UAS Technical Skills and Training 3

Question 1

What is the recommended action if a UAS remote controller displays a 'signal lost' warning during flight?

Accepted Answer

Allow the drone to execute its programmed Return-to-Home (RTH) failsafe

Answer

Most UAS are programmed with a Return-to-Home failsafe that automatically activates when the RC link is lost, safely returning the drone to the launch point.

Question 2

Which component of a UAS flight controller is responsible for detecting rotational movement and providing attitude stabilization?

Accepted Answer

Gyroscope (IMU)

Answer

The gyroscope within the Inertial Measurement Unit (IMU) detects angular velocity and feeds data to the flight controller for real-time attitude correction.

Question 3

A pilot notices propeller vibration during a hover test. What is the most likely cause?

Accepted Answer

Propeller imbalance or damage

Answer

Propeller imbalance or physical damage creates asymmetric aerodynamic forces that manifest as vibration, which can damage motors and reduce control authority.

Question 4

What does 'Return-to-Home altitude' refer to in UAS flight planning?

Accepted Answer

The altitude the drone climbs to before flying back to the home point

Answer

RTH altitude is a pre-set height the drone climbs to before navigating home, ensuring it clears obstacles in the flight path.

Question 5

In UAS telemetry, what does RSSI stand for?

Accepted Answer

Received Signal Strength Indicator

Answer

RSSI (Received Signal Strength Indicator) measures the power level of the received radio signal, helping the pilot assess link quality and communication range.

(UAS) Unmanned Aircraft Systems Certified Practice Test

(UAS) Unmanned Aircraft Systems Certified Practice Test

UAS Technical Skills and Training 3