The crankcase of an automobile is approximately 30in. long, 12 in. wide, and 4 in deep. assuming that the surface temperature of the crankcase is 160 °f, estimate the rate of heat flow from the crankcase to atmospheric air at 40 °f at a road peed of 60 mph. neglect radiation and use for the front and rear surfaces the same average convective heat transfer coefficient as for the bottom and sides.

What precautions should you take to prevent injuries when dealing with heavy loads?

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.

Fluids at rest possess no flow energy. a)- true b)- false