Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 1 and 0 1 and ? 0 and 0.5 0 and 1 1 and 0 1 and ? 0 and 0.5 0 and 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is Thick walled Having the value of Ao/Ai > 2 Both B and C Thin walled having the value of Ao Ai/< 2 Thick walled Having the value of Ao/Ai > 2 Both B and C Thin walled having the value of Ao Ai/< 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law. Logarithmic Parabolic Linear Hyperbolic Logarithmic Parabolic Linear Hyperbolic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reason for operating an evaporator in multiple effect is to secure Increased capacity Both A and B Increased steam economy Decreased steam consumption Increased capacity Both A and B Increased steam economy Decreased steam consumption ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has maximum thermal conductivity? Tar Coal Iron Nitrogen Tar Coal Iron Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by Increasing the tube length Enhancing the fluid pumping rate Keeping the heat transfer surface clean None of these Increasing the tube length Enhancing the fluid pumping rate Keeping the heat transfer surface clean None of these ANSWER DOWNLOAD EXAMIANS APP
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