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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.

20-25
43864
44119
43959

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Process Equipment and Plant Design
Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as

Δp = G
Δp = G2
Δp = G0.5
Δp = 1/G0.6

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Process Equipment and Plant Design
Filtration rate is affected by the

Pressure drop across the cake & filter medium
Cake & filter medium resistance
All of these
Area of filtering surface & the viscosity of filtrate

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Process Equipment and Plant Design
The wall thickness of thin cylindrical shell with hemispherical ends is __________ that of the spherical ends.

Either B or C; depends on maximum permissible internal pressure
Less than
Equal to
More than

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Process Equipment and Plant Design
In a thin cylindrical shell, the hoop stress is __________ stress.

Compressive
Circumferential tensile
Radial
Longitudinal

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Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

1.2-1.5
0.1-0.2
0.4-0.9
0.2-0.5

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