Loading and performance - FAA Part 107 Drone Exam Prep

Question 1

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 2

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 3

What is a recommended practice when flying a small UAS in very cold temperatures?

Accepted Answer

Keep the batteries in a warm environment (like a heated car or inside your jacket) until immediately before the flight.

Answer

Pre-chill the batteries outside to acclimate them to the weather.

Answer

Discharge the battery to 50% before flying to prevent freezing.

Question 4

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 5

In weight and balance calculations, 'moment' is defined as:

Accepted Answer

Weight multiplied by the arm.

Answer

Weight divided by the arm.

Answer

The total duration of the flight.

Question 6

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 7

How do you calculate the Center of Gravity (CG) of an aircraft?

Accepted Answer

Divide total moment by total weight.

Answer

Divide total weight by total arm.

Answer

Multiply total weight by total moment.

Question 8

Before every flight, who is responsible for determining that the sUAS is properly loaded and within its weight and balance limits?

Accepted Answer

The Remote Pilot in Command (PIC).

Answer

The manufacturer.

Answer

The owner of the aircraft.

Question 9

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 10

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%.

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