20 Questions
What is the acceptable color for a natural gas flame when conducting burner checks?
Predominantly blue
What does a white plume in the chimney during burner operation indicate?
Presence of water vapour from the combustion process
What should the operator do if the boiler load increases?
Increase the fuel burned in the boiler furnace
What is the purpose of blowing through the gauge glass and water column in a steam boiler?
To prevent sediment accumulation and ensure operational controls
What is the recommended action if rust is evident in the gauge glass during steam boiler operation?
Check the return line for evidence of corrosion
What does a weeping or simmering safety valve indicate in a steam boiler?
Overpressure in the boiler
What is the primary reason for requiring continuous supervision of larger capacity steam boilers?
To prevent accidents and ensure public safety
Which of the following must steam boiler operators attend to with vigilance?
Steam pressure, water level, and burner conditions
What is part of the operator’s regular inspections for steam boilers?
Flue gas temperature, quality of feed and make-up water, and heat transfer efficiency
What are some of the routine activities that steam boiler operators must perform daily?
Boiler water treatment tests, make-up water monitoring, and continuous blowdown adjustment
What are the principles that are the same for burner operation in hot water and steam boilers?
Burner operating principles
What is the purpose of bottom blowoff in routine operation procedures for steam boilers?
To remove sludge and sediment from the boiler bottom
What is the purpose of soot blowing in a boiler?
To prevent the formation of scale on the heating surfaces
What may cause mild cases of foaming in a boiler?
Presence of antifoam chemicals
What should be done in persistent cases of foaming in a boiler?
Use blowdown and refill the boiler several times
What is the purpose of draining the float chamber in a low water cut-off test?
To remove sediment and test if the control shuts off the boiler
What should be done to prevent scale formation on the heating surfaces?
Proper treatment of the feedwater and boiler water
How can heat transfer efficiency be monitored in smaller plants?
By comparing daily fuel consumption and water level
What should be monitored to ensure efficient heat transfer?
Flue gas temperature and steam production
What is an indication of abnormal system water loss in a steam heating system?
Unexplained increases in make-up water
Test your knowledge of operating and maintaining larger capacity steam boilers with this quiz. Explore topics such as steam pressure, water level, burner conditions, safety devices, flue gas temperature, feed and make-up water quality, and heat transfer efficiency.
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