Heat Transfer For what value of Prandtl number, St = f/2? 1.5 1 2 > 1 1.5 1 2 > 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For an ideal black body Transmissivity = 1 Emissivity = 0 Absorptivity = 1 Reflectivity = 1 Transmissivity = 1 Emissivity = 0 Absorptivity = 1 Reflectivity = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashhoff number is given by gD2βΔtP²μ gD³βΔtP²/μ gD2βΔtρ/μ² gD³.β.Δtρ²/μ² gD2βΔtP²μ gD³βΔtP²/μ gD2βΔtρ/μ² gD³.β.Δtρ²/μ² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, conduction is negligible in the turbulent core of a fluid flowing through a heated pipe? 0.5 > 0.6 < 0.1 < 0.5 0.5 > 0.6 < 0.1 < 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid Excessive corrosion Uneconomic LMTD Decrease in heat exchanger efficiency Its evaporation loss Excessive corrosion Uneconomic LMTD Decrease in heat exchanger efficiency Its evaporation loss 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 KA>2 kB KA < 0.5kB CPA > CPB CPA < CPB KA>2 kB KA < 0.5kB CPA > CPB ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS