UAS Technical Skills and Training 2

Question 1

What is the primary purpose of a UAS preflight inspection checklist?

Accepted Answer

To systematically verify all components are airworthy before flight

Answer

A preflight checklist ensures each critical system and component is verified airworthy, reducing the risk of in-flight failures.

Question 2

Which type of UAS control system architecture uses onboard sensors to maintain stable flight without constant pilot input?

Accepted Answer

Stabilized/autopilot mode

Answer

Stabilized or autopilot mode uses onboard IMU and barometer data to autonomously hold attitude and altitude, reducing pilot workload.

Question 3

When calibrating a UAS compass, why should the operator move away from metal structures?

Accepted Answer

Ferrous metal distorts the local magnetic field, causing inaccurate calibration

Answer

Nearby ferrous metals generate local magnetic anomalies that interfere with compass calibration, resulting in incorrect heading data.

Question 4

What does ESC stand for in UAS propulsion systems?

Accepted Answer

Electronic Speed Controller

Answer

An Electronic Speed Controller (ESC) regulates motor RPM by converting flight controller signals into the correct power output for each motor.

Question 5

A multirotor UAS experiences a sudden loss of one motor during flight. What is the immediate effect on the aircraft?

Accepted Answer

The drone will yaw and descend uncontrollably toward the failed motor side

Answer

Loss of one motor disrupts the balanced thrust and torque, causing the drone to yaw and roll toward the failed motor and descend.

(UAS) Unmanned Aircraft Systems Certified Practice Test