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Process Equipment and Plant Design

Process Equipment and Plant Design
Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C.

7500
1250
2500
15000

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Process Equipment and Plant Design
The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.

Torispherical
Flat plate
Ellipsoidal
Hemispherical

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

Elliptical
None of these
Hemispherical
Torispherical

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Process Equipment and Plant Design
In a double pipe concentric heat exchanger, the equivalent diameter of annulus for heat transfer would be (where, D₁ and D₂ are I.D. of inner and outer pipes)

(D₂² - D₁²)/D₂²
D₂ - D₁
(D₂² - D₁²)/D₁²
None of these

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Process Equipment and Plant Design
The maximum liquid gradient over a tray must not exceed

2"-3.5"
0.5" -1.25"
Half the tray spacing
5"

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Process Equipment and Plant Design
What is the minimum recommended ligament for square pitch arrangement in case of heat exchangers?

6.5 mm
Equal to tube I.D
6.5 cms
Equal to tube O.D

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