Q141
Open questionWhich tube arrangement in a heat exchanger would facilitate highest heat transfer rate?
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Chemical Engineering · all questionsProcess Equipment And Plant Design
Process Equipment And Plant Design
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Q142
Open questionIn the downcomer of a distillation column, the minimum recommended residence time is about __________ seconds.
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Q143
Open questionIn which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube?
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Q144
Open questionLessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.
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Q145
Open questionThe ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is
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Q146
Open questionPoisson's ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson's ratio for structural and pressure vessel steel may be taken as
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Q147
Open questionOf the pressure vessels, with same thickness but different diameters, which one withstands higher pressure?
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Q148
Open questionSteam is preferred to be used as a heating medium in heat exchangers, because of its
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Q149
Open questionTube wall thickness depends on the cor-rosiveness of the fluids and their operating pressure & temperature and is specified by Birmingham wire gauge (B.W.G)-a number which varies from 8 to 18 with the numbers 14 and 16 being more commonly used. Outside diameter of tubes varies from about 15 to 50 mm; however a tube of less than __________ mm outside diameter is generally not recommended for fouling fluids.
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Q150
Open questionThe wall thickness for a large high pressure pipeline is determined by the consideration of the
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Q151
Open question__________ of water makes it a widely used coolant in heat exchangers.
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Q152
Open questionMaximum plate efficiency is achieved in case of __________ flow.
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Q153
Open questionPick out the wrong statement.
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Q154
Open questionIn a shell and tube heat exchanger, triangular pitch arrangement as compared to square pitch arrangement
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Q155
Open questionWhat is the value of 'q' for saturated liquid feed to a distillation column?
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Q156
Open questionHigh pressure fluid in a shell and tube heat exchanger should preferably be routed through the
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Q157
Open questionRatio of tube length to shell diameter for a shell and tube heat exchanger is
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Q158
Open questionWhich of the following factors determine the amount of entrainment in a distillation column?
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Q159
Open questionA 'rupture disc' is provided in chemical equipments as an accessory meant for
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Q160
Open questionCorrosion allowance in the design of pressure vessel/chemical equipment is not necessary, if
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