Flue passing hot exhaust gases has a square cross section, 400 mm to a side. The walls are constructed of refractory brick 200 mm thick with a thermal conductivity of 1.5 W/mK. Calculate the rate of heat loss from the flue per unit length when the interior and exterior surfaces are maintained at 350 and 25oC, respectively. Use a grid spacing of 100 mm

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

What is a monomer? how do they form a ploymer from the view point of chemical bonding?