Heat Transfer Maximum heat transfer rate is achieved in __________ flow. Counter-current Co-current Turbulent Laminar Counter-current Co-current Turbulent Laminar ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used In high range of temperature differences In low range of temperature differences Because of its low cost To prevent corrosion of the tube bundles In high range of temperature differences In low range of temperature differences Because of its low cost To prevent corrosion of the tube bundles ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Increases Increases exponentially Remains unchanged Decreases Increases Increases exponentially Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) Independent of 't' ∝ t ∝ 1/t ∝ √t Independent of 't' ∝ t ∝ 1/t ∝ √t ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low Prandtl number Grashoff number viscosity thermal conductivity Prandtl number Grashoff number viscosity thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fouling factor Is a dimensionless quantity None of these Accounts for additional resistances to heat flow Does not provide a safety factor for design Is a dimensionless quantity None of these Accounts for additional resistances to heat flow Does not provide a safety factor for design ANSWER DOWNLOAD EXAMIANS APP
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