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Process Equipment and Plant Design

Process Equipment and Plant Design
Nominal size of a pipe is an indication of its __________ diameter.

None of these
Inner
Approximate
Outer

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Process Equipment and Plant Design
If 'D' is the inside diameter of the shell of a shell and tube heat exchanger, then the baffle spacing is usually in the range of

D/5 or minimum 2" to 5D
D/2 or minimum 2" to 5D
None of these
D/5 or minimum 2" to D

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Process Equipment and Plant Design
In packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing.

750-1000
25-50
50-75
200-250

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Process Equipment and Plant Design
With increase in pressure drop (for a given particle size), the dust collection efficiency of a cyclone separator will

Remain unaffected
Increase or decrease depending on the nature of the dust
Decrease
Increase

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Process Equipment and Plant Design
Pressure differential maintained across a continuous rotary vacuum filter is in the range of __________ mm Hg column.

50 to 100
250 to 500
100 to 150
600 to 700

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

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

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