The moist weight of 0.1 ft3 of soil is 12.2 lb. If the moisture content is 12% and the Specific gravity of the soil solids is 2.72, find the following: a) Moist unit weight b) Dry unit weight c) Void ratio d) Porosity e) Degree of Saturation f) Volume occupied by water.

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 proportional limit is always greater than the yield strength for a material. a)-trune b)- false

Heat transfer by is the fastest mode of heat transfer that requires no intervening medium. a)-conduction b)-convection c)-radiation d)-conduction and convection