Heat Transfer In case of a multipass shell and tube heat exchanger, providing a baffle on the shell side __________ the heat transfer rate. May increase or decrease, depends on the type of baffle Decreases Increases Does not affect May increase or decrease, depends on the type of baffle Decreases Increases Does not affect 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 in physical contact with each other Between two bodies not in physical contact with each other Both B & C From one part of a body to the another part of the same body Between two bodies in physical contact with each other Between two bodies not in physical contact with each other Both B & C From one part of a body to the another part of the same body ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer occurs by natural convection because change in temperature causes difference in Density Viscosity Heat capacity Thermal conductivity Density Viscosity Heat capacity Thermal conductivity 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 Both A & B Lower economy Higher economy Lower capacity Both A & B Lower economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Both solids & liquids Solids Liquids Gases Both solids & liquids Solids Liquids Gases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of floating head in a heat exchanger is to Avoid buckling of tubes Facilitate its lengthening, if needed Provide support for tubes Decrease the pressure drop Avoid buckling of tubes Facilitate its lengthening, if needed Provide support for tubes Decrease the pressure drop ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS