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Process Equipment and Plant Design

Process Equipment and Plant Design
Le/D for 90° elbow (medium radius) and 90°square elbow would be respectively around

3 and 5
25 and 60
100 and 250
250 and 600

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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
17-34
88-105

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Process Equipment and Plant Design
The value of fouling factor depends upon the

Suspended solids in the fluid
Characteristic of process fluid
Velocity of process fluid containing suspended solids
All of these

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Process Equipment and Plant Design
Equivalent diameter for heat transfer calculation for a duct of square cross-section having each side as 'd' will be

√d
√(2πd)
√(2d)
D

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Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

1000
3000
10000
5000

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Process Equipment and Plant Design
The distance between the centre of a rivet hole to the nearest edge of the plate is called

Pitch
Back pitch
None of these
Margin

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