The force P=10 kips is applied to a bar made of steel F29000ksi, α=22(10-6)1/oF). The bar has cross- sectional areas of 1 in2 in region AB and 4 in2 in region BC. A variation in temperature AT 60°F is applied to the bar. Determine normal stress on a generic section between A and B. Make a 3D drawing showing the normal stress distribution on a generic cross section between A and B.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

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