Question 102Steam Plants - QMED
70% to passThe main feed check valve functions to _______________.
Areduce feed pump discharge pressure loading
Bprevent backflow of water from the boiler in the event of a feed pump failure
Ccheck pressure pulsations in the feed line
Dprovide feed pump positive discharge head
AI Explanation
The correct answer is B) prevent backflow of water from the boiler in the event of a feed pump failure. The main feed check valve is designed to prevent the backflow of water from the boiler to the feed pump in case of a feed pump failure. This is an important safety feature to prevent damage to the boiler and ensure a reliable supply of feed water. The other answer choices do not accurately describe the primary function of the main feed check valve.
Related Questions
Q38:According to the illustrated lubricating oil system diagram, which of the labele... Q130:An excess pressure governor is a special type of control device which would norm... Q55:In terms of the diluting effect of excessive excess air, when viewing the flame ... Q142:The maximum temperature rise of oil passing through any reduction gear set, or ... Q192:When performing a periodic gauge glass blow down to insure that the glass is fre...
Ready to test your knowledge?
Take a Steam Plants - QMED Practice ExamOfficial Resources