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 (R₁/R₂)2 R₂/(R₁+R₂) 1 (R₁/R₂)2 R₂/(R₁+R₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K₀ + at. where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be W/m.k² W/m.k None, A is just a number W/m W/m.k² W/m.k None, A is just a number W/m ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation heat transfer rates does not depend upon the type of absorbing surface none of the listed here surface area and temperature of the heat source distance between the heat source and the object receiving the heat type of absorbing surface none of the listed here surface area and temperature of the heat source distance between the heat source and the object receiving the heat ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water is normally used as a coolant in the heat exchange equipments mainly because ofits Low viscosity Abundance & high heat capacity High fluidity Low density Low viscosity Abundance & high heat capacity High fluidity Low density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Forced circulation evaporators are normally used for concentrating liquids having Both A & B High viscosity Neither A nor B Scaling characteristics Both A & B High viscosity Neither A nor B Scaling characteristics ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Low density Dense structure High viscosity Partial ionisation Low density Dense structure High viscosity Partial ionisation ANSWER DOWNLOAD EXAMIANS APP
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