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Process Equipment and Plant Design

Process Equipment and Plant Design
Cooling water fouling factors vary in the range of 0.001 to 0.003

(BTU/hr.ft² . °F)⁻¹
(W/m².°K)⁻¹
(kcal/hr.m² .°C)⁻¹
(kcal/hr. m. °C)⁻¹

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Process Equipment and Plant Design
In distillation columns, bubble caps are held in place over trays by

A hold down bar
Both B and C
Bolts
Rivets

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

2.5 metres
10 metres
0.5 metre
6 metres

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

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

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Process Equipment and Plant Design
Two iron pipes of the same nominal diameter but different schedule numbers will have the same

Inside diameter
Outside diameter
None of these
Wall thickness

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Process Equipment and Plant Design
Ratio of tube length to shell diameter for a shell and tube heat exchanger is

8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers
Both B & C
< 4 : 1 for gas-gas exchangers
4 : 1 to 8 : 1 for liquid-liquid exchanger

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