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Process Equipment and Plant Design

Process Equipment and Plant Design
In hydrostatic testing of welded pipe (for leakage, strength etc.) the ratio of minimum hydrostatic test pressure to internal design pressure is around

0.5
3.5
2.5
1.5

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Process Equipment and Plant Design
Liquid/petroleum fuel storage tanks are built underground (as in case of petrol pumps), when the storage capacity is less than __________ kilolitres.

85
20
30
45

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Process Equipment and Plant Design
Optimum economic pipe diameter for fluid flow is determined by the

None of these
Density of the fluid
Viscosity of the fluid
Total cost considerations (pumping cost plus fixed cost of the pipe)

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

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

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Process Equipment and Plant Design
The normal range of velocity of water in pipes is __________ m/sec.

15-30
0.1-0.5
1-2
10-50

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Process Equipment and Plant Design
At the following point for a given packing and set of fluids, the pressure drop per metre of packed height, with variation in fluid rates and operating pressure

May increase or decrease depending upon the solubility of the gas in the liquid
Decreases
Increases
Remains same

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