The efficiency of a modern boiler using coal and heat recovery equipment is about_____________?
Correct answer: D. 85 to 90%
- A. 25 to 30%
- B. 40 to 50%
- C. 65 to 70%
- D. 85 to 90%
Explanation
With coal combustion plus heat-recovery equipment such as economisers, air preheaters and superheaters, modern boiler efficiency is typically about 85 to 90 percent. The lower ranges are more representative of overall plant efficiency, not boiler efficiency alone.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Power Systems
334 free Power Systems MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Power Systems questions
Load center in a power station is___________?
Steam pressure in a steam power station, which is usually kept now-a-days is of the order of____________?
Economisers improve boiler efficiency by__________?
The maximum length of a screw conveyer is about___________?
Belt conveyer can be used to transport coal at inclinations upto____________?
Steam turbines commonly used in steam power station are__________?