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Chemical Engineering - Process Equipment and Plant Design

Exercise : Process Equipment and Plant Design - Section 8
11.
In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by __________ times the hole diameter.
two
five
ten
twenty
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
What is the slope of the feed line, if the feed to a distillation column is a saturated liquid ?
0
∞
> 1
< 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Filtration rate is affected by the
pressure drop across the cake & filter medium.
cake & filter medium resistance.
area of filtering surface & the viscosity of filtrate.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Liquid gradient over a tray can be minimised by
providing a higher skirt clearance or a higher weir.
decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must flow.
using split flow, radial flow or cascade flow for column diameter large than 4 ft.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes
are easier to clean.
are less prone to fouling.
can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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