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Process Equipment and Plant Design

Process Equipment and Plant Design
Larger depth of liquid on the trays of a distillation column

Both A & B
Results in higher pressure drop per tray
Leads to high tray efficiency
Neither A nor B

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Process Equipment and Plant Design
25 per cent cut segmental baffle means that the baffle

Height is 75% of the I.D. of the shell
Height is 25% of the I.D. of the shell
Width is 25% of its height
Spacing is 75% of its height

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Process Equipment and Plant Design
__________ dished head is the strongest of all.

Torispherical
Hemispherical
Elliptical
None of these

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Process Equipment and Plant Design
In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m³ L = flow rate of dry solids, kg/see. m² drier cross-section H = hold up of solid.)

Z.H.ρ/L
Z.H/L.ρ
L/Z.H.ρ
H.ρ/L

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Process Equipment and Plant Design
The stress developed in a material without any permanent set is called the

Ultimate stress
Elastic limit
Yield stress
Breaking stress

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Process Equipment and Plant Design
Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate.

8
1/2
2
4

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