2. A concrete gravity dam has the following dimensions: Max water level = 305 m Bed level of river = 225 m, crest level = 309 m, D/S face slope starts at 300 m, D/S Slope= 2:3, C/L of drainage galleries at 8m d/s of u/s face, Uplift pressures: at Heal = 100 %, at Toe = 0 % at drainage gallery = 50 %. Assume density of concrete=2400kg/m3, no tail water, consider only self weight, hydrostatic and uplift pressure. Check the stability of dam for 1) rotation and overturning, 2) Translation and sliding, 3) overstress and material failure.

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.

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk