Question 85Steam Plants - Assistant Engineer70% to pass
When raising steam on a boiler, the superheater drains should _______________.
AI Explanation
The correct answer is D) remain open or partially open until steam blows through the lines, and then the valves should be closed.
When raising steam on a boiler, it is important to properly manage the superheater drains to prevent damage to the system. Keeping the superheater drains open or partially open until steam blows through the lines allows any condensate to be removed, preventing water hammer or other issues that could occur if the drains were closed too soon. Once steam is flowing through the system, the drains can then be closed to maintain pressure and efficiency.
The other options are incorrect because they do not properly address the need to remove condensate before closing the drains, or they suggest closing the drains at inappropriate times during the steam-raising process.
Related Questions
#83 A malfunction in the DC heater is indicated by _______________.#84 The concentration of total dissolved solids in the boiler water can increase as a result of _______________.#86 When raising steam on an idle boiler and the steam pressure has risen to about 5 pounds more than the pressure of the boiler already on the line, you can _______________.#87 After steam has been raised and a boiler is being placed on the line, the superheater vent can be closed when _______________.#88 If a boiler is brought on the line with its steam pressure much higher than that of the boiler already on the line, there is danger of _______________.