Consider austenite containing 0.42 wt% c cooled to below 727 °c, (a) what is the proeutectoid phase? (b) what is the weight fraction each of total ferrite and cementite that form? (c) what is the weight fraction each of pearlite and the proeutectoid phase that form? (d) if the total weight of austenite that transforms is 12 kg, compute the weight of ferrite contained in the pearlite structure alone. (e) sketch and label the resulting microstructure.

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.

Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery