ASC Technology & Digital Tools 3

Question 1

Which data layer in an avalanche forecasting app shows where previous avalanches have occurred?

Accepted Answer

Crown line observation layer

Answer

Crown line observation layers map documented avalanche crowns, indicating slopes that have released and providing clues about current weak layers.

Question 2

When multiple transceivers are being searched, what feature helps modern 3-antenna digital units isolate individual signals?

Accepted Answer

Multiple victim marking capability

Answer

Multiple victim marking allows searchers to 'mark' a located transceiver so the device suppresses that signal and highlights the next victim's signal.

Question 3

What is the recommended minimum battery level for an avalanche transceiver before entering the backcountry?

Accepted Answer

75% or higher

Answer

Most manufacturers and avalanche educators recommend a minimum of 75% battery life to ensure reliable transceiver operation throughout a full day in the field.

Question 4

Which map projection format is most commonly used in backcountry navigation apps for accurate distance measurements?

Accepted Answer

UTM (Universal Transverse Mercator)

Answer

UTM is preferred for field navigation because it uses metric grid coordinates and maintains accurate distance and area measurements across small regions.

Question 5

What does 'avalanche danger rose' visualization in forecasting apps display?

Accepted Answer

Danger ratings broken down by elevation band and aspect

Answer

The danger rose shows how avalanche danger varies across different aspects (compass directions) and elevation bands, helping users make terrain choices.

(ASC) Avalanche Safety Certification Practice Test

(ASC) Avalanche Safety Certification Practice Test

ASC Technology & Digital Tools 3