Heat Transfer The Grashoff number is defined as the ratio of the buoyancy to surface tension forces buoyancy to viscous forces buoyancy to inertial forces inertial to viscous forces. buoyancy to surface tension forces buoyancy to viscous forces buoyancy to inertial forces inertial to viscous forces. ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reason for operating an evaporator in multiple effect is to secure Increased capacity Decreased steam consumption Both A and B Increased steam economy Increased capacity Decreased steam consumption Both A and B Increased steam economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A dephlegmator is a Double pipe heat exchanger Partial condenser Vacuum evaporator Total condenser Double pipe heat exchanger Partial condenser Vacuum evaporator Total condenser ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will Decrease Either increase or decrease; depends on the coolant flow rate Increase Remain unchanged Decrease Either increase or decrease; depends on the coolant flow rate Increase Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Choose the most important factor on which the heat conducted through a wall in a unit time will depend on? Thickness of the wall Area of the wall perpendicular to heat flow Material of the wall Temperature difference between the two surfaces of the wall Thickness of the wall Area of the wall perpendicular to heat flow Material of the wall Temperature difference between the two surfaces of the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it Increases the overall heat transfer coefficient None of these Decreases the outlet temperature of cooling medium Decreases the pressure drop Increases the overall heat transfer coefficient None of these Decreases the outlet temperature of cooling medium Decreases the pressure drop ANSWER DOWNLOAD EXAMIANS APP
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