Process Equipment and Plant Design The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches. 12 34 18 6 12 34 18 6 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the Both A & B Neither A nor B Economic limit reached, when the plant cost exceeds the saving of steam Practical limit reached, due to low heat transfer rate because of inadequate temperature difference Both A & B Neither A nor B Economic limit reached, when the plant cost exceeds the saving of steam Practical limit reached, due to low heat transfer rate because of inadequate temperature difference ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design With increase in temperature drop (in a shell and tube heat exchanger), the LMTD correction factor, FT Remains constant Decreases very rapidly Increases very rapidly Increases linearly Remains constant Decreases very rapidly Increases very rapidly Increases linearly ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns. Less More Same Either A or B; no generalisation can be made Less More Same Either A or B; no generalisation can be made ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design __________ is the determining factor for the number of bubble caps to be used per tray. Permissible slot velocity Tray diameter Liquid load Vapor load Permissible slot velocity Tray diameter Liquid load Vapor load ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a vertical short tube evaporator (Calendria type), the Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube All of these Liquor is inside the tube while the steam is outside the tube Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube All of these Liquor is inside the tube while the steam is outside the tube Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used ANSWER DOWNLOAD EXAMIANS APP
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