Heat Transfer The ratio of the total emissive power to the absorptivity for all bodies is same at ther-mal equilibrium. This is __________ law. Kirchoffs Wien's displacement Stefan-Boltzman Planck's Kirchoffs Wien's displacement Stefan-Boltzman Planck's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. May increase or decrease ; depends on the material Remains constant Increases Decreases May increase or decrease ; depends on the material Remains constant Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always < 1 1 ∞ > 1 < 1 1 ∞ > 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side. None of these Single pass, fixed tube sheet U-tube Three pass, fixed tube sheet None of these Single pass, fixed tube sheet U-tube Three pass, fixed tube sheet ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thickness of condensate layer in filmwise condensation depends on the Liquid flow rate from the surface Condensation rate All of these Surface configuration Liquid flow rate from the surface Condensation rate All of these Surface configuration ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body is called grey if the monochromatic emissivity of the body is Unity Different for all wavelengths Zero Same for all wavelengths Unity Different for all wavelengths Zero Same for all wavelengths ANSWER DOWNLOAD EXAMIANS APP
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