Operating outside of the weight and balance limits of an unmanned aircraft

A. can result in loss of control of the aircraft.

C. is not possible per aircraft design.

An unmanned aircraft has been loaded in such a manner that the CG is located aft of the aft CG limit. One undesirable flight characteristic a remote pilot might experience with this aircraft would be

B. difficulty in recovering from a stalled condition.

C. stalling at higher-than-normal airspeed.

The four forces acting on an airplane in flight are

A. lift, weight, thrust, and drag.

B. lift, weight, gravity, and thrust.

C. lift, gravity, power, and friction.

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

A. During unaccelerated flight.

B. When the aircraft is accelerating.

C. When the aircraft is at rest on the ground.

The term "angle of attack" is defined as the angle between the

A. chord line of the wing and the relative wind.

B. airplanes longitudinal axis and that of the air striking the airfoil.

C. airplane's centerline and the relative wind.

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.

An airplane said to be inherently stable will

B. require less effort to control.

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

C. abruptness at which the load is applied.

What effect does high density altitude, as compared to low density altitude, have on propeller efficiency and why?

B. Efficiency is reduced because the propeller exerts less force at high density altitudes than at low density altitudes.

A. Efficiency is increased due to less friction on the propeller blades.

C. Efficiency is reduced due to the increased force of the propeller in the thinner air.

What is density altitude?

B. The pressure altitude corrected for non-standard temperature.

A. The height above the standard datum plane.

C. The altitude read directly from the altimeter.

If the outside air temperature (OAT) at a given altitude is warmer than standard, the density altitude is

C. higher than pressure altitude.

B. lower than pressure altitude.

Which combination of atmospheric conditions will reduce aircraft takeoff and climb performance?

C. High temperature, high relative humidity, and high density altitude.

A. Low temperature, low relative humidity, and low density altitude.

B. High temperature, low relative humidity, and low density altitude.

What effect does high density altitude have on aircraft performance?

B. It reduces climb performance.

A. It increases engine performance.

C. It increases takeoff performance.

What effect, if any, does high humidity have on aircraft performance?

C. It has no effect on performance.

The angle of attack at which an airplane wing stalls will

C. remain the same regardless of gross weight.

A. increase if the CG is moved forward.

B. change with an increase in gross weight.

Under which condition will pressure altitude be equal to true altitude?

B. When standard atmospheric conditions exist.

A. When the atmospheric pressure is 29.92 inches Hg.

C. When indicated altitude is equal to the pressure altitude.

Under what condition is pressure altitude and density altitude the same value?

A. At sea level, when the temperature is 0 °F.

B. When the altimeter has no installation error.

Which factor would tend to increase the density altitude at a given airport?

B. An increase in ambient temperature.

A. An increase in barometric pressure.

C. A decrease in relative humidity.

Which statement relates to Bernoulli's principle?

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

A. For every action there is an equal and opposite reaction.

B. An additional upward force is generated as the lower surface of the wing deflects air downward.

Changes in the center of pressure of a wing affect the aircraft's

C. aerodynamic balance and controllability.

Center of gravity can be found by

C. dividing total moment by total weight.

A. multiplying weight times arm.

B. dividing total weight by total moment.

In weight and balance calculations, arm is

B. the distance from the datum line to the item.

Loading & Performance

Authored by Kevin Maddox

Other

9th Grade - Professional Development

Used 7+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What effect does high density altitude have on the efficiency of a UA propeller?

A. Propeller efficiency is increased.

B. Propeller efficiency is decreased.

C. Density altitude does not affect propeller efficiency.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To ensure that the unmanned aircraft center of gravity (CG) limits are not exceeded, follow the aircraft loading instructions specified in the

A. Pilot's Operating Handbook or UAS Flight Manual.

B. Aeronautical Information Manual (AIM).

C. Aircraft Weight and Balance Handbook.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What could be a consequence of operating a small unmanned aircraft above its maximum allowable weight?

A. Shorter endurance.

B. Faster speed.

C. Increased maneuverability.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to 14 CFR part 107, who is responsible for determining the performance of a small unmanned aircraft?

A. Remote pilot-in-command.

B. Manufacturer.

C. Owner or operator.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When operating an unmanned airplane, the remote pilot should consider that the load factor on the wings may be increased any time

A. the CG is shifted rearward to the aft CG limit.

B. the airplane is subjected to maneuvers other than straight-and-level flight.

C. the gross weight is reduced.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A stall occurs when the smooth airflow over the unmanned airplane's wing is disrupted, and the lift degenerates rapidly. This is caused when the wing

A. exceeds the maximum speed.

B. exceeds maximum allowable operating weight.

C. exceeds its critical angle of attack.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(Refer to Figure 2.) If an unmanned airplane weighs 33 pounds, what approximate weight would the airplane structure be required to support during a 30° banked turn while maintaining altitude?

A. 34 pounds.

B. 47 pounds.

C. 38 pounds.

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Loading & Performance

What effect does high density altitude have on the efficiency of a UA propeller?

To ensure that the unmanned aircraft center of gravity (CG) limits are not exceeded, follow the aircraft loading instructions specified in the

What could be a consequence of operating a small unmanned aircraft above its maximum allowable weight?

According to 14 CFR part 107, who is responsible for determining the performance of a small unmanned aircraft?

When operating an unmanned airplane, the remote pilot should consider that the load factor on the wings may be increased any time

A stall occurs when the smooth airflow over the unmanned airplane's wing is disrupted, and the lift degenerates rapidly. This is caused when the wing

(Refer to Figure 2.) If an unmanned airplane weighs 33 pounds, what approximate weight would the airplane structure be required to support during a 30° banked turn while maintaining altitude?

How would high density altitude affect the performance of a small unmanned aircraft?

Operating outside of the weight and balance limits of an unmanned aircraft

(Refer to Figure 2.) If an unmanned aircraft weighs 20 pounds, what approximate weight would the aircraft structure be required to support during a 60° banked turn while maintaining altitude?

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