4. The maximum dry density of a proposed borrow soil was found to be 2.2 Mg/m3, and the optimum water content was 13%. The borrow soil has a natural water content of 10%, a degree of saturation of 50%, and a specific gravity of solids of 2.63. Specifications require the borrow soil to be compacted to 95% of the maximum dry density.(a) How many cubic meters of borrow soil will be required to make one cubic meter of compacted fill at the specified dry density?

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.

The higher the astm grain size number, the finer the gran is. a)-true b)-false

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature