Heat Transfer Radiation heat losses from satisfactorily insulated high pressure boilar may be about __________ percent. 26 1 7 18 26 1 7 18 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ? All of these Plate Sphere Cube All of these Plate Sphere Cube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Film condensation is promoted on a/an __________ surface. dirty coated clean & smooth oily dirty coated clean & smooth oily ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Decreases May increase or decrease; depends on the feed Is not affected Increases Decreases May increase or decrease; depends on the feed Is not affected Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, floating head is used for Large temperature differentials Less corrosion of tubes Low pressure drop High heat transfer co-efficient Large temperature differentials Less corrosion of tubes Low pressure drop High heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid Uneconomic LMTD Excessive corrosion Its evaporation loss Decrease in heat exchanger efficiency Uneconomic LMTD Excessive corrosion Its evaporation loss Decrease in heat exchanger efficiency ANSWER DOWNLOAD EXAMIANS APP
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