ASC Cheat Sheet 2026

The 30 highest-yield ASC facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is the first priority in an avalanche rescue? → Ensure scene safety
2. When assessing avalanche risk during a warming trend with rain at higher elevations, the primary concern is: → Rapid loss of snowpack strength due to liquid water infiltration
3. How do ASC professionals evaluate the quality of research evidence? → By assessing methodology, sample size, peer review, and relevance
4. What is the primary purpose of an after-action review (AAR) following an avalanche incident or close call? → To identify what went well and what should change to prevent recurrence
5. Which scenario best illustrates 'social facilitation' risk during guided avalanche touring? → Clients peer-pressuring each other to ski a slope despite a guide's caution
6. What does 'InSAR' satellite technology measure that is useful for regional avalanche hazard assessment? → Ground surface deformation and snow volume changes via radar interferometry
7. What phenomenon causes new snow to become denser and stronger over time through the pressure of overlying layers? → Sintering and settlement
8. A junior guide on a professional team disagrees with the lead guide's terrain choice on a high-hazard day. The professionally appropriate action is to: → Raise the concern privately with the lead guide using specific observations
9. When a researcher conducts a 'blind' evaluation of snow stability tests, what potential error are they attempting to eliminate? → Observer bias, where knowing expected results influences interpretation
10. How do ASC professionals contribute to advancing their field? → By sharing knowledge, conducting research, and participating in professional discourse
11. During a beacon search, you receive a signal that suddenly disappears as you move forward. What is the most likely cause? → You have passed the flux line null zone — move perpendicular to re-acquire the signal
12. What does the Extended Column Test (ECT) measure that the Rutschblock test does NOT specifically isolate? → Crack propagation potential across a weak layer
13. What is the recommended patient position for transporting a hypothermic avalanche victim to evacuation? → Horizontal with minimal movement to prevent afterdrop and cardiac complications
14. A backcountry guide in Utah is sued after a client is caught in an avalanche. Which defense would be LEAST effective in court? → The guide argues they were not physically present when the avalanche released
15. The 'Wet Slab' avalanche problem is most commonly associated with which triggering mechanism? → Rapid warming, rain, or solar radiation that introduces liquid water into the snowpack
16. Which type of snow is most prone to sliding? → Faceted snow
17. When performing a fine search with a transceiver, what technique is used to pinpoint the burial location? → Use a cross-pattern bracket search to find the signal minimum, then mark the point
18. What is the primary purpose of 'control plots' in snowpack research studies? → To provide an unmanipulated baseline for comparison against experimental conditions
19. What practice improves group safety in avalanche zones? → Spacing out travel lines
20. What is the primary purpose of digging a snow pit? → To examine snowpack layering, identify weak layers, and assess stability
21. Which probe technique is recommended for the most efficient systematic search of a debris field? → Grid probing with 25–75 cm spacing, working methodically across the debris
22. On the North American Avalanche Danger Scale, at which danger level are 'natural and human-triggered avalanches certain'? → Extreme (5)
23. The 'avalanche problem' concept used by North American avalanche centers helps practitioners because it: → Specifies the type of avalanche, location, and likelihood to guide terrain choices
24. A stability test that produces a 'sudden planar' (SP) result indicates: → Abrupt, clean fracture propagating across the column—high concern for propagation
25. How does aspect affect which terrain features are most prone to Wind Slab avalanche problems? → Lee (downwind) aspects and cross-loaded terrain features accumulate drifted snow
26. What is the role of internal audits in Avalanche Safety Certification compliance management? → They verify adherence to regulations and identify areas needing improvement
27. Which tool is used to locate avalanche victims? → Transceiver
28. In most US states, what legal doctrine limits a ski resort's liability when a skier voluntarily enters a closed avalanche area? → Assumption of risk
29. What does a 'shooting crack' propagating away from your ski or board mean? → The slab is fracturing and conditions are highly unstable
30. Which standard best describes the professional approach to client waivers and informed consent in avalanche terrain? → Waivers document risk acknowledgment but do not replace the guide's duty of care