The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about ____________ percent?
Correct answer: B. 40
- A. 15
- B. 40
- C. 70
- D. 85
Explanation
A walking-beam slab-reheating furnace typically has a thermal efficiency near 40 percent, with the remainder lost through exhaust gases, furnace walls, openings, and cooling systems. Values such as 70 or 85 percent are generally too high for this furnace type without exceptional heat recovery.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Heat Transfer Operations
645 free Heat Transfer Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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 Heat Transfer Operations questions
Neutral atmosphere is maintained in a/an ____________ furnace?
An example of indirectly heated furnace is the_________________?
Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of__________________?
In low or standard frequency induction furnace, heat is produced by the_______________________?
In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by__________________?
Thermal efficiency of furnaces can be improved by____________________?