Heat Transfer Double pipe heat exchangers are preferably useful, when High viscosity liquid is to be cooled Overall heat transfer co-efficient is very high A corrosive liquid is to be heated Requirement of heat transfer area is low High viscosity liquid is to be cooled Overall heat transfer co-efficient is very high A corrosive liquid is to be heated Requirement of heat transfer area is low ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD correction factor which is to be applied for a cross-flow heat exchanger increases with increase in the number of shell passes. Its value for a single pass cross flow heat exchanger is 1 <1 >1 Zero 1 <1 >1 Zero ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low thermal conductivity viscosity Prandtl number Grashoff number thermal conductivity viscosity Prandtl number Grashoff number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equation, Nst = f/2, is the __________ analogy. Prandtl Reynolds None of these Colburn Prandtl Reynolds None of these Colburn ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides Higher economy Lower capacity Lower economy Both A & B Higher economy Lower capacity Lower economy Both A & B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by __________ may not necessarily require the presence of a medium natural convection radiation coduction none of the listed here natural convection radiation coduction none of the listed here ANSWER DOWNLOAD EXAMIANS APP
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