High Pressure Boiler: Chapter 12- Steam Boiler
Operation CORRECT 100%
When taking over a shift, the boiler operator must first check the ___. - ANSWER water level on all
boilers
The low-water fuel cutoff can be tested by blowing down the low-water fuel cutoff or by ___. - ANSWER
securing the feedwater and allowing the water level in the boiler to drop
In order to prevent uneven expansion of the boiler on cold startup, the boiler must be ___. - ANSWER
warmed up slowly
During start up, the boiler vent should remain open until a pressure of ___ is reached. - ANSWER 15 psi
A safety valve can be manually tested when the ___. - ANSWER pressure is at least 75% of MAWP
Boilers equipped with a superheater must be protected during warm-up by ___. - ANSWER keeping the
superheater drain valve open until the boiler is cut in on-line
Superheaters are prevented from overheating by circulation of ___. - ANSWER steam
To ensure high heat transfer rates, ___ should be removed from boiler heating surfaces - ANSWER soot
During boiler shutdown, the ___ should be opened when the steam pressure in the boiler has dropped
down to 10 psi to 15 psi. - ANSWER boiler vent
Plant emergency procedures should be established by the ___. - ANSWER chief engineer
A low-water fuel cutoff ___. - ANSWER shuts off the fuel supply
Operation CORRECT 100%
When taking over a shift, the boiler operator must first check the ___. - ANSWER water level on all
boilers
The low-water fuel cutoff can be tested by blowing down the low-water fuel cutoff or by ___. - ANSWER
securing the feedwater and allowing the water level in the boiler to drop
In order to prevent uneven expansion of the boiler on cold startup, the boiler must be ___. - ANSWER
warmed up slowly
During start up, the boiler vent should remain open until a pressure of ___ is reached. - ANSWER 15 psi
A safety valve can be manually tested when the ___. - ANSWER pressure is at least 75% of MAWP
Boilers equipped with a superheater must be protected during warm-up by ___. - ANSWER keeping the
superheater drain valve open until the boiler is cut in on-line
Superheaters are prevented from overheating by circulation of ___. - ANSWER steam
To ensure high heat transfer rates, ___ should be removed from boiler heating surfaces - ANSWER soot
During boiler shutdown, the ___ should be opened when the steam pressure in the boiler has dropped
down to 10 psi to 15 psi. - ANSWER boiler vent
Plant emergency procedures should be established by the ___. - ANSWER chief engineer
A low-water fuel cutoff ___. - ANSWER shuts off the fuel supply
