Heat Transfer Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator? Long vertical evaporator Horizontal tube evaporator Calenderia vertical tube evaporator Agitated film evaporator Long vertical evaporator Horizontal tube evaporator Calenderia vertical tube evaporator Agitated film evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Three solid objects of the same material and of equal mass-a sphere, a cylinder (length = diameter) and a cube are at 500°C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change in temperature is the smallest for Cylinder Sphere Equal for all the three Cube Cylinder Sphere Equal for all the three Cube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat sensitive materials can be concentrated in an evaporator employing High residence time High pressure Vacuum None of these High residence time High pressure Vacuum None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation heat transfer rates does not depend upon the distance between the heat source and the object receiving the heat type of absorbing surface surface area and temperature of the heat source none of the listed here distance between the heat source and the object receiving the heat type of absorbing surface surface area and temperature of the heat source none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum thermal conductivity? Carbon black Steel Tar Nitrogen Carbon black Steel Tar Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing expansion bellows in the shell of tubular exchanger is to Increase the heating load Impart structural strength Account for the uneven expansion of shell and tube bundles Facilitate increase of shell length, if needed Increase the heating load Impart structural strength Account for the uneven expansion of shell and tube bundles Facilitate increase of shell length, if needed ANSWER DOWNLOAD EXAMIANS APP
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