EXAMIANS
Pick out the wrong statement pertaining to the design of the distillation column.
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__________ is the determining factor for the number of bubble caps to be used per tray.
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The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.
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Tube height in a calendria type evaporator is normally less than __________ metres.
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Heat transfer co-efficient, hG(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to
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Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.
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In actual operation of a bubble cap distillation tower, the __________ at the bottom of the tower is more than that at the top of the tower.
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A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.
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The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is
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The dust collection efficiency of a cyclone separator
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