Chapter 2 Mine Rescue

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Questions and Answers

Match the following stages of a fire with their descriptions:

Incipient = Fire gases begin to fill the fire area Growth = Dense black smoke Fully Developed = Rollover is visible, little or no visible flame Decay = Smoke-stained or blackened windows

Match the following fire-gases with their examples:

Toxic Smoke = Carbon monoxide, hydrogen cyanide, and chlorine Clean Air = Oxygen, nitrogen, and helium Fire Gases = Water vapor, carbon dioxide, and smoke Harmless Gases = Helium, oxygen, and nitrogen

Match the following fire signs with their descriptions:

Dense black smoke = Indicates a fully developed fire Rollover = Indicates an incipient fire Smoke emanating under pressure = Indicates a growing fire Little or no visible flame = Indicates a decay stage

Match the following fire extinguisher ratings with their descriptions:

4A 60B C = Rated to extinguish 60 ft² of Class B fire, non-conductive agent 10A 80B C = Rated to extinguish 80 ft² of Class B fire, non-conductive agent 5A 40B C = Rated to extinguish 40 ft² of Class B fire, conductive agent 3A 20B C = Rated to extinguish 20 ft² of Class B fire, non-conductive agent Signup and view all the answers

Match the following fire signs with their stages:

Smoke-stained or blackened windows = Decay Dense black smoke = Fully Developed Rollover is visible = Fully Developed Fire gases begin to fill the fire area = Incipient Signup and view all the answers

Match the following fire characteristics with their descriptions:

Dense black smoke = Indicates a fire with little or no visible flame Rollover = Indicates a fire with little or no smoke Smoke emanating under pressure = Indicates a fire with a lot of smoke Little or no visible flame = Indicates a fire with dense black smoke Signup and view all the answers

Match the following fire extinguisher ratings with their features:

4A 60B C = Equivalent to 5 U.S. gallons of water, non-conductive agent 10A 80B C = Equivalent to 10 U.S. gallons of water, conductive agent 5A 40B C = Equivalent to 3 U.S. gallons of water, non-conductive agent 3A 20B C = Equivalent to 2 U.S. gallons of water, conductive agent Signup and view all the answers

Match the following fire signs with their characteristics:

Dense black smoke = Filled with fire gases Rollover = Indicates a fire with little or no smoke Smoke emanating under pressure = Fire gases begin to fill the fire area Little or no visible flame = Smoke-stained or blackened windows Signup and view all the answers

Match the following fire stages with their signs:

Incipient = Dense black smoke Growth = Smoke emanating under pressure Fully Developed = Rollover is visible Decay = Little or no visible flame Signup and view all the answers

Match the following fire extinguisher features with their descriptions:

4A 60B C = Rated to extinguish a Class B fire, non-conductive agent 10A 80B C = Rated to extinguish a Class A fire, conductive agent 5A 40B C = Rated to extinguish a Class C fire, non-conductive agent 3A 20B C = Rated to extinguish a Class B fire, conductive agent Signup and view all the answers

Study Notes

Mine Rescue Team Structure

The team structure includes: Decision-making Processes, Personal Protective Equipment requirements, Fresh Air Bases/Zones, and First Response to Hazardous Materials
Ensuring the team is response-ready, ensuring breathing apparatus and auxiliary equipment are response-ready, and ensuring safe operation of all rescue equipment
Knowledge of all facilities at the mine, relevant fire, explosive, electrical, mechanical, and chemical hazards, ventilation principles, and mine gases
Directing and assisting the work of team members at the scene, determining and inspecting all aspects of a rescue operation, and establishing and maintaining incident scene security and control
Exploring the affected area of the mine, rope work and rigging, firefighting, first aid, and extrication

Industrial Scientific Rescue

No information provided

Communication

Communication within the emergency response structure
Communication by team members

Time Management

Active Team (Max. 2 hrs.)
Back-up Team
Team at Rest
Time management plan for the rescue operation

Gas Hazards

Air Gas Mixture (AIR)

Blasting or other explosions
Mine fires
Diffusion from ore or country rock, as with methane or radon
Decay of mine timber
Absorption of oxygen by water or oxidation of timber or ore
Use of diesel motors underground
Gas released from thermal water -- carbon dioxide, hydrogen sulphide

Acetylene (C₂H₂)

No information provided

Ammonia (NH₃)

Move the leaking cylinder to an exhaust hood or safe outdoor area for venting
Mark the empty cylinder DEFECTIVE
Use a water spray or fog to reduce the gas cloud from a serious leak or spill
If possible, turn the leaking cylinder so that gas rather than liquid escapes
Isolate the area until the gas has dispersed

Toxic Gas Hazards

Carbon monoxide: always present at the time of a fire and gives little or no warning of its presence
Oxygen deficiency: occurs when oxygen is consumed by combustion or chemical reaction and is replaced by toxic or inert gases
Explosive gases and smoke: irritating qualities and obstructs vision
Methane: may cause fires or explosions
Sulphur Dioxide: present when a fire occurs in a sulphide ore body
Other gases: Hydrogen sulphide, nitrous oxides, hydrogen cyanide, etc.

Fire Stages

Incipient
Growth
Fully Developed
Decay

Fire Behavior

Dense black smoke
Fire gases begin to fill the fire area
Rollover is visible
Little or no visible flame
Smoke emanating under pressure from cracks, i.e., around windows or doors
Smoke may be drawn back in
Smoke is exiting in puffs or intervals
Black smoke becoming dense grey yellow
Smoke-stained or blackened windows

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Description

This quiz covers the basics of mine rescue, including team structure, communication, and decision-making processes. Test your knowledge of mine rescue operations!