Private Pilot Glider Written Exam Complete Questions & Answers!!

The term "angle of attack" is defined as the angle - ANSWER Between the wing chord line and the relative wind. The angle between the chord line of an airfoil and the relative wind is known as the angle of. - ANSWER Attack Which statement relates to Bernoulli's principle? - ANSWER Air traveling faster over the curved upper surface of an airfoil causes lower pressure on the top surface The four forces acting on an airplane in flight are - ANSWER Lift, weight, thrust and drag When are the four forces that act on an airplane in equilibrium? - ANSWER During unaccelerated flight An airplane said to be inherently stable will - ANSWER Require less effort to control What determines the longitudinal stability of an airplane? - ANSWER The location of the CG with respect to the center of lift What causes an airplane (except a T-tail) to pitch nosedown when power is reduced and controls are not adjusted? - ANSWER The downwash on the elevators from the propeller slipstream is reduced and elevator effectiveness is reduced An airplane has been loaded in such a manner that the CG is located aft of the aft CG limit. One undesirable flight characteristic a pilot might experience with this airplane would be - ANSWER Difficulty in recovering from a stalled condition. Loading an airplane to the most aft CG will cause the airplane to be - ANSWER Less stable at all speeds Changes in the center of pressure of a wing affect the aircraft's - ANSWER Aerodynamic balance and controllability What force makes an airplane turn? - ANSWER The horizontal component of lift During an approach to a stall, an increased load factor will cause the airplane to - ANSWER Stall at a higher airspeed