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Process Equipment and Plant Design

Process Equipment and Plant Design
In a cylinderical vessel subjected to internal pressure, the longitudinal stress σL and the circumferential stress, σh are related by

σh = σL/2
σh = 2 σL
σh = σL
No relation exists

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Process Equipment and Plant Design
In inclined long tube vertical evaporators, the tubes are inclined at an angle of

60°
90°
45°
15°

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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.

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

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Process Equipment and Plant Design
Skirt support is the most suitable for supporting __________ vessels.

Thick walled
Large horizontal
Small horizontal
Tall vertical

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Process Equipment and Plant Design
The thickness of heat transfer plates used in the plate type heat exchanger ranges from __________ mm, pressed in a single piece provided with grooves & corrugations.

3.5 to 7.0
0.3 to 0.8
1.25 to 3.125
44055

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Process Equipment and Plant Design
Shell side heat transfer co-efficient in case of square pitch as compared to the triangular pitch under similar condition of fluid flow and tube size is

Twice
Less
Same
More

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