Ch 1 - Airplanes & Aerodynamics - Questions 1 - 48

Question 1

What is one purpose of wing flaps?

Answer 1

To enable the pilot to make steeper approaches to a landing without increasing the airspeed.

Question 2

One of the main functions of flaps during approach and landing is to

Answer 2

Increase the angle of descent without increasing the airspeed.

Question 3

What is the purpose of the rudder on an airplane?

Answer 3

To control yaw.

Question 4

Which is not a primary flight control surface?

Answer 4

Flaps.

Question 5

The elevator controls the movements around which axis?

Answer 5

Lateral.

Question 6

Which statement is true concerning primary flight controls?

Answer 6

The effectiveness of each control surface increase with speed because there is more airflow over them.

Question 7

Which of the following is true concerning flaps?

Answer 7

Flaps allow an increase in the angle of descent without increasing airspeed.

Question 8

Which device is a secondary flight control?

Answer 8

Spoilers.

Question 9

Trim systems are designed to do what?

Answer 9

They relieve the pilot of the need to maintain contact pressure on the flight controls.

Question 10

The 4 forces acting in on an airplane in flight are

Answer 10

Lift, weight, thrust, drag.

Question 11

When are the four forces that act on an airplane in equilibrium?

Answer 11

During unaccelerated, level flight.

Question 12

What is the relationship of lift, drag, thrust and weight when the airplane is in straight-and-level flight?

Answer 12

Lift equals weight and thrust equals drag.

Question 13

Which statement related to Bernoulli’s principle?

Answer 13

Air travelling faster over the curved upper surface of an airfoil causes lower pressure on the top surface.

Question 14

The term “angle of attack” is defined as the angle between the

Answer 14

chord line of the wing and the relative wind.

Question 15

The angle between the chord line of an airfoil and the relative wind is known as the angle of

Answer 15

Attack.

Question 16

The angle of attack at which an airplane wing stalls will

Answer 16

Remain the same regardless of the gross weight.

Question 17

As altitude increases, the indicated airspeed at which a given airplane stalls in a particular configuration will

Answer 17

Remain the same regardless of altitude.

Question 18

In what flight condition much an aircraft be placed in order to spin?

Answer 18

Stalled.

Question 19

During a spin to the left, which wing(s) is/are stalled?

Answer 19

Both wings are stalled.

Question 20

What is ground effect?

Answer 20

The result of the interference of the surface of the Earth with the airflow patterns about an airplane.

Question 21

Floating cause by the phenomenon of ground effect will be most caused during an approach to land when at

Answer 21

Less than the length of the wingspan above the surface.

Question 22

What must a pilot be aware if as a result of ground effect?

Answer 22

Induced drag decrease: therefore, any excess speed at the point of flare may cause considerable floating.

Question 23

An aircraft leaving ground effect during takeoff will

Answer 23

Experience an increase in induced drag and decrease in performance.

Question 24

Ground Effect is most likely to result in which problem?

Answer 24

Becoming airborne before reaching recommended takeoff speed.

Question 25

What component makes an airplane turn?

Answer 25

The horizontal component of lift.

Question 26

What determines the longitudinal stability of an airplane?

Answer 26

The location of the CG with respect to the centre of lift.

Question 27

An airplane said to be inherently stable will

Answer 27

Require less effort to control.

Question 28

Changes in the centre of pressure of a wing affect the aircrafts

Answer 28

Aerodynamic balance and controllability.

Question 29

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 29

Difficulty recovering from a stalled condition.

Question 30

What causes an airplane (except a T-tail) to pitch nosedown when power is reduced and controls are not adjusted?

Answer 30

The downwash on the elevators from the propeller slipstream is reduced and elevator effectiveness is reduced.

Question 31

What is the effect of advancing the throttle in flight?

Answer 31

Both aircraft groundspeed and angle of attack will increase.

Question 32

Loading an airplane to the most aft CG will cause the airplane to be

Answer 32

Less stable at all speeds.

Question 33

An airplane loaded with the Center of Gravity (CG) rear of the aft limit could

Answer 33

Increase the likelihood of inadvertent overstress.

Question 34

In what flight conditions are torque effects more pronounced in a single-engine airplane?

Answer 34

Low airspeed, high power, high angle of attack.

Question 35

The left turning tendency of an airplane cause by the P-factor is the result of the

Answer 35

Propeller blade descending on the right, producing more thrust than the ascending blade on the left.

Question 36

When does the P - factor cause the plane to yaw to the left?

Answer 36

When at HIGH angles of attack.

Question 37

Which basic flight maneuver increases the load fact on an airplane as compared to straight-and-level flight?

Answer 37

Turns.

Question 38

The amount of excess land that can be imposed on the wing of an airplane depends upon the

Answer 38

Speed of the airplane.

Question 39

During an approach to a stall, an increased land factor will cause the aircraft to

Answer 39

Stall at a higher airspeed.

Question 40

Structural damage or failure is more likely to occur in smooth air at speeds above

Answer 40

Vne.

Question 41

Limit land factor is the ratio of

Answer 41

Maximum sustainable load to the gross weight of the airplane.