Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of__________________?
Correct answer: C. Both A. and B.
- A. Low emissivity
- B. High thermal conductivity
- C. Both A. and B.
- D. Neither A. nor B.
Explanation
High thermal conductivity allows heat to penetrate the stock rapidly, while low emissivity reduces the importance of radiative surface heating; consequently, stock thickness has little effect on fuel economy under these conditions. Poor conductivity would make thicker stock require substantially longer heating.
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
The resistance furnace produces heat by the__________________?
Dampers are located__________________?
Regenerators as compared to recuperators for the same duty_________________?
An example of indirectly heated furnace is the_________________?
Neutral atmosphere is maintained in a/an ____________ furnace?
The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about ____________ percent?