OEC Technology & Digital Tools 2

Question 1

Which satellite communication device sends a distress signal with GPS coordinates to NOSAR/COSPAS via dedicated emergency satellites?

Accepted Answer

Personal Locator Beacon (PLB)

Answer

PLBs transmit a dedicated 406 MHz distress signal to COSPAS-SARSAT satellites, providing GPS coordinates to search and rescue authorities.

Question 2

When using a GPS device for navigation in avalanche terrain, which additional digital tool is most critical for OEC providers?

Accepted Answer

An avalanche transceiver (beacon)

Answer

An avalanche transceiver (beacon) allows searchers to locate buried victims via 457 kHz signal, making it essential alongside GPS in avalanche terrain.

Question 3

In the RECCO system used by ski patrol, what technology does the passive reflector use to assist in victim location?

Accepted Answer

Radar harmonic detection

Answer

RECCO reflectors use passive harmonic radar technology — they return a doubled-frequency radar signal to the detector, revealing the victim's location.

Question 4

An OEC technician uses a pulse oximeter in a high-altitude environment. Which physiological effect of altitude most directly invalidates peripheral SpO2 readings?

Accepted Answer

Peripheral vasoconstriction reducing perfusion

Answer

Cold-induced peripheral vasoconstriction reduces blood flow to fingertips, causing poor signal quality and inaccurate pulse oximeter readings.

Question 5

Which app feature is most useful for an OEC provider coordinating a backcountry rescue with no cell service?

Accepted Answer

Offline downloadable topographic maps

Answer

Offline topographic maps (e.g., Gaia GPS, CalTopo) allow navigation and location sharing without cellular connectivity during backcountry rescues.

(OEC) Outdoor Emergency Care Certification Practice Test

(OEC) Outdoor Emergency Care Certification Practice Test

OEC Technology & Digital Tools 2