An insulated steam pipe of 160 mm inner diameter and 180 mm outer diameter is covered with insulation of 40 mm thickness and carries steam at 200C. K(pipe) = 29 W/mC, K(insulation) = 0.23 W/mC h (steam) = 11.6 W/m C, h(air) = 23.2 W/m C - If the temp of the air surrounding the pipe is 25C, the the rate of heat loss to the surroundings from the pipe of 5 m length is (a) 1.823 kW (c) 2.36 kW (b) 182.3 kW (d) 236 kW The temperature at the interface of pipe and insulation is (a) 175.4C (c) 119C (b) 137.2C (d) 44.3C