Heat Transfer In a heat exchanger, one transfer unit means None of these Both A and B The size of the exchanger in which heat transfer rate is 1 kcal/hr A section of the exchanger in which change in temperature of one stream equals the average driving force in the section None of these Both A and B The size of the exchanger in which heat transfer rate is 1 kcal/hr A section of the exchanger in which change in temperature of one stream equals the average driving force in the section ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For hot feed, forward feeding as compared to backward feeding results in __________ economy. No effect on None of these Increased Decreased No effect on None of these Increased Decreased ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger, floating head is provided to increase the heat transfer area increase log mean temperature gradient facilitate cleaning of the exchanger relieve stresses caused by thermal expansion increase the heat transfer area increase log mean temperature gradient facilitate cleaning of the exchanger relieve stresses caused by thermal expansion ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is Sherwood number Nusselt number Schmidt number Stanton number Sherwood number Nusselt number Schmidt number Stanton number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Calburn analogy is applicable for the value of Prandtl number from 0.5 to 5 120 to 400 0.6 to 120 0.001 to 1 0.5 to 5 120 to 400 0.6 to 120 0.001 to 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place Between two bodies not in physical contact with each other Both B & C Between two bodies in physical contact with each other From one part of a body to the another part of the same body Between two bodies not in physical contact with each other Both B & C Between two bodies in physical contact with each other From one part of a body to the another part of the same body ANSWER DOWNLOAD EXAMIANS APP
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