Heat Transfer Multipass heat exchangers are used To reduce the pressure drop For low heat load To obtain higher heat transfer co-efficient and shorter tube Because of simplicity of fabrication To reduce the pressure drop For low heat load To obtain higher heat transfer co-efficient and shorter tube Because of simplicity of fabrication ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water always boils when its Saturated vapour pressure equals the external pressure on its surface Temperature reaches 100° C Saturated vapour pressure is less than the atmospheric pressure Vapour pressure equals 76 cm of Hg Saturated vapour pressure equals the external pressure on its surface Temperature reaches 100° C Saturated vapour pressure is less than the atmospheric pressure Vapour pressure equals 76 cm of Hg ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law. Logarithmic Hyperbolic Parabolic Linear Logarithmic Hyperbolic Parabolic Linear ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a boiling curve, the peak heat flux is called the __________ point. Nusselt Burnout Leidenfrost Boiling Nusselt Burnout Leidenfrost Boiling ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For what value of Prandtl number, St = f/2? 2 > 1 1 1.5 2 > 1 1 1.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is 4.36 2.36 Dependent on NRe only 120.36 4.36 2.36 Dependent on NRe only 120.36 ANSWER DOWNLOAD EXAMIANS APP
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