Heat Transfer The sum of reflectivity and absorptivity for an opaque body is equal to 0.5 1 2 0.5 1 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is 43832 2 43834 4 43832 2 43834 4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of a gas May increase or decrease depending on the type of gas Decreases Remains same Increases May increase or decrease depending on the type of gas Decreases Remains same Increases 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 Keeping the heat transfer surface clean None of these Enhancing the fluid pumping rate Increasing the tube length Keeping the heat transfer surface clean None of these Enhancing the fluid pumping rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which area is used in case of heat flow by conduction through a cylinder ? Geometric mean area Logarithmic mean area Arithmetic mean area None of the listed here Geometric mean area Logarithmic mean area Arithmetic mean area None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body is called grey if the monochromatic emissivity of the body is Zero Unity Same for all wavelengths Different for all wavelengths Zero Unity Same for all wavelengths Different for all wavelengths ANSWER DOWNLOAD EXAMIANS APP
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