Question 150Steam Plants - QMED
70% to passWhen 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 _______________.
Aincrease the boiler firing rate
Bclose the superheater vent
Cclose the air cock
Dput the boiler on the line
AI Explanation
The correct answer is D) put the boiler on the line. 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, the proper procedure is to put the boiler on the line. This allows the pressure differential to be equalized, preventing a sudden surge of steam that could damage the system. The other options, such as increasing the firing rate (A) or closing the superheater vent (B) or air cock (C), are not the appropriate actions in this scenario, as they could further increase the pressure differential and lead to potentially dangerous consequences.
Related Questions
Q91:Fuel oil settling tanks are used to _______________. Q57:The leakage of air into the pump casing by way of the packing gland of a condens... Q119:What is the purpose of the items labeled "moving blades" located on the illustra... Q17:For the gland seal regulator shown in the illustration, an increase in gland sea... Q176:During the routine inspection of an operating centrifugal lube oil purifier, you...
Ready to test your knowledge?
Take a Steam Plants - QMED Practice ExamOfficial Resources