True centrifugal casting is performed horizontally to make copper tube sections. the tubes have a length = 1.0 m, diameter = 0.25 m, and wall thickness = 15 mm. a.) if the rotational speed of the pipe = 700 rev/min, determine the g-factor on the molten metal. b.) is the rotational speed sufficient to avoid "rain"? c.) what volume of molten metal must be poured into the mold to make the casting if solidification shrinkage and solid thermal contraction for copper are = 4.5% and 7.5%, respectively (both are volumetric contractions).

Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.

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

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options