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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

2.5
3.5
0.5
1.5

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Process Equipment and Plant Design
Le/D for a Tee (used as elbow, entering branch) would be

More than that for Tee (used as elbow, entering run)
Both B and C
Less than that for Tee (used as elbow, entering run)
Around 90

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Process Equipment and Plant Design
Tube side pressure drop in a 1-2 heat exchanger (for turbulent flow of fluids through the tubes) is about __________ times, that in a 1-1 heat exchanger having the same size & number of tubes and operated at the same liquid flow rate.

1/2
8
4
2

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Process Equipment and Plant Design
Height of the flights in the rotary drier is in the range of

0.02 to 0.05 d
0.5 to 0.6 d
0.08 to 0.12 d
0.2 to 0.5 d

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Process Equipment and Plant Design
Corrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if

Material of construction is high alloy steel
Both B & C
Wall thickness is > 30 mm
Plain carbon steel and cast iron parts are used

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Process Equipment and Plant Design
Pressure drop per tray in the atmospheric distillation column is about __________ psi.

43833
0.07 - 0.12
0.5 - 1.0
0.01 - 0.5

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