Loading and performance - FAA Part 107 Drone Exam Prep

Question 1

What is the effect on the propeller efficiency of low density altitude?

Accepted Answer

Propeller efficiency is increased.

Answer

There is no effect on propeller efficiency.

Answer

Propeller efficiency is decreased.

Question 2

Can an aircraft stall at any airspeed?

Accepted Answer

Yes, a stall can occur at any airspeed and any flight attitude if the critical angle of attack is exceeded.

Answer

No, an aircraft can only stall at its published stall speed.

Answer

No, an aircraft cannot stall if the throttle is at 100%.

Question 3

Humidity affects density altitude because:

Accepted Answer

Water vapor is lighter than dry air, making moist air less dense and thereby increasing the density altitude.

Answer

Water vapor is heavier than dry air, making moist air more dense and thereby decreasing density altitude.

Answer

Humidity physically coats the propellers with water, adding weight.

Question 4

If the temperature increases from 60°F to 90°F at your flying site, what happens to the density altitude and your drone's performance?

Accepted Answer

Density altitude increases, and drone performance decreases.

Answer

Density altitude decreases, and drone performance increases.

Answer

Density altitude increases, and drone performance increases.

Question 5

How does an increased load factor affect the performance of a small UAS?

Accepted Answer

It increases the stall speed and requires more power to maintain altitude.

Answer

It decreases the stall speed and increases flight time.

Answer

It has no effect on performance.

Question 6

As altitude increases, what happens to the true airspeed of a fixed-wing sUAS flying at a constant indicated airspeed?

Accepted Answer

True airspeed increases because the air is less dense.

Answer

True airspeed decreases.

Answer

True airspeed remains the same.

Question 7

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

Accepted Answer

chord line of the wing and the relative wind.

Answer

airplane's longitudinal axis and that of the air striking the airfoil.

Answer

airplane's centerline and the relative wind.

Question 8

You are flying a quadcopter and maneuvering aggressively, causing steep banks and rapid pull-ups. How does this affect the structural integrity of the drone?

Accepted Answer

It increases the load factor, placing higher stress on the airframe and motors.

Answer

It strengthens the frame by testing its flexibility.

Answer

It reduces the load factor because the drone is moving quickly.

Question 9

Which of the following is true regarding lithium polymer (LiPo) batteries used in most small UAS?

Accepted Answer

They are highly flammable and can catch fire if punctured, overcharged, or exposed to extreme heat.

Answer

They perform best when stored fully depleted.

Answer

They are immune to temperature extremes.

Question 10

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.

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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