Heat Transfer With the increase of temperature, the Col-burn jH factor Decreases Remains unchanged May increase or decrease ; depending on temperature Increases Decreases Remains unchanged May increase or decrease ; depending on temperature Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used 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 To reduce the pressure drop To obtain higher heat transfer co-efficient and shorter tube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called Radiation Natural convection Conduction Forced convection Radiation Natural convection Conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. Vacuum High pressure None of these Backward feed Vacuum High pressure None of these Backward feed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Tubes are held between top and bottom tube sheets in Calenderia type evaporator by keeping Both the tube sheets fixed The top tube sheet floating and bottom tube sheet fixed The top tube sheet fixed and the bottom tube-sheet floating Both the tube sheets floating Both the tube sheets fixed The top tube sheet floating and bottom tube sheet fixed The top tube sheet fixed and the bottom tube-sheet floating Both the tube sheets floating ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature) Δt Δt² √Δt Δt³ Δt Δt² √Δt Δt³ ANSWER DOWNLOAD EXAMIANS APP
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