Western Canada Mine Rescue Manual: Chapter 3 Environmental Conditions Quiz
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Questions and Answers

In avalanche terminology, what is the zone where the avalanche decelerates and finally comes to rest?

  • Track zone
  • Starting zone
  • Transition zone
  • Run-out zone (correct)

    • What type of snow conditions can contribute to the development of avalanche conditions?

  • Dry snow with strong cohesion
  • Wet snow with good bonding
  • Uniform snow pack
  • Shallow areas with variable depth snow packs (correct)

    • Which environmental effects can contribute to avalanche conditions?

  • Variation in temperature, wind, humidity (correct)
  • Low wind speed
  • Constant humidity
  • Stable temperature

    • What events can trigger the occurrence of avalanches?

    <p>Temperature changes</p> Signup and view all the answers

    Which type of avalanche consists of heavy, wet, sun-heated or rainrotted snow?

    <p>Wet snow avalanche</p> Signup and view all the answers

    When do wet snow avalanches occur most commonly?

    <p>In spring and summer on south-facing slopes</p> Signup and view all the answers

    What are the characteristics of slab avalanches?

    <p>Simultaneously set in motion over a large area, may start in shallow or deep snow layers, and are the most dangerous</p> Signup and view all the answers

    What should teams performing rescue operations in an avalanche area be mentally prepared for?

    <p>The possibility of being overtaken by an avalanche themselves</p> Signup and view all the answers

    What precautions should be taken when crossing an avalanche track?

    <p>Select the shortest possible route high on the slope or low in the run-out zone</p> Signup and view all the answers

    What are the minimum required equipment for every avalanche rescuer?

    <p>Avalanche probe, transceiver (beacon), and shovel</p> Signup and view all the answers

    What type of ice is considered the strongest form of ice?

    <p>Clear or natural ice (black or blue hue)</p> Signup and view all the answers

    What may affect an ice's ability to support a load when travelling on ice?

    <p>The vehicle's speed and weight, as well as the depth of the water creating a resonance wave</p> Signup and view all the answers

    What is the main focus of Chapter 3 of the Western Canada Mine Rescue Manual?

    <p>Avalanche terms and concepts</p> Signup and view all the answers

    In avalanche-prone areas, what must mines develop?

    <p>An avalanche emergency response plan</p> Signup and view all the answers

    What is the role of a qualified avalanche safety officer in an active avalanche situation?

    <p>Conduct a risk assessment and establish safety measures</p> Signup and view all the answers

    What are the three main parts of an avalanche?

    <p>Starting zone, path, runout zone</p> Signup and view all the answers

    What does the term 'starting zone' refer to in the context of avalanches?

    <p>Where the unstable snow first breaks away</p> Signup and view all the answers

    What must mine rescue teams be aware of regarding environmental conditions?

    <p>Special dangers associated with environmental conditions</p> Signup and view all the answers

    Who must be identified and consulted in an active avalanche situation?

    <p>Avalanche safety officer</p> Signup and view all the answers

    What is the intended purpose of Chapter 3 in relation to avalanches?

    <p>To provide basic avalanche awareness only</p> Signup and view all the answers

    What should mines operating in avalanche-prone areas tailor their avalanche emergency response plan to?

    <p>'Their mine's unique conditions'</p> Signup and view all the answers

    When do avalanches occur?

    <p>At any time provided the right conditions are present</p> Signup and view all the answers

    What is the primary responsibility of a qualified avalanche safety officer?

    <p>Assess the risk and establish safety measures</p> Signup and view all the answers

    What must be done prior to planning emergency operations in an active avalanche situation?

    <p>Identify and consult with a qualified avalanche safety officer</p> Signup and view all the answers

    What is the leading cause of death for people in the outdoors?

    <p>Hypothermia</p> Signup and view all the answers

    What is the temperature range for severe hypothermia in degrees Celsius?

    <p>32.2–30.0</p> Signup and view all the answers

    What technique can increase predicted survival time by up to 50% in cold water?

    <p>Huddle Position</p> Signup and view all the answers

    Which area of the body loses heat fastest in cold water?

    <p>Chest</p> Signup and view all the answers

    What is the most critical heat-loss area in the body?

    <p>Head and neck</p> Signup and view all the answers

    Exposure to which of these factors can contribute to the development of hypothermia?

    <p>Wind and water</p> Signup and view all the answers

    Which condition is a symptom of moderate hypothermia?

    <p>Violent shivering</p> Signup and view all the answers

    "Hypothermia is caused by overexposure to a cold environment and can develop very quickly if proper precautions are not taken." What increases the risk of developing hypothermia?

    <p>&quot;Inadequate clothing&quot;</p> Signup and view all the answers

    "Hypothermia is a condition of lowered internal body-core temperature." What contributes to lowering internal body-core temperature?

    <p>&quot;Chilling by cold, wind, or water&quot;</p> Signup and view all the answers

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