Compression is maintained during combustion because on top of the motor is a

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

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)

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false