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Process Equipment and Plant Design

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

Red
Blue
Black
Yellow

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Process Equipment and Plant Design
Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, σ = yield strength and E = modulus of elasticity)

Σ
E
E/σ
Σ/E

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Process Equipment and Plant Design
What is the value of 'q' for saturated liquid feed to a distillation column?

1
>1

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

180
1
8
80

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Process Equipment and Plant Design
The minimum plate spacing in most of the pertroleum refinery distillation columns (of dia > 3 ft) is normally __________ inches.

12
34
6
18

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Process Equipment and Plant Design
Ratio of tube length to shell diameter for a shell and tube heat exchanger is

Both B & C
8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers
< 4 : 1 for gas-gas exchangers
4 : 1 to 8 : 1 for liquid-liquid exchanger

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