Question 80Steam Plants - 1st Asst/Chief
70% to passThe boiler economizer provides additional heat to the _______________.
Asteam leaving the superheater
Bair supply entering the furnace
Cfuel oil entering the furnace
Dfeed water entering the boiler
AI Explanation
The correct answer is D) feed water entering the boiler. The boiler economizer is a heat exchanger that extracts heat from the boiler's exhaust gases and transfers it to the feed water entering the boiler. This additional heat from the economizer helps to increase the temperature of the feed water, reducing the amount of energy required to convert the feed water into steam. The other options are incorrect because they do not accurately describe the function of the boiler economizer. The economizer does not provide additional heat to the steam leaving the superheater (A), the air supply entering the furnace (B), or the fuel oil entering the furnace (C).
Related Questions
Q329:Which of the following types of bearings are used as line shaft bearings? Q233:Excess free oxygen in the boiler feed water can be the result of _______________... Q303:The most practical method of determining the condition of a shaft bearing while ... Q404:When the flow of oil admitted to a disk-type centrifugal purifier is in excess o... Q395:The adjustable spherically seated self-aligning bearing housings used in main t...
Ready to test your knowledge?
Take a Steam Plants - 1st Asst/Chief Practice ExamOfficial Resources