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Process Equipment and Plant Design

Process Equipment and Plant Design
Friction factor for turbulent flow in a new pipe is given by

f = 0.22 NRe0.05
f = 0.04/NRe0.16
f = 16/NRe
f = 25/NRe

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Process Equipment and Plant Design
The force due to wind load acting on a tall vessel depends upon its

Outside diameter
Shape
Height
All of these

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

Compressive
Longitudinal
Circumferential tensile
Radial

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Process Equipment and Plant Design
The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from

4 to 8
3 to 5
6 to 12
2 to 3

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Process Equipment and Plant Design
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.

20-40
1000-1500
43835
100-150

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Process Equipment and Plant Design
Steam is preferred to be used as a heating medium in heat exchangers, because of its

High latent heat
Non-corrosive condensate
Low cost
High film co-efficient

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