Podcast
Questions and Answers
What is the purpose of coating some gaskets with a graphite paste?
Why is it important to slowly dry out new refractory before raising the furnace to normal operating temperature?
What is the purpose of performing a boil out on a new boiler?
When should safety valves be tested for operation on a new or restarted boiler?
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Why is it recommended to perform a dry run of combustion controls before placing the fuel and air systems into service?
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What should be done when testing safety valves as the steam pressure rises in a new or restarted boiler?
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What is the purpose of inspecting the boiler internally before closing it up?
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Why is it important to check off all tools that have been taken into a water tube of a watertube boiler?
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What should be done with work permits before proceeding to close up the boiler?
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What must be checked before closing up the boiler after furnace refractory work has been done?
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Why is it necessary to ensure that all lockout tags have been returned before closing up the boiler?
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What is the purpose of performing operational testing on all safety and control devices when starting a boiler plant after a major outage?
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What should be at minimum position during the low fire start period?
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What occurs if a safety shutdown and lockout occurs within 4 seconds during the pilot trial for ignition period?
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What should be observed after successfully completing two cycles of testing and restarting the boiler following the post-purge period?
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When should the low water cut-off test be run?
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What does the high steam pressure cut-out test prove?
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What is the purpose of the low water flow cut-off test for forced-flow hot water boilers?
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What does the combustion air proving switch test for mechanical draft boilers prove?
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What do flame detection devices monitor for in the boiler furnace?
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