Heat and Mass Transfer LMTD in case of counter flow heat exchanger as compared to parallel flow heat exchanger is Lower Higher Depends on the area of heat exchanger Same Lower Higher Depends on the area of heat exchanger Same ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is smallest in Liquids Solids Gases None of these Liquids Solids Gases None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of wood depends on Density Temperature All of these Moisture Density Temperature All of these Moisture ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Fourier's law of heat conduction is valid for Two dimensional cases only One dimensional cases only Regular surfaces having non-uniform temperature gradients Three dimensional cases only Two dimensional cases only One dimensional cases only Regular surfaces having non-uniform temperature gradients Three dimensional cases only ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following would lead to a reduction in thermal resistance? In convection, stirring of the fluid and cleaning the heating surface. In radiation, increasing the temperature and reducing the emissivity. In conduction, reduction in the thickness of the material and an increase in thermal conductivity. All of these In convection, stirring of the fluid and cleaning the heating surface. In radiation, increasing the temperature and reducing the emissivity. In conduction, reduction in the thickness of the material and an increase in thermal conductivity. All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The automobile radiator is a heat exchanger of Regenerator type Cross flow type Parallel flow type Counter flow type Regenerator type Cross flow type Parallel flow type Counter flow type ANSWER DOWNLOAD EXAMIANS APP
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