Heat Transfer A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. Either B or C, depends on the mass of the body 10 >10 Either B or C, depends on the mass of the body 10 >10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In forced convection, the heat transfer depends on none of the listed here mainly Gr Re, Pr Re, Gr none of the listed here mainly Gr Re, Pr Re, Gr ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 'Fouling factor' used in the design of a multipass shell and tube heat exchanger is a Non-dimensional factor Factor of safety None of these Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient Non-dimensional factor Factor of safety None of these Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the Less corrosion problems Low pressure drop High heat transfer co-efficient Flexibility possible in the baffle arrangement Less corrosion problems Low pressure drop High heat transfer co-efficient Flexibility possible in the baffle arrangement ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when CPA > CPB KA>2 kB KA < 0.5kB CPA < CPB CPA > CPB KA>2 kB KA < 0.5kB CPA < CPB ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is correct ? Resistance = Driving force x Rate Rate = Driving force x Resistance Driving force = Rate x Resistance Rate = Resistance/Driving force Resistance = Driving force x Rate Rate = Driving force x Resistance Driving force = Rate x Resistance Rate = Resistance/Driving force ANSWER DOWNLOAD EXAMIANS APP
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