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 Its evaporation loss Uneconomic LMTD Decrease in heat exchanger efficiency Excessive corrosion Its evaporation loss Uneconomic LMTD Decrease in heat exchanger efficiency Excessive corrosion ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum heat transfer rate is achieved in __________ flow. Laminar Counter-current Co-current Turbulent Laminar Counter-current Co-current Turbulent ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Conductance is given by(where, x = thickness, A = heat flow area, K = thermal conductivity.) KA/x K/Ax A/Kx X/KA KA/x K/Ax A/Kx X/KA ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is not concerned with the heat transfer? Stanton number Schmidt number Peclet number Brinkman number Stanton number Schmidt number Peclet number Brinkman number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A black body does not __________ radiation. Refract Absorb or emit Reflect Both B & C Refract Absorb or emit Reflect Both B & C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the reciprocal of Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Mass diffusivity Thermal diffusivity x Momentum Mass diffusivity x Momentum diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Mass diffusivity Thermal diffusivity x Momentum Mass diffusivity x Momentum diffusivity ANSWER DOWNLOAD EXAMIANS APP
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