Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low Grashoff number viscosity thermal conductivity Prandtl number Grashoff number viscosity thermal conductivity Prandtl number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the total emissivity of conductors Decreases Decreases linearly Increases Remains same Decreases Decreases linearly Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Liquid density Liquid viscosity Hot surface temperature Interfacial tension Liquid density Liquid viscosity Hot surface temperature Interfacial tension ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the temperature gradient at the wall to None of these Temperature difference Heat flux That across the entire pipe None of these Temperature difference Heat flux That across the entire pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, floating head is used for Low pressure drop Less corrosion of tubes Large temperature differentials High heat transfer co-efficient Low pressure drop Less corrosion of tubes Large temperature differentials High heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The actual temperature drop across the heating surface in an evaporator depends on the All of these Feed Depth of liquid over heating surface Pressure difference between steam chest and vapour space All of these Feed Depth of liquid over heating surface Pressure difference between steam chest and vapour space ANSWER DOWNLOAD EXAMIANS APP
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