Heat Transfer In counter flow compared to parallel flow, Less surface area is required for a given heat transfer rate Both A and B LMTD is greater More surface area is required for a given heat transfer rate Less surface area is required for a given heat transfer rate Both A and B LMTD is greater More surface area is required for a given heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl and Reynold's analogies are identical for Prandtl number value of 0.5 5 1 0.5 5 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for Polished bodies only Black painted bodies only A black body All bodies Polished bodies only Black painted bodies only A black body All bodies ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which type of heat exchanger is preferred for heavy heat loads ? Double pipe Series and parallel set of shell and tube None of the listed here Plate fine Double pipe Series and parallel set of shell and tube None of the listed here Plate fine ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Unsteady state heat conduction occurs, when Temperature distribution is independent of time Three dimensional heat flow is concerned Heat flows in one direction only Temperature distribution is dependent on time Temperature distribution is independent of time Three dimensional heat flow is concerned Heat flows in one direction only Temperature distribution is dependent on time ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of a gas Decreases Increases Remains same May increase or decrease depending on the type of gas Decreases Increases Remains same May increase or decrease depending on the type of gas ANSWER DOWNLOAD EXAMIANS APP
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