Heat Transfer A hot body will radiate heat most rapidly, if its surface is White & rough Black & rough White & polished Black & polished White & rough Black & rough White & polished Black & polished ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction in the turbulent core of a fluid flowing through a heated pipe is negligible, if the value of Prandtl number is 0.4 0.8 0.2 0.6 0.4 0.8 0.2 0.6 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) α T⁴ Independent of T αT α 1/T α T⁴ Independent of T αT α 1/T ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam consumption in kg/hr in case of an evaporator is given by (where, C & E are capacity the economy of the evaporator respectively) C/E CE E/C 1/CE C/E CE E/C 1/CE ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Remain unchanged Increase May increase or decrease; depends on the pressure Decrease Remain unchanged Increase May increase or decrease; depends on the pressure Decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Fourier's law, the proportionality constant is called the Thermal conductivity Thermal diffusivity Heat transfer co-efficient Stefan-Boltzman constant Thermal conductivity Thermal diffusivity Heat transfer co-efficient Stefan-Boltzman constant ANSWER DOWNLOAD EXAMIANS APP
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