Heat and Mass Transfer The amount of radiation mainly depends on Temperature of body All of these Nature of body Type of surface of body Temperature of body All of these Nature of body Type of surface of body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer A designer chooses the values of fluid flow rates and specific heats in such a manner that the heat capacities of the two fluids are equal. A hot fluid enters the counter flow heat exchanger at 100°C and leaves at 60°C. A cold fluid enters the heat exchanger at 40°C. The mean temperature difference between the two fluids is 60°C 66.7°C 40°C 20°C 60°C 66.7°C 40°C 20°C ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Kirchoff's law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a Brilliant white polished body Red hot body Black body Grey body Brilliant white polished body Red hot body Black body Grey body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The total radiation from a black body per second per unit area is ________ fourth power of the absolute temperature. This statement is known as Stefan Boltzmann law. Equal to Directly proportional to None of these Inversely proportional to Equal to Directly proportional to None of these Inversely proportional to ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat transfer by radiation mainly depends upon All of these Nature of the body Its temperature Kind and extent of its surface All of these Nature of the body Its temperature Kind and extent of its surface ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The heat transfer takes place according to Second law of thermodynamics Kirchhoff's law Zeroth law of thermodynamics First law of thermodynamics Second law of thermodynamics Kirchhoff's law Zeroth law of thermodynamics First law of thermodynamics ANSWER DOWNLOAD EXAMIANS APP
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