Podcast
Questions and Answers
What are the three elements that make up the fire triangle?
What are the three elements that make up the fire triangle?
- Hydrogen, Carbon, Heat
- Fuel, Oxygen, Heat (correct)
- Ignition, Combustion, Oxygen
- Liquid, Gas, Heat
Which gas has the highest calorific value?
Which gas has the highest calorific value?
- Propane
- Methane
- Butane (correct)
- Natural gas
What is natural gas primarily used for in domestic settings?
What is natural gas primarily used for in domestic settings?
- Cooking and barbecue
- Soldering metals
- Filling gas tanks
- Heating water and space heating (correct)
Which type of gas is typically too hot for soldering applications?
Which type of gas is typically too hot for soldering applications?
What is the approximate air/gas ratio for propane?
What is the approximate air/gas ratio for propane?
Which gas is used in barbecues due to its high calorific value?
Which gas is used in barbecues due to its high calorific value?
Which of the following gases requires ventilation when used?
Which of the following gases requires ventilation when used?
Which gas has the lower flame temperature between propane and butane?
Which gas has the lower flame temperature between propane and butane?
What is the primary chemical reaction that defines combustion?
What is the primary chemical reaction that defines combustion?
Which gas is primarily associated with cooking when mains gas is unavailable?
Which gas is primarily associated with cooking when mains gas is unavailable?
Which gas has the highest flame temperature among the three common gases?
Which gas has the highest flame temperature among the three common gases?
What is the relative density of natural gas?
What is the relative density of natural gas?
What is the calorific value of natural gas?
What is the calorific value of natural gas?
What type of gas is typically used for soldering applications?
What type of gas is typically used for soldering applications?
Which gases require ventilation and are commonly used in caravans?
Which gases require ventilation and are commonly used in caravans?
In the context of gas usage, what does a higher calorific value indicate?
In the context of gas usage, what does a higher calorific value indicate?
Flashcards
What are the 3 elements of the fire triangle?
What are the 3 elements of the fire triangle?
The three elements needed for combustion to occur: fuel, oxygen, and heat.
What are the 3 most common gases used in plumbing?
What are the 3 most common gases used in plumbing?
Natural gas, propane, and butane are the three most common gases used in plumbing.
Which has a higher flame temperature: propane or butane?
Which has a higher flame temperature: propane or butane?
Butane has a higher flame temperature than propane.
What is natural gas typically used for?
What is natural gas typically used for?
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What's the calorific value of butane?
What's the calorific value of butane?
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What is calorific value?
What is calorific value?
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What is Combustion?
What is Combustion?
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What is air/gas ratio?
What is air/gas ratio?
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What is the fire triangle?
What is the fire triangle?
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Which three gases commonly used in plumbing?
Which three gases commonly used in plumbing?
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What does 'calorific value' mean?
What does 'calorific value' mean?
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What are the uses of natural gas?
What are the uses of natural gas?
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What are the uses of propane?
What are the uses of propane?
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What are the uses of butane?
What are the uses of butane?
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What is the air/gas ratio?
What is the air/gas ratio?
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Study Notes
Principles of Combustion and Heating Gases
- Combustion is a chemical reaction with oxygen
- Fuel + Oxygen + Heat = Fire
- Propane + Oxygen + spark = Flame
- Fire is one of the most destructive elements
- The three elements of the fire triangle are fuel, oxygen, and heat.
Lesson Intent
- Learners will be able to identify the three elements of the fire triangle
- Learners will be able to identify the different types of gases used in plumbing situations
- Learners will be able to explain the different principles of combustion
- Learners will be able to determine where different types of gases are used in plumbing situations
Types of Common Gases
- Natural gas
- Propane
- Butane
Uses of Gases in Plumbing
- Soldering
- Heating water
- Space heating
- Cooking
Gas Properties
| Gas | Relative Density | Calorific Value (MJ/m³) | Flame Temperature (°C) | Air/Gas Ratio (approx) |
|---|---|---|---|---|
| Natural gas | 0.58 | 39 | 1950 | 2:1 |
| Propane | 1.78 | 95.0 | 1980 | 5:1 |
| Butane | 2.0 | 121.5 | 1996 | 6.5:1 |
Specific Applications of Gases
- Natural gas: Commonly used for domestic boilers and cookers; ventilation is required for some applications, such as soldering.
- Propane: Commonly used for caravan boilers and cooking; also used if mains gas is unavailable; ventilation is required.
- Butane: Commonly used in barbecues; too hot for soldering; ventilation is needed.
Review Questions
- What are the three elements of the fire triangle?
- What are the three most common gases used for plumbing?
- Which gas has a higher flame temperature, propane or butane?
- What is natural gas used for?
- What is the calorific value of butane?
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Description
This quiz explores the fundamental principles of combustion and the role of different gases used in plumbing. Learners will identify the three elements of the fire triangle and understand the properties and applications of common gases like natural gas, propane, and butane. Test your knowledge on gas properties and their practical uses.
