The three tools described below are part of a university's machine shop. Each piece of equipment is a balanced three-phase load rated at 220. Calculate the magnitude of the line current suplying these three tools and the power factor of the combined load.• Drill press: 10.2 kVA at 0.87 pf lag. • Lathe: 4.2 kW at 0.91 pf lag. • Band saw: line current 36.8 A(rms), 7.25 kVAR.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?