Process Equipment and Plant Design In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio. 2.2 to 2.6 2.7 to 3 1.1 to 1.5 1.6 to 2 2.2 to 2.6 2.7 to 3 1.1 to 1.5 1.6 to 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.) L/Z.H.ρ H.ρ/L Z.H.ρ/L Z.H/L.ρ L/Z.H.ρ H.ρ/L Z.H.ρ/L Z.H/L.ρ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube? Long tube vertical evaporator Horizontal tube evaporator Short tube vertical evaporator None of these Long tube vertical evaporator Horizontal tube evaporator Short tube vertical evaporator None of these ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The maximum liquid gradient over a tray must not exceed 5" Half the tray spacing 2"-3.5" 0.5" -1.25" 5" Half the tray spacing 2"-3.5" 0.5" -1.25" ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design The normal range of velocity of steam in pipes is __________ m/sec. 1-5 80-100 0.1-0.5 10-20 1-5 80-100 0.1-0.5 10-20 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Safety valves are provided in chemical equipments to guard against excessive Turbulence Pressure/pressure fluctuation Noise Temperature Turbulence Pressure/pressure fluctuation Noise Temperature ANSWER DOWNLOAD EXAMIANS APP