Abritle material made of astm grade 30 cast iron has ultimate strength in tension of 31 kpsi and altimate strength in compression of 109 kpsi and undergoes the following plane of stress te 20 lepst and ry10 kpsi (cw). a) using the 3d mohr's circle, find all three principal normal stresses. b) using the brittle-coulomb-mohr theory and modified-mohr theory. ind the factors of safety for the given plane of stress state.

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)