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Process Equipment and Plant Design

Process Equipment and Plant Design
Steam is preferred to be used as a heating medium in heat exchangers, because of its

High latent heat
Non-corrosive condensate
Low cost
High film co-efficient

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Process Equipment and Plant Design
Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate?

Diagonal square pitch
Heat transfer rate is independent of tube arrangement
Triangular pitch
Square pitch

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Process Equipment and Plant Design
The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always

>1
1
Equal to the order of reaction
< 1

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

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

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Process Equipment and Plant Design
Value of Peclet number = ∞, is the representative of

Eddy diffusivity = 0
Complete back mixing
Laminar flow
Plug flow

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Process Equipment and Plant Design
Saddle supports are used for supporting __________ vessels.

Thick spherical
Horizontal cylinderical
Thick walled vertical
Tall vertical

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