Podcast
Questions and Answers
Which of the following is NOT a method to control fire hazards?
Which of the following is NOT a method to control fire hazards?
- Proper maintenance of equipment
- Storing flammable materials in high-traffic areas (correct)
- Training personnel in fire fighting
- Installation of fire walls
What is the primary common source of ignition as noted in fire hazards?
What is the primary common source of ignition as noted in fire hazards?
- Static electricity
- Chemical reactions
- Heat (correct)
- Friction in machinery
What temperature can a thermite reaction produce during an ignition event?
What temperature can a thermite reaction produce during an ignition event?
- 3500 °C
- 2000 °C
- 1500 °C
- 3000 °C (correct)
Which factor contributes significantly to the spread of fire when working with machinery?
Which factor contributes significantly to the spread of fire when working with machinery?
What is a potential danger of packing away tools before they cool down?
What is a potential danger of packing away tools before they cool down?
What is the primary chemical reaction involved in the combustion of ordinary fires?
What is the primary chemical reaction involved in the combustion of ordinary fires?
Which of the following items is NOT considered a fire hazard?
Which of the following items is NOT considered a fire hazard?
Which of the following best describes the concept of the fire tetrahedron?
Which of the following best describes the concept of the fire tetrahedron?
What is a common cause of spontaneous combustion in a workplace setting?
What is a common cause of spontaneous combustion in a workplace setting?
Which fire classification is most relevant to Trinidad and Tobago?
Which fire classification is most relevant to Trinidad and Tobago?
Flashcards
Friction in Machinery
Friction in Machinery
Friction in machinery can lead to fires. This happens when surfaces rub against each other, generating heat. Oil and grease on machines can further intensify the fire.
Thermite Reaction
Thermite Reaction
Certain metals like aluminum alloys can react with rust (iron oxide) to create a very hot reaction called a thermite reaction, potentially igniting nearby flammable materials.
Proper Storage and Housekeeping
Proper Storage and Housekeeping
Proper storage and housekeeping are crucial to prevent fires. This includes storing flammable materials separately, keeping work areas clean, and using the right containers.
Proper Equipment Maintenance
Proper Equipment Maintenance
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Proper Ventilation
Proper Ventilation
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Fire
Fire
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Fire Triangle
Fire Triangle
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Fire Prevention
Fire Prevention
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Fire Classification
Fire Classification
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Fire Extinguishers
Fire Extinguishers
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Study Notes
Fire Hazards
- Fire is a chemical reaction requiring fuel, oxygen, and heat
- The fire triangle illustrates these three elements
- Combustible materials, oxygen, and heat together create a fire
- Identifying hazards like overloaded electrical systems, fuel storage issues, and blocked exits prevents fires
- Fire protection includes fire-proofing, proper storage, and maintenance of equipment
- Fire safety equipment like extinguishers requires training and maintenance.
Ignition Sources
- Heat is the most common ignition source
- Friction between moving parts creates heat, as does contact of different metals
- Excessive heat from hot surfaces is also a source
- Static electricity, especially from materials moving relative to each other, generates sparks
- Electrical arcing from circuit issues is another ignition source
Fire Classification
- Class A fires involve solid materials (wood, fabric)
- Class B fires involve flammable liquids and gases (oil, petrol)
- Class C fires are electrical fires (electrical appliances)
- Class D fires involve specific metals (sodium, potassium)
- Class F fires involve cooking oils/fats
Fire Extinction Methods
- Starvation (removing fuel source)
- Smothering (restricting oxygen)
- Cooling (reducing temperature)
- Direct interference (modifying chemical reaction)
- Portable extinguishers use extinguishing agents
Fire Protection
- Structural measures help contain fire spread (firewalls, sprinkler systems)
- Early detection systems (smoke detectors, heat detectors) help prevent escalation\
- Electrical safety, proper ventilation, and fire drills are essential for fire prevention, response, and control
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