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Process Equipment and Plant Design

Process Equipment and Plant Design
Oxygen carrying pipelines in chemical industries are coloured with __________ colour.

Yellow
Blue
Black
Red

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Process Equipment and Plant Design
What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers?

Equal to tube O.D
6.5 mm
Equal to tube I.D
6.5 cms

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Process Equipment and Plant Design
Value of Peclet number = 0, is the representative of

Complete back mixing
Eddy diffusivity = 0
Plug flow
Laminar flow

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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

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

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Process Equipment and Plant Design
Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C.

1250
7500
15000
2500

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Process Equipment and Plant Design
In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

2.5 to 4.0
0.5 to 1.5
10 to 15
5 to 10

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