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Process Equipment and Plant Design

Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

1000
5000
10000
3000

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Process Equipment and Plant Design
In a heat exchanger, shell side fluid velocity can be changed by changing the tube

Neither A nor B
Both A & B
Pitch
Layout

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Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

Either A or B; no generalisation can be made
More
Less
Same

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

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

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Process Equipment and Plant Design
Tubes are fixed to the tube sheet (a thick circular metallic plate) by the method of tube rolling and brazing (non-removable) or ferrule connection (removable). Thickness of the tube, sheet is normally __________ the outside diameter of the tube but in no case it should be less than 22 mm (7/8").

Three fourth
1.5 times
Half
Equal to

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Process Equipment and Plant Design
The circumferential (hoop) stress in a thin walled cylinderical vessel under internal pressure is

pd/2t
pd/3t
pd/4t
pd/t

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