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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum size of the raschig rings used in a packed tower is about __________ of the coloumn diameter.

1/50th
1/10th
1/30th
1/20th

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Process Equipment and Plant Design
Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to

25 cms
40% of the I.D. of the shell
I.D. of the shell
5 cms

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Process Equipment and Plant Design
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Vapour & liquid load both
Running cost of steam for reboiler
Fixed charges initially
Running cost of cooling water for condenser

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Process Equipment and Plant Design
Compensation against openings in process vessels for giving inlet and outlet connections, for providing sight glasses and manholes etc. is provided for strength and rigidity. The most efficient type of compensation is of __________ type.

Fluid in
Ring plate
Flared out
Nozzle or rim

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Process Equipment and Plant Design
Which of the following is used to set the diameter of the distillation column?

Allowable vapour velocity
Number of theorectical plates
Length of straight rectangular weir on cross-flow tray
Static submergence

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Process Equipment and Plant Design
What is the slope of the feed line, if the feed to a distillation column is a saturated liquid?

∞
> 1
< 1

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