The thermal stress in a metallic bar does not depend upon the_____________________?
Correct answer: B. Cross-sectional area
- A. Changes in temperature
- B. Cross-sectional area
- C. Both A. and B.
- D. Neither A. nor B.
Explanation
For a fully restrained bar, thermal stress is σ = EαΔT, so it depends on the temperature change and material properties but not on cross-sectional area. Area affects the total force, not the stress.
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
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as___________________?
Poisson's ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson's ratio for structural and pressure vessel steel may be taken as ____________________?
Lug support is meant for supporting _______________ vessels?
The ratio of linear stress to linear strain is termed as the ____________________?
Accidents in chemical plants are mostly due to___________________?
The buckling tendency of compression members is always in the direction of the _____________________?