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Process Equipment and Plant Design

Process Equipment and Plant Design
The ratio of volumes of the mixed reactor to the plug flow reactor (for identical feed composition, flow rate, conversion, and for all positive reaction orders) is always

Equal to the order of reaction
< 1
>1
1

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Process Equipment and Plant Design
1.2 to 3.8 cms is the value of the

Skirt clearance for bubble caps
Downcomer liquid seal in case of a balanced tray design
Static submergence in case of a bubble cap tray for column operating under pressure (≥ 1 atm.)
All of these

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Process Equipment and Plant Design
Width and depth of grooves in the tube sheet holes normally are __________ inch respectively.

1/8 and 1/64
1/2 and 5
1/2 and 8
1/64 and 1/8

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Process Equipment and Plant Design
The safe height (h) to diameter (d) ratio (i.e., h/d) for liquid/petro fuel storage tank of capacity more than 45 kilolitres is less than

2
3
3.5
1

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Process Equipment and Plant Design
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.

Increase by 1.8
Decrease by 22
None of these
Increase by 21.6

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Process Equipment and Plant Design
The ratio of down take area to cross-sectional area of the tube, for calendria type evaporator ranges from

2 to 2.5
1 to 1.5
0.5 to 1
1.5 to 2

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