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A cold storage compartment has 369 m- of surface area. This area is covered with 60 mm thickness of insulating material, which has a co-efficient of thermal conductivity of 0.58 J/metre /sec/degree C. Calculate the quantity of heat leaking through the insulation per hour when the outside and inside temperatures of the material are 32 degrees C and -38 degrees C respectively. The quality of heat = MJ NumberA schedule 80 pipe has an OD of 219.08 mm, is 10 m long, and is fixed solidly at both ends. It was installed so that there was no stress on the pipe when it was at working temperature. It carries hot oil at a temperature of 150 degrees C. What is the tensile load on pipe when it cools to 25 degrees C? Coefficient of expansion = 12 x 10 9. E = 210 GPa Answer = KN NumberIf a mild steel cube of side 40 mm is heated from 25 degrees C to 50 degrees C, what will the increase in volume be? 192 cu mm 64 000 cu mm 57.6 cu mm 5.76 cu mm 19.2 cu mm