Nanocrystalline materials have grain sizes in the range 1-100 nm. If the contribution of grain boundary strengthening in an alloy with grains of 100 nm is 20 MPa, what would it be if the grain size were reduced to 10 nm

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.

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

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false