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Process Equipment and Plant Design

Process Equipment and Plant Design
Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as

Δp = 1/G0.6
Δp = G
Δp = G0.5
Δp = G2

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Process Equipment and Plant Design
Bubble cap plate column is

A finite stage contactor
A differential stage contactor
A continuous contactor
Used only for distillation, not for absorption

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

10-20
80-100
1-5
0.1-0.5

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

Plug flow
Eddy diffusivity = 0
Laminar flow
Complete back mixing

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Process Equipment and Plant Design
The type of stress developed in a metallic bar on subjecting it to a change in temperature without allowing it to be deformed is __________ stress.

Thermal
Tensile
Shear
Compressive

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Process Equipment and Plant Design
Optimum reflux ratio in a continuous distillation column is determined by the

Total cost consideration (fixed cost of the column plus the cooling water & steam cost)
Maximum permissible vapour velocity
Flooding limit of the column
None of these

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