Heat Transfer In counter flow compared to parallel flow, Less surface area is required for a given heat transfer rate LMTD is greater Both A and B More surface area is required for a given heat transfer rate Less surface area is required for a given heat transfer rate LMTD is greater Both A and B More surface area is required for a given heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is not used as a medium for high temperature heating ? liquid metal mercury dowtherm None of the listed here liquid metal mercury dowtherm None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? When fluid flows past a smooth surface None of these At low velocity At high fluid velocity When fluid flows past a smooth surface None of these At low velocity At high fluid velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Analogy between mass and heat transfer is not applicable in case of Both B and C Same velocity profile or equal eddy diffusivities Viscous heating or chemical reaction Thermal or pressure mass diffusion Both B and C Same velocity profile or equal eddy diffusivities Viscous heating or chemical reaction Thermal or pressure mass diffusion ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Minimum resistance presents in the series Average of all resistances Maximum resistance in the series Sum of all resistances Minimum resistance presents in the series Average of all resistances Maximum resistance in the series Sum of all resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of floating head in a heat exchanger is to Provide support for tubes Facilitate its lengthening, if needed Decrease the pressure drop Avoid buckling of tubes Provide support for tubes Facilitate its lengthening, if needed Decrease the pressure drop Avoid buckling of tubes ANSWER DOWNLOAD EXAMIANS APP
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