Question

Question 3 10 Marks During laboratory testing of a thin-wall pressure vessel, the cylinder diameter and thickness were at 10 different locations: the resulting data were as follows If the pressure inside the vessel is measured to be P - 1 mPa (mega Pascal) with an estimated uncertainty of up-+ 6 kPa (kilo Pascal, for 95% confidence interval, the tangential or hoop stress in the vessel is given by ơe-- 3.1 Compute the uncertainty in the vessel diameter (2 marks) Su-6 3.2 Compute the uncertainty in the vessel thickness ue (2 marks) 3.3 Regardless of the results obtained in 3.1 and 3.2, take up determine the tangential stress ơe (2 marks) 5.6 mm and ue-93 mm mPa ag 3.4 Regardless of the results obtained in 3.3, take ơo- uncertainty in tangential stress d (4 marks) 125e6 Pa determine the Pa,

Plz answer 3.3 and 3.4

Answer 1

ラ"6. d 5,6 mm each ipt- 019 4x lo\ 2444- 6·07 least- 994 kfa 2-556m m 244.4 mn Tating maxim value of into 00.6 Xlo X2 55 tl t- 5.G0.93 2-50