UAS Applications and Use Cases 3

Question 1

Which UAS application generates a three-dimensional representation of terrain by measuring the time it takes for laser pulses to return to the sensor?

Accepted Answer

LiDAR scanning

Answer

LiDAR (Light Detection and Ranging) emits laser pulses and measures return time to create highly accurate 3D point clouds of terrain and structures.

Question 2

A coastal municipality wants to monitor beach erosion after a storm. Which UAS-generated product best quantifies volumetric sand loss?

Accepted Answer

Digital elevation model (DEM)

Answer

A digital elevation model captures terrain elevation data, allowing surveyors to compare pre- and post-storm DEMs to calculate exact volumetric changes.

Question 3

When UAS are used for bridge inspections, which type of flight path is typically programmed to ensure complete coverage of the structure's underside?

Accepted Answer

Automated waypoint mission following the bridge geometry

Answer

Automated waypoint missions are programmed to follow the bridge's specific geometry, ensuring systematic and complete coverage of complex structural surfaces.

Question 4

Which sector uses UAS to perform 'flare stack inspections' as a safer alternative to scaffolding or rope access?

Accepted Answer

Oil and gas

Answer

The oil and gas industry uses UAS to inspect flare stacks, which burn off excess hydrocarbons, eliminating the need for workers to access these extremely hazardous structures.

Question 5

A wildfire agency wants to use a drone to drop fire retardant on a hotspot. Under current FAA regulations, this operation primarily requires the drone to carry what?

Accepted Answer

A payload release mechanism approved for the operation

Answer

Dropping objects from a UAS requires that no hazard is created to persons or property below, and operations typically rely on an approved payload release mechanism.

(UAS) Unmanned Aircraft Systems Certified Practice Test

(UAS) Unmanned Aircraft Systems Certified Practice Test

UAS Applications and Use Cases 3