Q. An adequate clearance between the tray and the shell wall of a distillation column is provided to

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Q. Overall tray efficiency of a distillation column is the ratio of the number of

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Q. Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the

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Q. Which of the following is used to set the diameter of the distillation column ?

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Q. Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method

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Q. The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the

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Q. In a shell and tube heat exchanger, tube side __________ of the mass velocity.

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Q. Cooling water fouling factors vary in the range of 0.001 to 0.003

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Q. Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter )

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Q. The maximum liquid gradient over a tray must not exceed

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Q. An underdesigned steam trap will

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Q. The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.)

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Q. Needle valves are generally not used for

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Q. Height equivalent to a theoretical plate (HETP) is the height of packing that will give the same separation as one theoretical plate in gas-liquid mass transfer operations like distillation, absorption/stripping and humidification/dehumidification. HETP which is experimentally determined, depends upon the

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Q. Pick out the wrong statement.

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Q. With increase in gas flow rate to fabric surface area ratio (Nm³/hr/m² fabric surface area), the size & the cost of a bag filter

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Q. A head comprises of straight flange section, corner torus, section and central dished section. Crown radius and knuckle radius in a head is related respectively to the

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Q. Accidents in chemical plants are mostly due to

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Q. For identical operating conditions, the pressure drop over __________ tray is the highest out of the following.

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Q. A perforated plate has holes of diameter dₙ arranged in a pitch pₕ. Each hole has a tube of I.D. dₜ passing through it. The ligament efficiency is given by

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