Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? > 1 1 < 1 None of these > 1 1 < 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ paint has the minimum absorption co-efficient. Grey Black White lead Light cream Grey Black White lead Light cream ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be 0.45 0.55 0.85 0.35 0.45 0.55 0.85 0.35 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In an extended surface heat exchanger, fluid having lower co-efficient Can flow either inside or outside the tubes Flows outside the tubes Flows through the tube Should not be used as it gives very high pressure drop Can flow either inside or outside the tubes Flows outside the tubes Flows through the tube Should not be used as it gives very high pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Fourier's law, the proportionality constant is called the Heat transfer co-efficient Thermal diffusivity Thermal conductivity Stefan-Boltzman constant Heat transfer co-efficient Thermal diffusivity Thermal conductivity Stefan-Boltzman constant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum thermal conductivity? Nitrogen Carbon black Tar Steel Nitrogen Carbon black Tar Steel ANSWER DOWNLOAD EXAMIANS APP
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