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Process Equipment and Plant Design

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

6
34
24
18

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Process Equipment and Plant Design
For identical operating conditions, the pressure drop over __________ tray is the highest out of the following.

Bubble cap
Sieve
Valve
Counterflow

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Process Equipment and Plant Design
Steam economy is defined as the amount of evaporation per unit amount of steam used, while the capacity is the total evaporation obtained per hour. Use of multiple effect in evaporation

Increases economy
Increases capacity
Both B & C
Does not affect the capacity

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Process Equipment and Plant Design
__________ liquor is best handled in a long tube vertical evaporator.

Viscous
Salting
Scaling
Foamy

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Process Equipment and Plant Design
Filtration rate is affected by the

Cake & filter medium resistance
Pressure drop across the cake & filter medium
All of these
Area of filtering surface & the viscosity of filtrate

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

Both B and C
Less than that for Tee (used as elbow, entering run)
Around 90
More than that for Tee (used as elbow, entering run)

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