Aconsolidation test on a saturated clay soil gave the following results: cc = 0.2, cr = 0.04, and ocr = 4.5. the existing vertical effective stress in the field is 120psf. a building foundation will increase the vertical total stress at the center of the clay by 80psf. the thickness of the clay layer is 1.5â•›m and its water content is 36%. (a) calculate the primary consolidation settlement. (b) what would be the difference in settlement if ocr were 1.5 instead of 4.5?

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.

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

Starting wih an energy balance on a rectangular volume element, derive the one- dimensional transient heat conduction equation for a plane wall with constant thermal conductivity and no heat generation.