Aerodynamic Forces

Question 1

Lift on a wing is most properly defined as the…

Answer 1

…force acting perpendicular to the relative wind.

Question 2

Bags weighing 90 lbs are placed in a normal category airplane’s baggage compartment which is placarded at 100 lbs. if the airplane is subjected to 3.5G positive load factor, the total load factor of the baggage is…

Answer 2

315 lbs and would not be excessive

Question 3

Why is it necessary to increase back elevator pressure to maintain altitude during a turn?
To compensate for the…

Answer 3

…loss of the vertical component of lift.

Question 4

Which airspeed would a pilot be unable to identify by the color coding of an airspeed indicator?

Answer 4

Maneuvering speed

Question 5

Why should speeds above Vne be avoided?

Answer 5

Design limit load factors may be exceeded if gusts are encountered

Question 6

A propeller rotating clockwise as seen from the rear creates a spiraling slipstream. The spiraling slipstream along with torque effect tends to rotate thenairplane to the…

Answer 6

Left around the vertical axis and left around the longitudinal axis

Question 7

If an aircraft with a gross weight of 2000 lbs was subjected to a 60 deg constant altitude bank, the total load factor would be …

Answer 7

4000 lbs

Question 8

In theory, if the airspeed of an airkane is doubled while in level flight, parasitic drag will become…

Answer 8

Four times greater

Question 9

Max structural crushing speed is the max speed the aircraft can operated during…

Answer 9

Normal operations

Question 10

The need to slow an airplane below Va is brought about by the following weather phenomenon…

Answer 10

Turbulence which causes an increase in stall speed

Question 11

The ratio between the total airload imposed on the wing and the gross weight of the airplane in flight is known as…

Answer 11

Load factor and directly affects stall speed

Question 12

A ilit is entering an area where significant clear air turbulence has been reported. Which action is appropriate upon reaching the first ripple

Answer 12

Adjust airspeed to that recommended for rough air

Question 13

Name the four fundamentals involved in maneuvering an aircraft

Answer 13

Straight and level flight, turns climbs and descents

Question 14

As airspeed decreases in level flight below that speed for maximum lift/drag ratio, total drag of an airplane….

Answer 14

Increases because of increased induced drag

Question 15

On a wing the force of lift acts perpendicular to, and the the force of drag acts parallel to the…

Answer 15

Flightpath

Question 16

What increase in load factor would taken place if the angle of bank were increased from 60 to 80

Answer 16

4Gs

Question 17

While maintaining a constant angle of bank and altitude in a coordinated turn, and increase in airspeed will…

Answer 17

Decrease the rate of turn resulting in change in load factor

Question 18

Which is true regarding the forces acting on an aircraft in a steady state descent? The sum of all…

Answer 18

Forward forces is equal to the sum of all rearward forces

Question 19

At an airspeed represented by point B, in steady flight, the pilot can expect to obtain the airplane’s maximum…
(The figure depicts a drag vs velocity chart. Induced drag, parasite drag and total drag are drawn on the chart. Point B is the intersection of the induced and parasite drag lines)

Answer 19

Glide range

Question 20

If severe turbulence is encountered during flight, the pilot should reduce the airspeed to…

Answer 20

Design-maneuvering speed

Question 21

While holding the angle of bank constant in a level turn, if the rate of turn is varied the load factor would…

Answer 21

Remain constant regardless of the air density and the resultant lift vector

Question 22

Airplane wing loading during a level coordinated turn in smooth air depends on the…

Answer 22

Angle of bank

Question 23

Load factor is the lift generated by the wings of an aircraft at any given time…

Answer 23

Divided by the total weight of the aircraft

Question 24

Which statement is true, regarding the opposing forces acting on an airplane in steady state level flight?

Answer 24

These forces are equal

Question 25

By changing the angle of attack of a wing, the pilot can control the airplane's...

Answer 25

Lift, airspeed and drag

Question 26

A aircraft wing is designed to produce lift resulting from a difference in the...

Answer 26

Higher air pressure below the wing's surface and lower pressure air above the wing's surface

Question 27

If the airspeed is increased from 90 knots to135 knots during a level 60 deg banked turn, the load factor will...

Answer 27

Remain the same but the radius of turn will increase

Question 28

During the transition from straight and level flight to a climb, the angle of attack is increased and lift...

Answer 28

Is momentarily increased

Question 29

Which is true regarding the force of lift in steady, unaccelerated flight? (Regarding the relationship between airspeed and angle of attack)

Answer 29

There is a corresponding indicated airspeed required for every angle of attack to generate sufficient lift to maintain altitude

Question 30

If airspeed is increased during a level turn, at action would be necessary to maintain altitude? The angle of attack...

Answer 30

Must be decreased or angle of bank increased

Question 31

Which statement is true relative to changing angle of attack? ( as it relates to drag)

Answer 31

An increase in angle of attack will increase drag

Question 32

Lift on a wing is most properly defined as the...

Answer 32

Force acting perpendicular to the relative wind

Question 33

In theory, if the angle if attack and other factors remain constant and the airspeed is doubled, the lift produced at the higher speed will be...

Answer 33

Four times greater than at the lower speed