the direction of airflow relative to the wing when the wing is moving through the air. (Refer to figure 1.) The acute angle A is the angle of A. incidence. B. dihedral. C. attack. - Correct Answer Answer (C) is correct. The angle between the relative wind and the wing chord line is the angle of attack. The wing chord line is a straight line from the leading edge to the trailing edge of the wing. The angle of attack at which an airplane wing stalls will A. increase if the CG is moved forward. B. change with an increase in gross weight. C. remain the same regardless of gross weight. - Correct Answer Answer (C) is correct. A given airplane wing will always stall at the same angle of attack r