If a river with a seasonal low flow of 200 cfs has a water quality standard for phosphate of 0.02 mg/L as P. find the TMDL for P. Diffuse agricultural runoff contributes 10 lbs of P per day. If the margin of safety is set at 4 lbs of P per day, what would be the maximum waste-load allocation of P from a wastewater treatment plant discharging to the river? Ignore all other point and nonpoint sources.

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.

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