Loading and performance - FAA Part 107 Drone Exam Prep

Question 1

If the Center of Gravity (CG) is too far forward, how does it affect the flight characteristics of an aircraft?

Accepted Answer

It makes the aircraft nose-heavy, requiring more back-pressure or elevator trim to maintain level flight.

Answer

It increases the maximum flight time.

Answer

It decreases the stalling speed.

Question 2

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

Accepted Answer

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

Answer

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

Answer

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

Question 3

During a crash, the lithium battery in your UAV is dislodged from its compartment and is found on the ground, 5 feet from the aircraft. You notice a dent in the battery, what should you do?

Accepted Answer

Discard battery regardless of condition.

Answer

Assess the condition of the battery and cautiously proceed, following manufacturer's recommendations.

Answer

Perform a test flight to ensure that all items are working properly.

Question 4

When computing weight and balance, the 'datum' is:

Accepted Answer

An imaginary vertical plane or line from which all measurements of arm are taken.

Answer

The exact center of the propeller hub.

Answer

The total weight of the aircraft empty.

Question 5

Density altitude is defined as:

Accepted Answer

Pressure altitude corrected for non-standard temperature.

Answer

The height above the standard datum plane.

Answer

The actual height of the aircraft above the ground.

Question 6

When an aircraft is in straight-and-level, unaccelerated flight, which forces are equal?

Accepted Answer

Lift equals weight and thrust equals drag.

Answer

Lift equals drag and thrust equals weight.

Answer

Lift equals thrust and weight equals drag.

Question 7

When an aircraft's center of gravity is located forward of the forward CG limit, the aircraft:

Accepted Answer

Will be highly stable, but will require more elevator pressure to raise the nose, decreasing performance.

Answer

Is highly unstable and difficult to control.

Answer

Will stall at a lower airspeed.

Question 8

The angle of attack is defined as the angle between the chord line of an airfoil and the:

Accepted Answer

Direction of the relative wind.

Answer

Pitch angle of the aircraft.

Answer

Rotor plane of rotation.

Question 9

Frost on the wings or propellers of a small UAS will:

Accepted Answer

Disrupt the smooth flow of air, reducing lift and increasing drag, potentially preventing takeoff.

Answer

Have no significant aerodynamic effect, though it adds slight weight.

Answer

Increase lift by changing the camber of the airfoil.

Question 10

If you add a payload to your drone that shifts the CG beyond the aft limit, what is the most likely aerodynamic consequence?

Accepted Answer

The drone will be tail-heavy and highly unstable, making it difficult or impossible to control.

Answer

The drone will be nose-heavy, causing it to descend rapidly.

Answer

The drone will automatically engage a return-to-home protocol.

Exam questions Loading and performance - FAA Part 107 Drone Exam Prep

FAA Part 107 Drone Exam Prep: Loading and performance 10 Questions no time limit

Exam questions Loading and performance - FAA Part 107 Drone Exam Prep

FAA Part 107 Drone Exam Prep: Loading and performance 10 Questions no time limit

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