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Process Equipment and Plant Design

Process Equipment and Plant Design
The minimum baffle height should be

Twice the tank diameter
3/4 of the tank height
Equal to the impeller diameter
Twice the impeller diameter

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Process Equipment and Plant Design
The retention time of material in a rotary dryer depends upon its

Slope & length
Rpm
Flights arrangement
All of these

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Process Equipment and Plant Design
In a multiple effect evaporator system having 'n' effects, the amount of water evaporated per unit surface area in approximately equal to __________ times that in a single effect.

(1/n)th
nth
1.5 nth
0.5 nth

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Process Equipment and Plant Design
For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness?

Flat plate
Conical
Ellipsoidal (2 : 1)
Hemispherical

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Process Equipment and Plant Design
In a distillation column, minimum clearance to be maintained betweeen the overflow weir and the last row of the bubble caps is __________ cms.

2.5
20
15
7.5

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

8
80
180
1

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