Heat Transfer The units of resistance to heat transfer is W.m⁻².K⁻¹ J.m⁻².K⁻¹ W⁻¹m²K J.m⁻¹.K⁻¹ W.m⁻².K⁻¹ J.m⁻².K⁻¹ W⁻¹m²K J.m⁻¹.K⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is correct ? Rate = Driving force x Resistance Resistance = Driving force x Rate Rate = Resistance/Driving force Driving force = Rate x Resistance Rate = Driving force x Resistance Resistance = Driving force x Rate Rate = Resistance/Driving force Driving force = Rate x Resistance ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m² .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat exchanger, when the Higher condensing film co-efficient is desired Condensate is corrosive in nature Temperature of the incoming vapor is very high Lower pressure drop through the exchanger is desired Higher condensing film co-efficient is desired Condensate is corrosive in nature Temperature of the incoming vapor is very high Lower pressure drop through the exchanger is desired ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the Capacity of the evaporator is decreased Capacity of the evaporator is increased True temperature drop increases Both B and C Capacity of the evaporator is decreased Capacity of the evaporator is increased True temperature drop increases Both B and C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun? Grey paint Black paint Yellow paint White paint Grey paint Black paint Yellow paint White paint ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface) 2K/h0 h0/K K/h0 h0/2K 2K/h0 h0/K K/h0 h0/2K ANSWER DOWNLOAD EXAMIANS APP
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