Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is 1.66 Dependent on NRe only 3.66 88.66 1.66 Dependent on NRe only 3.66 88.66 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Baffles are provided in heat exchangers to increase the Heat transfer co-efficient Heat transfer rate Heat transfer area Fouling factor Heat transfer co-efficient Heat transfer rate Heat transfer area Fouling factor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Conductance is given by(where, x = thickness, A = heat flow area, K = thermal conductivity.) X/KA K/Ax KA/x A/Kx X/KA K/Ax KA/x A/Kx ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its None of these High specific heat High proportion of air space Dense structure None of these High specific heat High proportion of air space Dense structure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The units of resistance to heat transfer is J.m⁻¹.K⁻¹ J.m⁻².K⁻¹ W.m⁻².K⁻¹ W⁻¹m²K J.m⁻¹.K⁻¹ J.m⁻².K⁻¹ W.m⁻².K⁻¹ W⁻¹m²K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, The temperature drops in the two fluids and the wall are proportional to individual resistances The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The relationship is not generalised The temperature drops in the two fluids and the wall are proportional to individual resistances The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The relationship is not generalised ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS