Heat Transfer Dropwise condensation occurs on __________ surfaces polished smooth clean clean and dirt free contaminated cooling polished smooth clean clean and dirt free contaminated cooling 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 Equal for all the three Sphere Cube Cylinder Equal for all the three Sphere Cube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Tubes are held between top and bottom tube sheets in Calenderia type evaporator by keeping Both the tube sheets floating Both the tube sheets fixed The top tube sheet fixed and the bottom tube-sheet floating The top tube sheet floating and bottom tube sheet fixed Both the tube sheets floating Both the tube sheets fixed The top tube sheet fixed and the bottom tube-sheet floating The top tube sheet floating and bottom tube sheet fixed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For shell and tube heat exchanger, with increasing heat transfer area, the purchased cost per unit heat transfer area Increases Passes through a maxima Remains constant Decreases Increases Passes through a maxima Remains constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vent pipes are provided in a condenser to Remove non-condensable gases Facilitate easy cleaning of tubes None of these Purge the condenser Remove non-condensable gases Facilitate easy cleaning of tubes None of these Purge the condenser ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The driving potential for the crystal growth during crystallisation is the __________ of the solution. Concentration Super-saturation Density Viscosity Concentration Super-saturation Density Viscosity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS