Heat Transfer Steam trap is used to Stop the supply of steam Condense the steam flowing in the pipeline None of these Remove water resulting from partial condensation of steam Stop the supply of steam Condense the steam flowing in the pipeline None of these Remove water resulting from partial condensation of steam ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Double pipe heat exchangers are preferably useful, when Overall heat transfer co-efficient is very high Requirement of heat transfer area is low A corrosive liquid is to be heated High viscosity liquid is to be cooled Overall heat transfer co-efficient is very high Requirement of heat transfer area is low A corrosive liquid is to be heated High viscosity liquid is to be cooled ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation of steam on cooling surface is promoted When both the steam and the tube are clean None of these An oily surface Only in presence of air When both the steam and the tube are clean None of these An oily surface Only in presence of air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator depends upon the Neither A nor B Both A and B Rate of heat transfer Heat balance consideration Neither A nor B Both A and B Rate of heat transfer Heat balance consideration 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 Increase Decrease Either increase or decrease; depends on the coolant flow rate Remain unchanged Increase Decrease Either increase or decrease; depends on the coolant flow rate Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m².s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m²/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is 5000 6000 2000 4000 5000 6000 2000 4000 ANSWER DOWNLOAD EXAMIANS APP
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