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A cylinder, subjected to internal pressure Pi only, is made of cast iron having ultimate tensile strengths in tension and compression of σu = 350 MPa and σ'u = 630 MPa, respectively. The inner and outer radii are r and 3r. Determine the allowable value of Pi using (a) the maximum principal stress theory and (b) the Coulomb-Mohr theory.
the cooling water flow rate to the condensers of a big coal-fired power plant is 8460 kgs. the water enters the
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a cylinder of metal that is originally 100mm tall and 50mm in diameter must be open die forged to a height if 50mm. the
If the maximum temperature in the cycle is not to exceed 2200 K, determine the thermal efficiency and the mean effective pressure.
Also, compare with the efficiency of an Otto cycle operating with the same maximum pressure.
a dump truck is shown in the figure. the loaded container has a mass of 8000 kg and may be modelled as a solid
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the magnesium alloy modulus of elasticity e 44.7 gpa coefficient of thermal expansion 2610-6oc tube ab is capped with
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