Apipeline with a 45o reducing bend reducing the diameter from 500 mm to 300 mm. the flow rate in the pipe is 0.5 m/s and the pressure at inlet of the bend is 10 n/cm2 . assume that the elevation difference between the inlet and outlet of the bend is small, determine the force exerted by water on the bend. water density is 1000 kg/m3.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false