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Process Equipment and Plant Design

Process Equipment and Plant Design
The operating pressure drop range in a bag filter is about __________ mm water gauge.

50-150
500-1500
43961
1500-2500

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Process Equipment and Plant Design
For turbine agitator, the impeller diameter is about

0.3 to 0.5 d
0.65 to 0.85 d
0.95 d
0.1 to 0.2 d

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Process Equipment and Plant Design
For laminar flow (NRe < 2100) in steel pipe, the optimum inside pipe diameter is given by

Di, opt = 3 Q0.36 . ρ1.86 μ0.08
Di, opt = 7.6 Q0.36 . ρ0.9
Di, opt = 3.9 Q0.45 . ρ0.23
Di, opt = 3 Q0.36 ρ0.18

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Process Equipment and Plant Design
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Liquid gradient on the tray
Lower static submergence
Small downcomer liquid seal
Lower skirt clearance

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Process Equipment and Plant Design
Hold up of material in a operating rotary drier is in the range of

0.05 to 0.15
0.25 to 0.50
0.8 to 0.9
0.5 to 0.8

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Process Equipment and Plant Design
The approximate liquid depth in an agitation tank is equal to (where, d = tank diameter)

0.75 d
2 d
D
0.5 d

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