Heat Transfer In a shell and tube heat exchanger, the tube side heat transfer co-efficient just at the entrance of the tube is Same as average heat transfer co-efficient for tube side Zero Infinity None of these Same as average heat transfer co-efficient for tube side Zero Infinity None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The units of resistance to heat transfer is W.m⁻².K⁻¹ J.m⁻².K⁻¹ W⁻¹m²K J.m⁻¹.K⁻¹ W.m⁻².K⁻¹ J.m⁻².K⁻¹ W⁻¹m²K J.m⁻¹.K⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Forced convection and conduction Conduction only Free and forced convection Forced convection only Forced convection and conduction Conduction only Free and forced convection Forced convection only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most widely used heat insulating material for pipelines carrying steam? Cotton followed by aluminium foil Fireclay refractory followed by aluminium sheet 85% magnesia cement and glass wool Tar dolomite bricks followed by asbestos Cotton followed by aluminium foil Fireclay refractory followed by aluminium sheet 85% magnesia cement and glass wool Tar dolomite bricks followed by asbestos ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum thermal conductivity? Tar Steel Nitrogen Carbon black Tar Steel Nitrogen Carbon black ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The interchange factor for radiation heat transfer from surface 'x' to surface 'y' in case of an infinite parallel planes with emis-sivities εx & εy is given by Εx . εy Εx + εy 1/εx + 1/εy (εx + εy)/(εx + εy - εx . εy) Εx . εy Εx + εy 1/εx + 1/εy (εx + εy)/(εx + εy - εx . εy) ANSWER DOWNLOAD EXAMIANS APP
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