Too much of excess air in combustion results in high___________________?
Correct answer: A. All A., B. and C.
- A. All A., B. and C.
- B. Stack gas temperature
- C. Percentage of oxygen in flue gases
- D. Fuel consumption for the same heat load
Explanation
Excess air carries additional nitrogen and oxygen through the furnace, increasing fuel use for a fixed heat load, residual oxygen, and usually stack-gas heat loss and temperature. Therefore, all three listed effects are associated with excessive air.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical 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 Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Coking time in narrow by-product coke ovens is around ______________ hours?
Which of the following is a primary fuel ?
Hard coke is manufactured from___________________?
Washing of coal is done to reduce the_________________?
Efficient burning of anthracite coal requires______________________?
Water gas constitutes mainly of __________________?