Afour story office building ha interior columns that are spaced
30ft apart in two perpendicular directions. if the flat-roof
loadingis estimated to be 30 lb/ft2 , determine the
reducedlive load supported by a typical interior column at ground
level.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way