Heat Transfer Stefen's block body radiation law can also be derived from __________ law. Fourier's None of these Kirchoffs Planck's Fourier's None of these Kirchoffs Planck's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Is not affected Decreases Increases May increase or decrease; depends on the feed Is not affected Decreases Increases May increase or decrease; depends on the feed 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 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 The driving potential for the crystal growth during crystallisation is the __________ of the solution. Viscosity Super-saturation Density Concentration Viscosity Super-saturation Density Concentration ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the unit of thermal conductivity ? Kcal/hr. °C Kcal/hr. m² °C Kcal/hr.m.°C Kcal/hr.m Kcal/hr. °C Kcal/hr. m² °C Kcal/hr.m.°C Kcal/hr.m ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 44 min 15 min 51 min 22 min 44 min 15 min 51 min 22 min ANSWER DOWNLOAD EXAMIANS APP
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