Podcast
Questions and Answers
What is the function of the draught in a boiler?
What is the function of the draught in a boiler?
- To regulate the temperature of the boiler
- To reduce the efficiency of combustion
- To increase the pressure in the boiler
- To force air to the fire and carry away gaseous products of combustion (correct)
Which type of draught is obtained through the use of a chimney?
Which type of draught is obtained through the use of a chimney?
- Mechanical draught
- Artificial draught
- Natural draught (correct)
- Stem jet draught
What is the primary classification of draught types mentioned in the text?
What is the primary classification of draught types mentioned in the text?
- Industrial draught and residential draught
- Mechanical draught and steam jet draught
- Steam draught and chimney draught
- Natural draught and artificial draught (correct)
What materials can be used to build a chimney for obtaining natural draught?
What materials can be used to build a chimney for obtaining natural draught?
Why is proper combustion in a boiler furnace dependent on the quantity of air supplied?
Why is proper combustion in a boiler furnace dependent on the quantity of air supplied?
What is the purpose of having a chimney in a boiler installation?
What is the purpose of having a chimney in a boiler installation?
What is the main reason for the draught produced by a chimney?
What is the main reason for the draught produced by a chimney?
Why do the flue gases leaving a chimney in a natural draught system have a higher temperature compared to artificial draught systems?
Why do the flue gases leaving a chimney in a natural draught system have a higher temperature compared to artificial draught systems?
What is one of the reasons for loss in draught in a chimney?
What is one of the reasons for loss in draught in a chimney?
How does the absolute temperature of chimney gases relate to the effectiveness of chimney draught?
How does the absolute temperature of chimney gases relate to the effectiveness of chimney draught?
Why does natural draught result in higher heat carried away by flue gases compared to artificial draught?
Why does natural draught result in higher heat carried away by flue gases compared to artificial draught?
In a chimney, what constitutes about 20% of the total draught loss?
In a chimney, what constitutes about 20% of the total draught loss?
