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Process Equipment and Plant Design

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

43864
44180
18-22
43990

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Process Equipment and Plant Design
In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)

4P²/πd
Πd/4P²
(P² - πd²/4)/πd
4(P² - πd²/4)/πd

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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.

6
12
18
34

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Process Equipment and Plant Design
In case of a 'thin' pressure vessel, the ratio of its diameter to wall thickness is

> 20
< 10
> 10
30

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Process Equipment and Plant Design
For a 25 mm hole drilled in plates to be rivetted, the shank diameter of the rivet should be __________ mm.

27
23
25
26

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Process Equipment and Plant Design
Speed of industrial paddle agitator ranges from __________ rpm.

500 to 750
1 to 5
1000 to 2000
20 to 100

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