Heat Transfer The ratio of velocity head to tube side return loss in case of a multipass shell and tube heat exchanger is 4 2 43834 43832 4 2 43834 43832 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body is called grey if the monochromatic emissivity of the body is Same for all wavelengths Zero Different for all wavelengths Unity Same for all wavelengths Zero Different for all wavelengths Unity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when CPA < CPB CPA > CPB KA < 0.5kB KA>2 kB CPA < CPB CPA > CPB KA < 0.5kB KA>2 kB ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Partial ionisation Dense structure High viscosity Low density Partial ionisation Dense structure High viscosity Low density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a multipass shell and tube heat exchanger, the LMTD correction factor is always < 1 1 > 1 Between 1 & 2 < 1 1 > 1 Between 1 & 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. Decreases Remains constant Increases May increase or decrease ; depends on the material Decreases Remains constant Increases May increase or decrease ; depends on the material ANSWER DOWNLOAD EXAMIANS APP
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