Calculate circumferential prestress if loss ratio 0.75, thickness is 1 – McqOptions

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1.	Calculate circumferential prestress if loss ratio 0.75, thickness is 120mm, working pressure is 1n/mm² and Nd is given as 840n/mm?
A.	10.75n/mm<sup>2</sup>
B.	14.8n/mm<sup>2</sup>
C.	12.6n/mm<sup>2</sup>
D.	10.65n/mm<sup>2</sup>
Answer» B. 14.8n/mm<sup>2</sup>

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