15 Questions
What is the purpose of inspecting the boiler internally before closing it up?
To ensure it is free from scale, oil, tools, debris, and other foreign material
Why is it important to check off all tools removed from a watertube boiler's water side?
To ensure that no foreign objects have fallen into the water tube
What should be used to prevent gaskets from sticking to the metal when closing up the boiler?
Graphite paste
What must be performed by the Power Engineer when starting a boiler plant for the first time or after a major outage?
Operational testing on all safety and control devices
What should be checked to ensure they are properly aligned and move freely before closing up the boiler?
Soot blowers
What should be observed during the pilot trial ignition period to confirm correct sequence?
Ignition transformer on, and spark is robust
What should be tested to prove that the boiler will trip upon reaching the high steam pressure set point?
High steam pressure cut-out
Which device is tested to prove the boiler will trip in a low water condition?
Low water flow cut-off switch
Which test proves that the boiler will trip upon loss of atomizing air or steam for fuel oil fired boilers?
Low atomizing media pressure cut-off switch
What is the purpose of the post-purge period after successfully completing the ignition sequence?
To observe the main flame establishment
What is the purpose of slowly drying out new refractory in a furnace?
To avoid internal pressure and damage in the refractory
What is the purpose of boiling out a new boiler?
To remove greases, welding debris, dirt, and oil from construction
When is it recommended to test the safety valves on a boiler?
Before the boiler is initially fired or after an extended outage
What should be done before placing the fuel and air systems into service when testing combustion controls?
Give the combustion controls a dry run
When should the dry run procedure be performed for a mechanical draft boiler equipped with both pilot and main burners?
When actually performing the dry run
This quiz covers the major tasks that a Power Engineer must perform when starting a boiler plant for the first time or after a major outage. It includes precautions, operational testing on safety and control devices, and the inspection of the boiler both internally and externally before closing it up.
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