A britle material has the properties Sut = 30 kpsi and Suc = 90 kpsi. Using the coulomb mohr and modified mohr theories , Determine the factor or safety for the following states of plane stresses. a) σx = 25 kpsi σy =15 kpsib) σx = 15 kpsi σy = - 15 kpsic) σx = 20kpsi τxy= -10 kpsid) σx = - 15 kpsi σy =10 kpsi τxy= -15 kpsie) σx = - 20 kpsi σy =- 20 kpsi τxy= -15 kpsi

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.