Heat Transfer LMTD for counterflow and prallel flow heat exchanger will be the same, when the Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid Outlent temperature of both the hot and cold fluid are same None of these Cold fluid is heated to a certain temperature by condensing steam (isothermal fluid) Outlet temperature of hot fluid is less than the outlet temperature of the cold fluid Outlent temperature of both the hot and cold fluid are same None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single effect evaporator, the economy is > 1 1 None of these < 1 > 1 1 None of these < 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The driving potential for the crystal growth during crystallisation is the __________ of the solution. Concentration Density Super-saturation Viscosity Concentration Density Super-saturation Viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A metal ball of radius 0.1 m at a uniform temperature of 90°C is left in air at 30°C. The density and the specific heat of the metal are 3000 kg/m³ and 0.4 kJ/kg.K respectively. The heat transfer co-efficient is 50 W/m².K Neglecting the temperature gradients inside the ball, the time taken (in hours) for the ball to cool to 60°C is 555 55.5 0.55 0.15 555 55.5 0.55 0.15 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number. Grashoff Condensation Brinkman Stantan Grashoff Condensation Brinkman Stantan ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) K/h0 hi/K 2hi/K 2K/h0 K/h0 hi/K 2hi/K 2K/h0 ANSWER DOWNLOAD EXAMIANS APP
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