IRRIGATION ENGINEERING. On each day, 0.6 hectare of corn and 1.0 hectare of grass are to be irrigated .Readily available water for corn is 8cm and readily available water for grass is 15 cm . Corn field has 26 furrows each discharges 19 lit/min and grass field has 70 furrows and each discharges 27 lit/min Assume that water is uniformly applied over field . Find the application efficiency for
a. Corn field
b. grass field
c. Entire field

A3-mm-thick panel of aluminum alloy (k 177 w/m-k, c 875 j/kg-k and ? = 2770 kg/m) is finished on both sides with an epoxy coating that must be cured at or above t,-150°c for at least 5 min. the production line for the curing operation involves two steps: (1) heating in a large oven with air at ts,0-175°c and a convection coefficient of h, 40 w/m2. k, and (2) cooling in a large chamber with air at 25°c and a con- vection coefficient of he 10 w/m2.k. the heating portion of the process is conducted over a time interval te which exceeds the ime required to reach 150°c by 5 min (h = r + 300 s). the coating has an emissivity of ? = 0.8, and the temperatures of the oven and chamber walls are 175 and 25°c, respectively. if the panel is placed in the oven at an initial temperature of 25°c and removed from the chamber at a safe-to-touch tempera ture of 37°c, what is the total elapsed time for the two-step curing operation?