Podcast
Questions and Answers
Which of the following is a fundamental aspect of mine rescue?
Which of the following is a fundamental aspect of mine rescue?
- Learning about the history of mine rescues
- Understanding the financial implications of toxic gases
- Identifying and responding to toxic and hazardous substances (correct)
- Exploring the cultural impact of mine rescues
What is the first priority for miners at the time of a mine fire?
What is the first priority for miners at the time of a mine fire?
- Protecting themselves from toxic and explosive gases (correct)
- Extinguishing the fire as quickly as possible
- Rescuing other trapped miners
- Documenting the types of gases emitted during the fire
What is the significance of 1 ppm in relation to toxic gases?
What is the significance of 1 ppm in relation to toxic gases?
- It is a negligible amount that poses no threat to human health
- It serves as a standard unit of measurement for toxic gases
- It is about as hard to visualize as the national debt (correct)
- It represents a deadly concentration of toxic gases
Why is it crucial for mine rescue teams to understand terms, concepts, and formulae related to mine gases?
Why is it crucial for mine rescue teams to understand terms, concepts, and formulae related to mine gases?
What can emit large quantities of toxic or explosive gases in a mine?
What can emit large quantities of toxic or explosive gases in a mine?
What does the text suggest about toxic chemicals in mine environments?
What does the text suggest about toxic chemicals in mine environments?
Which gas is a product of combustion in normal blasting operations and the operation of internal combustion engines?
Which gas is a product of combustion in normal blasting operations and the operation of internal combustion engines?
What is the physiological effect of carbon dioxide on humans at an atmosphere concentration of 100,000 ppm?
What is the physiological effect of carbon dioxide on humans at an atmosphere concentration of 100,000 ppm?
What is the explosive range of carbon monoxide?
What is the explosive range of carbon monoxide?
What is the physiological effect of hydrogen cyanide on humans?
What is the physiological effect of hydrogen cyanide on humans?
At what concentration in the atmosphere does chlorine cause chest pain, vomiting, coughing, difficulty breathing, and excess fluid in lungs (oedema)?
At what concentration in the atmosphere does chlorine cause chest pain, vomiting, coughing, difficulty breathing, and excess fluid in lungs (oedema)?
What is the effect of hydrogen on humans?
What is the effect of hydrogen on humans?
Which gas is a flammable caustic gas with a strong and distinctive smell detectable at concentrations of 1 to 50 ppm?
Which gas is a flammable caustic gas with a strong and distinctive smell detectable at concentrations of 1 to 50 ppm?
What is the explosive range of Acetylene?
What is the explosive range of Acetylene?
Which gas has an explosive range of 16%–25%?
Which gas has an explosive range of 16%–25%?
What is the most stable method of storing Acetylene?
What is the most stable method of storing Acetylene?
Which gas forms an explosive compound with copper and alloys containing more than 67% copper?
Which gas forms an explosive compound with copper and alloys containing more than 67% copper?
What effect may Carbon Dioxide have when breathed in large quantities?
What effect may Carbon Dioxide have when breathed in large quantities?
Which gas has an explosive range of 1.8%–11.7%?
Which gas has an explosive range of 1.8%–11.7%?
What is the main effect on humans of exposure to Nitrogen Dioxide (NO₂) at 200–700 PPM?
What is the main effect on humans of exposure to Nitrogen Dioxide (NO₂) at 200–700 PPM?
At what % O₂ in the atmosphere do humans experience dizziness, buzzing noise, rapid pulse, headache, and blurred vision?
At what % O₂ in the atmosphere do humans experience dizziness, buzzing noise, rapid pulse, headache, and blurred vision?
Which gas is immediately dangerous to life and health (IDLH) at 100 PPM?
Which gas is immediately dangerous to life and health (IDLH) at 100 PPM?
What is the main property of Methane (CH₄) that makes it noticeable in work environments?
What is the main property of Methane (CH₄) that makes it noticeable in work environments?
What is the main effect of Hydrogen Sulphide (H₂S) on humans at 100 PPM?
What is the main effect of Hydrogen Sulphide (H₂S) on humans at 100 PPM?
What is the Threshold Limit Value - Time Weighted Average (TLV-TWA)?
What is the Threshold Limit Value - Time Weighted Average (TLV-TWA)?
What is the Median Lethal Dose (LD50)?
What is the Median Lethal Dose (LD50)?
What are the Lower and Upper Explosive Limits (LEL and UEL)?
What are the Lower and Upper Explosive Limits (LEL and UEL)?
What is Relative density (vapour density or specific gravity)?
What is Relative density (vapour density or specific gravity)?
What does the pH scale measure?
What does the pH scale measure?
What are Threshold Limit Values (TLVs)?
What are Threshold Limit Values (TLVs)?
What is the explosive range of propane?
What is the explosive range of propane?
How is sulphur dioxide formed?
How is sulphur dioxide formed?
What are the effects of exposure to mild to severe concentrations of sulphur dioxide (SO₂)?
What are the effects of exposure to mild to severe concentrations of sulphur dioxide (SO₂)?
During and following fires, what are the two greatest hazards to life according to the text?
During and following fires, what are the two greatest hazards to life according to the text?
What gas is indicated when hydrogen sulfide is present?
What gas is indicated when hydrogen sulfide is present?
What are the gases produced by burning rubber, neoprene, and PVC according to the text?
What are the gases produced by burning rubber, neoprene, and PVC according to the text?
What is the relative density of ammonia compared to air?
What is the relative density of ammonia compared to air?
Which gas has an explosive range of 4–74%?
Which gas has an explosive range of 4–74%?
'Polyvinylchloride (PVC)-covered belting is practically non-flammable, but when heated, PVC gives off which gas?'
'Polyvinylchloride (PVC)-covered belting is practically non-flammable, but when heated, PVC gives off which gas?'
'What source of radiation is released into the mine's atmosphere as it continues to decay?'
'What source of radiation is released into the mine's atmosphere as it continues to decay?'
