Heat Transfer In a shell and tube heat exchanger, The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The relationship is not generalised The temperature drops in the two fluids and the wall are proportional to individual resistances The temperature drop is inversely proportional to the resistance across which the drop occurs There is no relationship between temperature drop and resistance The relationship is not generalised The temperature drops in the two fluids and the wall are proportional to individual resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will Remain unchanged Decrease by 22 Increase by 1.8 times Increase by 216 Remain unchanged Decrease by 22 Increase by 1.8 times Increase by 216 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation. Is same as Half Greater than Lower than Is same as Half Greater than Lower than ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Decreases Increases May increase or decrease; depends on the feed Is not affected Decreases Increases May increase or decrease; depends on the feed Is not affected 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 ? Cube Sphere All of these Plate Cube Sphere All of these Plate ANSWER DOWNLOAD EXAMIANS APP
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? Calenderia vertical tube evaporator Agitated film evaporator Horizontal tube evaporator Long vertical evaporator Calenderia vertical tube evaporator Agitated film evaporator Horizontal tube evaporator Long vertical evaporator ANSWER DOWNLOAD EXAMIANS APP
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