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Process Equipment and Plant Design

Process Equipment and Plant Design
In the design of a bag filter, the gas temperature is an important consideration, as it affects the

Gas viscosity
Gas density
Fibre selection
All of these

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

Eddy diffusivity = 0
Laminar flow
Complete back mixing
Plug flow

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Process Equipment and Plant Design
For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used?

0.9
0.8
1
(0.8)0.5

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Process Equipment and Plant Design
Le/D for a Tee (used as elbow, entering run) would be around

200
60
5
350

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Process Equipment and Plant Design
The minimum tray spacing in distillation column of diameter less than 3 ft is normally __________ inches.

18
24
34
6

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Process Equipment and Plant Design
Cooling water fouling factors vary in the range of 0.001 to 0.003

(W/m².°K)⁻¹
(kcal/hr.m² .°C)⁻¹
(kcal/hr. m. °C)⁻¹
(BTU/hr.ft² . °F)⁻¹

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