Heat Transfer The sum of reflectivity and absorptivity for an opaque body is equal to 2 1 0.5 2 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film condensation is promoted on a/an __________ surface. coated dirty clean & smooth oily coated dirty clean & smooth oily ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vent pipes are provided in a condenser to Facilitate easy cleaning of tubes None of these Remove non-condensable gases Purge the condenser Facilitate easy cleaning of tubes None of these Remove non-condensable gases Purge the condenser 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 KA>2 kB CPA > CPB CPA < CPB KA < 0.5kB KA>2 kB CPA > CPB CPA < CPB KA < 0.5kB ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A perfect black body is a perfect __________ of radiation emitter none of the listed here absorber Both emitter & absorber emitter none of the listed here absorber Both emitter & absorber ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum heat transfer rate is obtained in __________ flow. Transition region Laminar Creeping Turbulent Transition region Laminar Creeping Turbulent ANSWER DOWNLOAD EXAMIANS APP
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