Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid for fluids in tubulent flow when Grashhoff number is very important none of the listed here for fluids in laminar flow for fluids in tubulent flow when Grashhoff number is very important none of the listed here for fluids in laminar flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The advantage of backward feed multiple effect evaporators over forward feed units is that Heat sensitive material can be handled There is no additional cost of pumping Equal heat transfer co-efficients exist in various effects Most concentrated liquid is at highest temperature Heat sensitive material can be handled There is no additional cost of pumping Equal heat transfer co-efficients exist in various effects Most concentrated liquid is at highest temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 Exit fluid temperature < wall temperature Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 Exit fluid temperature < wall temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Rate of crystallisation does not depend upon the Turbulence within the solution Number and active surface area of the crystals Extent of supersaturation None of these Turbulence within the solution Number and active surface area of the crystals Extent of supersaturation None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Value of Prandtl number for water ranges from L to 2 1000 to 2000 5 to 10 100 to 500 L to 2 1000 to 2000 5 to 10 100 to 500 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used To reduce the pressure drop To obtain higher heat transfer co-efficient and shorter tube Because of simplicity of fabrication For low heat load To reduce the pressure drop To obtain higher heat transfer co-efficient and shorter tube Because of simplicity of fabrication For low heat load ANSWER DOWNLOAD EXAMIANS APP
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