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Process Equipment and Plant Design

Process Equipment and Plant Design
In packed towers provided with saddle packing, liquid redistributors are positioned at every __________ times column diameter or 6 metres whichever is less.

43864
20-25
44119
43959

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Process Equipment and Plant Design
Cooling water fouling factors vary in the range of 0.001 to 0.003

(BTU/hr.ft² . °F)⁻¹
(kcal/hr.m² .°C)⁻¹
(W/m².°K)⁻¹
(kcal/hr. m. °C)⁻¹

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Process Equipment and Plant Design
Stage efficiency for packed tower varies with the

All of these
Fluid rates and fluid properties
Type & size of packing
Operating pressure and column diameter

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Process Equipment and Plant Design
Optimum reflux ratio in a continuous distillation column is determined by the

Maximum permissible vapour velocity
None of these
Flooding limit of the column
Total cost consideration (fixed cost of the column plus the cooling water & steam cost)

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Process Equipment and Plant Design
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

43929
52-68
88-105
17-34

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Process Equipment and Plant Design
__________ is the determining factor for the number of bubble caps to be used per tray.

Permissible slot velocity
Liquid load
Tray diameter
Vapor load

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