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Process Equipment and Plant Design

Process Equipment and Plant Design
Cylinderical shell thickness of rotary drier is generally __________ mm.

18-22
43990
44180
43864

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

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

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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
0.5 to 1.5
2.5 to 4.0
5 to 10

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Process Equipment and Plant Design
__________ of water makes it a widely used coolant in heat exchangers.

Low corrosiveness
Low viscosity
High specific heat
Low dirt factor

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Process Equipment and Plant Design
A/an __________ is used for changing the direction of a pipeline.

Flange
Union
Elbow
Disc compensator

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Process Equipment and Plant Design
The raio, (properller agitator dia/tank dia) is normally taken as

0.5-0.65
0.75-0.85
0.15-030
0.60-0.90

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