Podcast
Questions and Answers
What is the acceptable color of a natural gas flame?
What is the acceptable color of a natural gas flame?
- Dark red
- Mostly blue with some unavoidable orange at the tips (correct)
- Bright yellow
- Predominantly orange
What does a white plume in the chimney indicate about the combustion process?
What does a white plume in the chimney indicate about the combustion process?
- The presence of water vapour is harmful and indicates an increase in fuel temperature
- The presence of water vapour is a problem and indicates inefficiency
- The presence of water vapour is normal and insignificant (correct)
- The presence of water vapour is harmful and indicates incomplete combustion
What does a high flue gas temperature indicate?
What does a high flue gas temperature indicate?
- Improvement in heat transfer efficiency
- Reduction in boiler efficiency (correct)
- Reduction in excess air
- Cleaning of heat transfer surfaces
What is the main reason for regular checks of hot water heating boilers?
What is the main reason for regular checks of hot water heating boilers?
What is included in routine boiler checks?
What is included in routine boiler checks?
What is the purpose of tracking the stack temperature?
What is the purpose of tracking the stack temperature?
What is the recommended maximum boiler water temperature for hot water heating boilers?
What is the recommended maximum boiler water temperature for hot water heating boilers?
What does 'fully automatic' mean in the context of hot water boilers?
What does 'fully automatic' mean in the context of hot water boilers?
What is the purpose of burner programmed combustion control?
What is the purpose of burner programmed combustion control?
What is the purpose of the safety relief valve in low-pressure hot water heating boilers?
What is the purpose of the safety relief valve in low-pressure hot water heating boilers?
Why do hot water boilers still need regular attention despite their automatic systems?
Why do hot water boilers still need regular attention despite their automatic systems?
What should operators observe in the condition of the burner flame during daily routine procedures?
What should operators observe in the condition of the burner flame during daily routine procedures?
What is a common cause of water loss from a hot water heating system?
What is a common cause of water loss from a hot water heating system?
What can happen if the expansion tank is full in a hot water heating system?
What can happen if the expansion tank is full in a hot water heating system?
How can the air charge in a bladder-style expansion tank be checked?
How can the air charge in a bladder-style expansion tank be checked?
What may happen if the tank pressure does not increase when adding air to a bladder-style expansion tank?
What may happen if the tank pressure does not increase when adding air to a bladder-style expansion tank?
What should be done if a conventional air cushion expansion tank loses air and fills with water?
What should be done if a conventional air cushion expansion tank loses air and fills with water?
What is required for hot water heating systems that have had major leaks or equipment replacement?
What is required for hot water heating systems that have had major leaks or equipment replacement?
Under what circumstances are hot water heating boilers blown off or blown down?
Under what circumstances are hot water heating boilers blown off or blown down?
What reduces the need for internal water treatment in hot water heating systems?
What reduces the need for internal water treatment in hot water heating systems?
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