Question

The pressure gage in an air cylinder reads 1,680 kPa. The cylinder is constructed of a 12-mm thick rolled-steel plate with an internal diameter of 700 mm. The tangential (hoop) stress (MPa) inside the tank is most nearly: O a) 25 MPa ob) 50 MPa O c) 77 MPa od) 100 MPa

Question 2

Answer 1

solution 1680 lepa = 1680x10²pa Q niven, Pressure = 1680 x 103 1680 x103 N. 10% mm² m2 1.68 MPa a A = 12 mm, d=700mm. Hoop stress = Pd at 1.68X700 11 2812 Hoop stress 49 mpa Ans Hoop stres a sompa

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