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For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for diaofthe tank in question), the thickness of the courses of shell | |
A. | decreases upwards. [Correct Answer] |
B. | increases upwards. [Wrong Answer] |
C. | remains same throughout. [Wrong Answer] |
D. | may decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell. [Wrong Answer] |