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Process Equipment and Plant Design

Process Equipment and Plant Design
Nominal size of a pipe is an indication of its __________ diameter.

Inner
Outer
Approximate
None of these

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Process Equipment and Plant Design
In shell and tube heat exchangers, straight tie rods are used to

None of these
Account for thermal strain
Hold baffle in space
Fix the tubes in position

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Process Equipment and Plant Design
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as

D = 3√t
D = 1.6 √t
D = 1.5 t
D = 1.1 t

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Process Equipment and Plant Design
The normal range of velocity of water in pipes is __________ m/sec.

15-30
1-2
10-50
0.1-0.5

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Process Equipment and Plant Design
Vertical vessels are not supported by

Skirts
Columns
Brackets
Saddles

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Process Equipment and Plant Design
Multiple blade paddle agitator is used for mixing high viscosity liquids/paste in which the paddle diameter is commonly 0.8 times the tank diameter. However, the width of the blade is in the range of __________ times the paddle diameter.

0.3 to 0.5
0.1 to 0.25
0.65 to 0.80
0.5 to 0.6

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