Heat Transfer A sphere of radius 'R₁' is enclosed in a sphere of radius 'R₂'. The view (or shape) factor for radiative heat transfer of the outer sphere with respect to the inner sphere is 1 R₂/(R₁+R₂) (R₁/R₂)2 1 R₂/(R₁+R₂) (R₁/R₂)2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 'Fouling factor' used in the design of a multipass shell and tube heat exchanger is a Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient None of these Non-dimensional factor Factor of safety Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient None of these Non-dimensional factor Factor of safety ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is Parabolic None of these Linear Hyperbolic Parabolic None of these Linear Hyperbolic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is 88.66 Dependent on NRe only 3.66 1.66 88.66 Dependent on NRe only 3.66 1.66 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most controlling factor for the rate of bubble detachment from the hot solid surface? Interfacial tension Liquid viscosity Liquid density Hot surface temperature Interfacial tension Liquid viscosity Liquid density Hot surface temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of Mass transfer co-efficients Activity co-efficients Concentrations Chemical potentials Mass transfer co-efficients Activity co-efficients Concentrations Chemical potentials ANSWER DOWNLOAD EXAMIANS APP
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