30 Questions
Who conducted the first training in Saskatchewan for mine workers in the 1950s?
Jack Chrisp
Which types of breathing apparatus were the mine workers trained to use in the 1950s?
Chemox and McCaa
Where was a mine rescue station established by the provincial government in 1957?
Uranium City
Who was responsible for providing man power to the mine rescue stations?
Mining companies
Who was placed in charge of the mine rescue station in Uranium City?
Herb Aitchison
In the mid-1970s, who was given the task of training mine rescue personnel?
Mining companies
At what concentration does carbon monoxide become a dangerous gas due to its affinity for red blood cells?
Several hundred ppm
What is the most well-known danger from the combustion of gases mentioned in the text?
Carbon monoxide poisoning
What hazard is produced if the concentration of a gas approaches its Lower Explosive Limit (LEL)?
An explosive hazard
At what oxygen concentration are the effects of low oxygen content discernable?
17%
What can result in asphyxiation when released into an enclosed area?
Methane
What happens when an industrial gas is released quickly and in sufficient volume from a pressure vessel?
It creates an explosive hazard
What flow rates of air per person are recommended by MASHA to keep CO2 levels below 5000 ppm?
50 to 100 scfm
Why is the use of standard sized cylinders impractical for extended protection in a refuge station?
They require large volumes of compressed air
What design consideration is crucial for the outlet in a refuge station?
To maintain positive pressure
What should mine rescue personnel be familiar with regarding refuge stations?
Basic design considerations
What is one of the main tasks of the mine rescue team following a toxic gas release?
Determining if it is safe for workers to return to the mine
What is the underlying assumption of the threshold limit concept?
Below TLV, no ill health should result from long-term exposure
What is the impact of radio frequencies on gas detection instruments?
They may be affected if a radio is keyed with the instrument close by
Why might workers seal themselves into a heading during an emergency?
To create a cocoon of breathable air around them
What happens when workers seal themselves in an enclosed space without replenishing oxygen?
There is an increase in the level of carbon dioxide
Why is it important to maintain an adequate supply of breathable air in a refuge center?
To reduce the risk of carbon dioxide poisoning
What can happen if there is insufficient oxygen supply in a refuge center for an extended period?
Carbon dioxide levels rise to toxic levels
How do pressurized cylinders help maintain breathable air in emergency situations?
By replenishing oxygen supply
What happens if oxygen is less than 19.5 percent by volume?
Convulsive movements and gasping respiration occur
What is the main health effect associated with chronic exposure to elevated concentrations of radon?
Lung cancer
At what volume percentage of oxygen does heart action cease after respiration stops?
23 percent
What is the main property of oxygen that makes it support combustion?
Flammable
What is the historical method used for detecting oxygen deficiency?
Safety lamp flame extinguishing
Which gas provides higher exposure to radiation than radon itself?
Radon progeny
Test your knowledge on the early days of training for the Saskatchewan mining industry, involving uranium mines in the Beaverlodge area and training sessions conducted by Jack Chrisp from Hudson Bay Mining and Smelting. Learn about the equipment used and the importance of safety measures.
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