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Note:- You can add tough questions into your favourite list for second revision. |
Generally, elliptical dished heads | |
A. | are manufactured on 2:1 ratio of major to minor axis and is recommended to be used for pressure vessels operating above a pressure of 1.5 MN/m2 . [Wrong Answer] |
B. | resist half the pressure rating compared to hemi spherical head provided on the cylindrical shell of the same thickness and diameter. [Wrong Answer] |
C. | are approximately as strong as seamless cylindrical shell having the corresponding I.D and O.D. [Wrong Answer] |
D. | all (a), (b) and (c) [Correct Answer] |