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Process Equipment and Plant Design

Process Equipment and Plant Design
Larger depth of liquid on the trays of a distillation column

Both A & B
Leads to high tray efficiency
Neither A nor B
Results in higher pressure drop per tray

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Process Equipment and Plant Design
Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C.

15000
7500
1250
2500

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Process Equipment and Plant Design
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise.

600
1500
300
1000

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Process Equipment and Plant Design
Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always

Less than arithmetic mean value
More than geometric mean value
Both B & C
More than arithmetic mean value

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Process Equipment and Plant Design
25 per cent cut segmental baffle means that the baffle

Height is 75% of the I.D. of the shell
Height is 25% of the I.D. of the shell
Spacing is 75% of its height
Width is 25% of its height

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Process Equipment and Plant Design
Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is

More
Less
Cither A or B; depends upon the I.D. of the pipe
Same

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