Heat and Mass Transfer The unit of Stefan Boltzmann constant is watt/cm3 °K watt/cm4 °K watt/cm2 °K⁴ watt2/cm °K⁴ watt/cm3 °K watt/cm4 °K watt/cm2 °K⁴ watt2/cm °K⁴ ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal conductivity of water _________ with rise in temperature. Increases May increase or decrease depending upon temperature Decreases Remain same Increases May increase or decrease depending upon temperature Decreases Remain same ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In a heat exchanger with one fluid evaporating or condensing, the surface area required is least in Parallel flow All of these Cross flow Counter flow Parallel flow All of these Cross flow Counter flow ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be opaque when P=1, x = 0 and a = 0 P = 0, x = 0 and a = 1 X = 0, a + p = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 P = 0, x = 0 and a = 1 X = 0, a + p = 1 P = 0, x = 1 and a = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The use of heat exchangers is made in All of these Condensers and evaporators in refrigeration and air conditioning units Radiators in automobile Condensers and boilers in steam plants All of these Condensers and evaporators in refrigeration and air conditioning units Radiators in automobile Condensers and boilers in steam plants ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In heat transfer, conductance equals conductivity (kcal/hr/sq.m/°C/cm) divided by °C (temperature) Sq. m (area) K.cal (heat) Hr (time) °C (temperature) Sq. m (area) K.cal (heat) Hr (time) ANSWER DOWNLOAD EXAMIANS APP
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