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Process Equipment and Plant Design

Process Equipment and Plant Design
What is the slope of the operating line in the rectifying section of a distillation coloumn?

∞
> 1

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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.

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

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Process Equipment and Plant Design
Longitundinal stress induced in a thin walled cylindrical storage vessel is

PD/6t
PD/4t
PD/3t
PD/2t

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Process Equipment and Plant Design
Lug support is

Same as bracket support
All of these
The most suitable for thick vertical vessel
Provided usually for vessels of much smaller height than skirt supported vessels

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Process Equipment and Plant Design
In the design of a paddle agitator, the ratio (paddle dia/tank dia) is normally taken as

0.8
0.25
0.1
0.5

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Process Equipment and Plant Design
The dust collection efficiency of a cyclone separator

Decreases with increase in gas flow rate
Is inversely proportional to the mass of the dust particle
None of these
Is directly proportional to the radius of the dust particle path

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