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| Question | Answer |
|---|---|
| The amount of excess load that can be imposed on the wing of an airplane depends on the: | Speed of the airplane. |
| Bank angles exceeding ___ degrees are prohibited by Doss procedures. | 60 |
| What is one purpose of wing flaps? | To enable the pilot to make steeper approaches to a landing without increasing the airspeed. |
| During an approach to a stall, an increased load factor will cause the airplane to: | stall at a higher airspeed |
| What is the definition of Va? | The design maneuvering speed. |
| As altitude increases, the indicated airspeed at which an airplane stalls in the same configuation will: | remain the same |
| What will causes the nose of an aircraft to move in the direction of the turn before the bank starts in a turn entry? | Rudder being applied too soon. |
| How will frost on the wings of an airplane affect takeoff performance? | Frost will disrupt the smooth flow of air over the wing, adversely affecting its lifting capability. |
| Which V-speed represents maneuvering speed? | Va |
| The fough forces acting on an airplane in flight are: | Lift, weight, thrust and drag |
| An aircraft wing is designed to produce lift resulting from: | higher air pressure below the wing's surface than above the wing's surface |
| How does the wake turbulence vortex circulate around each wingtip? | Outward, upward, and around each tip. |
| With the flaps in the cruise position, what is the positive load factor limit for the DA20? | +4.4 |
| The tendency of an aircraft to develop forces which restore it to its original condition, when disturbed from a condition of steady flight, is known as: | stability |
| What is ground effect? | The result of the interference of the surface of the Earch with the airflow patterns about an airplane. |
| The greatest vortex strength occurs when the generating aircraft is: | heavy, clean, and slow |
| The angle of attack at which an airplane wing stalls will: | remain the same regardless of weight |
| Floating caused by ground effect will be most realized during an approach to land when at: | less than the length of the wingspan above the surface. |
| What force makes an airplane turn? | The horizontal component of lift. |
| With the flaps in the CRUISE position, what is the negative load factor limit for the DA20? | -2.2 |
| What causes an airplane to pitch nosedown when power is reduced and controls are not adjusted? | The downwash on the elevators from the propeller slipstream is reduced and elevator effectiveness is reduced. |
| The term "angle of attack" is defined as the angle: | between the wing chord line and the relative wind. |
| Wingtip vortices created by aircraft tend to: | sink below the aircraft generating turbulence. |
| An airplane said to be inherently stable will: | require less effort to control. |
| Which action will result in an airplane exceeding its critical angle of attack? | Demanding more Gs than the wing can provide at a given airspeed. |
| In what flight condition must an airplane be placed in order to spin? | Stalled |
| L/D Max, the speed which results in the maximum lift-to-drag ratio, is also: | the best glide airspeed. |
| What best describes "roll"? | Control of the airplane about the longitudinal axis by use of the ailerons to attain a desired bank angle |
| When are the four fources that act on an aircraft in equilibrium? | During unaccelerated flight. |
| Which would likely result in a slipping turn? | Increasing the rate of turn without using rudder. |
| Ground effect is most likely to result in which problem? | Becoming airborne before reaching recommended takeoff speed. |
| Loading an airplane to the most aft CG will cause the airplane to be: | less stable at all speeds. |
| The airplane is trimmed for straight-and-level unaccelerated flight. The control stick is momentarily pushed forward and then released. If the airplane shows an initial tendency to return to teh trimmed angle of attack, what type of stability? | positive static longitudinal stability |
| The airplane is trimmed for straight-and-level unaccelerated flight. The control stick is momentarily pushed forward then released. The airplane enters a series of self-damping pitch oscillations and eventually returns to straight and level flight. | Positive static and dynamic stability |
| What determines the longitudinal stability of an airplane? | The location of the CG with respect to the center of lift. |
| During a spin to the left, which wing is stalled? | Both wings are stalled during a spin. |
| What is the purpose of the rudder on an airplane? | To control yaw. |
| The wind condition that requires maximum caution when avoiding wake turbulence on landing is a: | light, quartering tailwind |
| During the entry to a right turn, the nose of the aircraft swings slightly to the left before it swings along the horizon to the right. This is a: | slipping entry, caused by adverse yaw; more right rudder pressure should have been applied for the amount of aileron pressure being used. |
| What describes "yaw"? | Control of the airplane about the vertical axis by using the rudder to move the nose right and left relative to the airplane's flight path. |
| What describes "pitch"? | Control of the airplane about the lateral axis by using the elevator to raise and lower the nose in relation to the natural horizon. |
| When does the P-factor cause the airplane to yaw to the left? | When at high angles of attack. |
| What must a pilot be aware of as a result of ground effect? | Induced drag decreases; therefore, any excess speed at the point of flare may cause considerable floating. |
| Which statement about adverse yaw is most correct? | Adverse yaw can be seen during aileron deflection, when more lift on the rising wing results in more induced drag on that wing which pulls the nose toward the rising wing. |
| If severe turbulence is encountered, the aircraft's airspeed should be reduced below: | Maneuvering speed. |
| What important airspeed limitation is not color coded on the airspeed indicator? | Maneuvering speed. |
| A pitch attitude exceeding ___ degrees from level flight is prohibited by Doss procedures. | 30 |
| How does frost affect the lifting surfaces of an airplane on takeoff? | Frost may prevent the airplane from becoming airborne at normal takeoff speed. |
| The airplane will stall at higher indicated airspeed when excessive maneuvering loads are imposed by steep turns, pull-ups, or other abrupt changes in its flightpath; this is called: | Accelerated stall. |
| Lift produced by an airfoil is the net force developed perpendicular to the: | relative wind. |
| Why is frost considered hazardous to flight? | Frost spoils the smooth flow of air over the wings, thereby decreasing lifting capability. |
| The angle between the chord line of the airfoil and the relative wind is known as the angle of: | attack |
| Which basic flight maneuver increases the load factor on an airplane as compared to straight-and-level flight? | Turns |
| A propeller rotating clockwise creates a spiralling slipstream that tends to rotate the airplane to the: | left around the vertical axis |
| What is the definition of Vne? | Never exceed speed. |
| In what flight condition is torque effect the greatest in a single-engine airplane? | Low airspeed, high power, high angle of attack. |
| An airplane has been loaded in such a manner that the CG is located aft of the CG limit. One undesirable flight characteristic a pilot might experience with this airplance would be: | difficulty in recovering from a stalled condition. |
| What is the relationship of lift, drag, thrust and weight when the airplane is in straight and level, unaccelerated flight? | Lift equald weight and thrust equals drag. |
| The left turning tendancy of an airplane caused by the P-factor is the result of the: | propeller blade descending on the right, producing more thrust that the ascending blade on the left. |
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