Heat and Mass Transfer Which of the following is a case of steady state heat transfer? Heating of building in winter I.C. engine Air preheaters None of these Heating of building in winter I.C. engine Air preheaters None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The logarithmic mean temperature difference (tm) is given by (where Δt1 and Δt2 are temperature differences between the hot and cold fluids at entrance and exit) tm = (Δt1 - Δt2)/ loge (Δt1/Δt2) tm = loge (Δt1/Δt2)/ (Δt1 - Δt2) tm = tm = (Δt1 - Δt2) loge (Δt1/Δt2) tm = loge (Δt1 - Δt2)/ Δt1/Δt2 tm = (Δt1 - Δt2)/ loge (Δt1/Δt2) tm = loge (Δt1/Δt2)/ (Δt1 - Δt2) tm = tm = (Δt1 - Δt2) loge (Δt1/Δt2) tm = loge (Δt1 - Δt2)/ Δt1/Δt2 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The amount of radiation mainly depends upon the Temperature of the body All of these Type of surface of the body Nature of the body Temperature of the body All of these Type of surface of the body Nature of the body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has maximum value of thermal conductivity? Copper Steel Aluminium Brass Copper Steel Aluminium Brass ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Free convection flow depends on Density Coefficient of viscosity Gravitational force All of these Density Coefficient of viscosity Gravitational force All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The automobile radiator is a heat exchanger of Parallel flow type Counter flow type Cross flow type Regenerator type Parallel flow type Counter flow type Cross flow type Regenerator type ANSWER DOWNLOAD EXAMIANS APP