Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? None of these When fluid flows past a smooth surface At high fluid velocity At low velocity None of these When fluid flows past a smooth surface At high fluid velocity At low velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as (D)-1.8 (D)-0.2 (D)1.8 (D)0.2 (D)-1.8 (D)-0.2 (D)1.8 (D)0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam traps are provided in steam carrying pipelines to none of the listed here release excess steam pressure by bleeding steam. remove condensate and inert gases condense steam none of the listed here release excess steam pressure by bleeding steam. remove condensate and inert gases condense steam ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used For low heat load Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop For low heat load Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is concerned with both heat and mass transfer ? Nusselt number Lewis relationship Froude number Kutateladze number Nusselt number Lewis relationship Froude number Kutateladze number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, 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 Less surface area is required for a given heat transfer rate Both A and B ANSWER DOWNLOAD EXAMIANS APP
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