Aconstant-head test was conducted on a sample of soil 150 mm long and 1963 mm² in cross- sectional area. the quantity of water collected was 5cm’ in 20 seconds under a head difference of 220 mm. the average temperature was 24°c. (a) calculate the hydraulic conductivity. (b) if the porosity of the sand is 55%, calculate the average velocity and the seepage velocity when the test was conducted.

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

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.