Heat Transfer Which of the following has maximum thermal conductivity? Tar Coal Iron Nitrogen Tar Coal Iron Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number for most of dry gases is about 150 0.72 70 0.001 150 0.72 70 0.001 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface) h0/K h0/2K K/h0 2K/h0 h0/K h0/2K K/h0 2K/h0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? Logarithmic mean area None of the listed here Geometric mean area Arithmetic mean area Logarithmic mean area None of the listed here Geometric mean area Arithmetic mean area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are Linearly related Never different Different Same Linearly related Never different Different Same 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 W/m.k None, A is just a number W/m.k² W/m W/m.k None, A is just a number ANSWER DOWNLOAD EXAMIANS APP
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