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Process Equipment and Plant Design

Process Equipment and Plant Design
Welded joint efficiency in the design of chemical process equipment is taken as

0.55
0.85
0.75
0.95

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

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Process Equipment and Plant Design
In case of a continuous distillation column, increase in reflux ratio may result in the

Greater cost for the condenser coolant
Lower fixed charges for the column
Greater cost for the reboiler heat supply
All of these

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Process Equipment and Plant Design
Accidents in chemical plants are mostly due to

Faulty operating procedures
Improper layout of the equipments
Failure of equipments
Inadequate equipment design

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Process Equipment and Plant Design
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

17-34
52-68
43929
88-105

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

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

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