Mining Industry Training in Saskatchewan
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Questions and Answers

Who conducted the first training in Saskatchewan for mine workers in the 1950s?

  • Eldorado and Gunnar Mines
  • Herb Aitchison
  • Jack Chrisp (correct)
  • Chemox and McCaa
  • Which types of breathing apparatus were the mine workers trained to use in the 1950s?

  • Chemox and McCaa (correct)
  • Universal gas masks and Type N masks
  • McCaa and Universal gas masks
  • One-hour Chemox and two-hour McCaa
  • Where was a mine rescue station established by the provincial government in 1957?

  • Flin Flon, Manitoba
  • Northern Saskatchewan
  • Uranium City (correct)
  • Beaverlodge area
  • Who was responsible for providing man power to the mine rescue stations?

    <p>Mining companies</p> Signup and view all the answers

    Who was placed in charge of the mine rescue station in Uranium City?

    <p>Herb Aitchison</p> Signup and view all the answers

    In the mid-1970s, who was given the task of training mine rescue personnel?

    <p>Mining companies</p> Signup and view all the answers

    At what concentration does carbon monoxide become a dangerous gas due to its affinity for red blood cells?

    <p>Several hundred ppm</p> Signup and view all the answers

    What is the most well-known danger from the combustion of gases mentioned in the text?

    <p>Carbon monoxide poisoning</p> Signup and view all the answers

    What hazard is produced if the concentration of a gas approaches its Lower Explosive Limit (LEL)?

    <p>An explosive hazard</p> Signup and view all the answers

    At what oxygen concentration are the effects of low oxygen content discernable?

    <p>17%</p> Signup and view all the answers

    What can result in asphyxiation when released into an enclosed area?

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

    What happens when an industrial gas is released quickly and in sufficient volume from a pressure vessel?

    <p>It creates an explosive hazard</p> Signup and view all the answers

    What flow rates of air per person are recommended by MASHA to keep CO2 levels below 5000 ppm?

    <p>50 to 100 scfm</p> Signup and view all the answers

    Why is the use of standard sized cylinders impractical for extended protection in a refuge station?

    <p>They require large volumes of compressed air</p> Signup and view all the answers

    What design consideration is crucial for the outlet in a refuge station?

    <p>To maintain positive pressure</p> Signup and view all the answers

    What should mine rescue personnel be familiar with regarding refuge stations?

    <p>Basic design considerations</p> Signup and view all the answers

    What is one of the main tasks of the mine rescue team following a toxic gas release?

    <p>Determining if it is safe for workers to return to the mine</p> Signup and view all the answers

    What is the underlying assumption of the threshold limit concept?

    <p>Below TLV, no ill health should result from long-term exposure</p> Signup and view all the answers

    What is the impact of radio frequencies on gas detection instruments?

    <p>They may be affected if a radio is keyed with the instrument close by</p> Signup and view all the answers

    Why might workers seal themselves into a heading during an emergency?

    <p>To create a cocoon of breathable air around them</p> Signup and view all the answers

    What happens when workers seal themselves in an enclosed space without replenishing oxygen?

    <p>There is an increase in the level of carbon dioxide</p> Signup and view all the answers

    Why is it important to maintain an adequate supply of breathable air in a refuge center?

    <p>To reduce the risk of carbon dioxide poisoning</p> Signup and view all the answers

    What can happen if there is insufficient oxygen supply in a refuge center for an extended period?

    <p>Carbon dioxide levels rise to toxic levels</p> Signup and view all the answers

    How do pressurized cylinders help maintain breathable air in emergency situations?

    <p>By replenishing oxygen supply</p> Signup and view all the answers

    What happens if oxygen is less than 19.5 percent by volume?

    <p>Convulsive movements and gasping respiration occur</p> Signup and view all the answers

    What is the main health effect associated with chronic exposure to elevated concentrations of radon?

    <p>Lung cancer</p> Signup and view all the answers

    At what volume percentage of oxygen does heart action cease after respiration stops?

    <p>23 percent</p> Signup and view all the answers

    What is the main property of oxygen that makes it support combustion?

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

    What is the historical method used for detecting oxygen deficiency?

    <p>Safety lamp flame extinguishing</p> Signup and view all the answers

    Which gas provides higher exposure to radiation than radon itself?

    <p>Radon progeny</p> Signup and view all the answers

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