Acardboard box supplier must deliver 3,000 size large boxes per week to keep its largest customer happy. the process for manufacturing the box is a four-step serial process and because they use recycled material, material quality is sometimes compromised resulting in scrap at each step. the scrap (defect) rates for the four respective steps are as follows: d1=0.07, d2=0.04, d3=0.05, and d4=0.02. how many boxes need to be started each month to meet the desired demand.

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.

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?