Heat Transfer For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is Nu = 0.023 Re0.8 . Pr0.4 Nu = Gz Nu = Gz Nu = 2Gz0.5 Nu = 0.023 Re0.8 . Pr0.4 Nu = Gz Nu = Gz Nu = 2Gz0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are Nu, Pr Nu, Pr, Re Nu, Gz Re.Gz Nu, Pr Nu, Pr, Re Nu, Gz Re.Gz ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steady state one dimensional heat flow by conduction as given by Fourier's low does not assume that Boundary surfaces are isothermal Material is anisotropic There is no internal heat generation Constant temperature gradient exists Boundary surfaces are isothermal Material is anisotropic There is no internal heat generation Constant temperature gradient exists ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. May increase or decrease; depends on the pressure Increase Remain unchanged Decrease May increase or decrease; depends on the pressure Increase Remain unchanged Decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equivalent diameter for pressure drop is __________ that for heat transfer greater than smaller than equal to None of the listed here greater than smaller than equal to None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? None of these Square pitch Triangular pitch Diagonal square pitch None of these Square pitch Triangular pitch Diagonal square pitch ANSWER DOWNLOAD EXAMIANS APP
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