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) K/h0 h0/2K 2K/h0 h0/K K/h0 h0/2K 2K/h0 h0/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body) Independent of T αT α T⁴ α 1/T Independent of T αT α T⁴ α 1/T ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer It is not preferable to use superheated steam in evaporators, because of its very high pressure none of the listed here low film co-efficient high temperature high pressure none of the listed here low film co-efficient high temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam side heat transfer co-efficient in an evaporator is in the range of __________ kcal/hr.m²°C. 5000-15000 18537 1000-1500 100-500 5000-15000 18537 1000-1500 100-500 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer Decreases Increases Remains unaffected Increases exponentially Decreases Increases Remains unaffected Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of momentum diffusivity to thermal diffusivity is the __________ number. Nusselt Stanton Prandtl Grashoff Nusselt Stanton Prandtl Grashoff ANSWER DOWNLOAD EXAMIANS APP
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