Carbon tetrachloride flows with a velocity of 0.30 m/s through a 30-mm-diameter tube. a model of this system is to be developed using standard air as the model fluid. the air velocity is to be 2 m/s. what tube diameter is required for the model if dynamic similarity is to be maintained between model and prototype?

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 drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above