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Process Equipment and Plant Design

Process Equipment and Plant Design
Shell side heat transfer co-efficient in case of square pitch as compared to the triangular pitch under similar condition of fluid flow and tube size is

Less
Same
Twice
More

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Process Equipment and Plant Design
If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of

D/2 or minimum 2" to 5D
D/5 or minimum 2" to 5D
None of these
D/5 or minimum 2" to D

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Process Equipment and Plant Design
The dust collection efficiency of electrostatic precipitator increases with increase in the

Neither A nor B
Both A & B
Electrode area
Gas flow rate

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Process Equipment and Plant Design
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

A/P
4 P/A
√A
4 A/P

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

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

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

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

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