To resist spalling tendency, a refractory should have________________?
Correct answer: D. All A., B. and C.
- A. Greater diffusivity
- B. Low specific heat
- C. Low thermal co-efficient of expansion
- D. All A., B. and C.
Explanation
Spalling is reduced when temperature gradients and thermal stresses are small, which is promoted by high thermal diffusivity, low specific heat, and a low thermal expansion coefficient. Therefore all three properties improve resistance to spalling.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Plant Design and Economics
803 free Plant Design and Economics 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 Plant Design and Economics questions
Cermets are____________________?
Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory_________________?
Hot face insulating linings of high purity alumina fused mullite are used, where_________________?
The main raw material for manufacture of silicon carbide refractories is_________________?
Alumina-graphite bricks are used for lining the ____________________?
Porosity of silica bricks varies from ______________ percent?