Theresidential drinking waterin a small town with a population of 50,000 has been detected tocontains 0.5 ppb tetrachloroethylene. There is also a waste incineration plant in the town that emits 0.001ppb dioxin. Long-term health monitoring of the town yieldedthe following data: With Disease Without DiseaseExposed 72 185Not Exposed 34 560What arethe CDIvalues of the two contaminants

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way