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Process Equipment and Plant Design

Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

80
8
1
180

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the problem of differential expansion between the shell and tube passes is taken care of by using a

Neither A nor B
U-bend
Floating head tube sheet
Either A or B

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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
Width is 25% of its height
Spacing is 75% of its height

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the baffles on shell side is primarily provided for

Increasing pressure drop
Fixing the tubes
Creating turbulence
Reducing scale deposition

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Process Equipment and Plant Design
Safety valves are provided in chemical equipments to guard against excessive

Pressure/pressure fluctuation
Temperature
Turbulence
Noise

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Process Equipment and Plant Design
for couplings and unions would be

350
200
Negligible
60

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