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Process Equipment and Plant Design

Process Equipment and Plant Design
Equivalent diameter for heat transfer calculation for a duct of square cross-section having each side as 'd' will be

√(2d)
√d
√(2πd)
D

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Process Equipment and Plant Design
The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.)

-q
None of these
-q/(q-1)
-q/(1-q)

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Process Equipment and Plant Design
Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder

Has greater structural strength
Both A & B
Is easy to fabricate
Neither A nor B

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Process Equipment and Plant Design
At equal mass velocities, the values of film co-efficients for gases as compared to that for liquids are generally.

Lower
Unpredictable
Higher
Same

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Process Equipment and Plant Design
The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate.

43832
2
43834
4

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Process Equipment and Plant Design
Which of the following lengths of heat exchanger tubes are normally not used in practice?

6 metres
10 metres
0.5 metre
2.5 metres

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