The following data are given for a channel-type grit chamber of length 7.5 m. 1. flow-through velocity = 0.3 m/s 2. the depth of waste water at peak flow in the channel = 0.9 m Pw = 3. specific gravity of inorganic particles = 2.5 4. g = 9.80 m/s², μ = 1.002 x 10-³ N-s/m² at 20°C, pw 1000 kg/m³ Assuming that the Stoke's law is valid, the largest diameter particle that would be removed with 100 per cent efficiency is (b) 0.21 mm (a) 0.04 mm (d) 6.64 mm (c) 1.92 mm
The following data are given for a channel-type grit chamber of length 7.5 m. 1. flow-through velocity = 0.3 m/s 2. the depth of waste water at peak flow in the channel = 0.9 m Pw = 3. specific gravity of inorganic particles = 2.5 4. g = 9.80 m/s², μ = 1.002 x 10-³ N-s/m² at 20°C, pw 1000 kg/m³ Assuming that the Stoke's law is valid, the largest diameter particle that would be removed with 100 per cent efficiency is (b) 0.21 mm (a) 0.04 mm (d) 6.64 mm (c) 1.92 mm
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![The following data are given for a channel-type
grit chamber of length 7.5 m.
1.
2.
flow-through velocity = 0.3 m/s
the depth of waste water at peak flow in
the channel = 0.9 m
4.
Pw
=
3. specific gravity of inorganic particles = 2.5
g = 9.80 m/s², μ = 1.002 x 10-³ N-s/m² at
20°C, pw 1000 kg/m³
Assuming that the Stoke's law is valid, the
largest diameter particle that would be
removed with 100 per cent efficiency is
(b) 0.21 mm
(a) 0.04 mm
(d) 6.64 mm
(c) 1.92 mm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc3e35b07-4b35-4b5c-9d82-cf85e2b1ef22%2F2d3b0a79-d52c-4648-8462-a940cdf5b747%2Fkr3b1jt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The following data are given for a channel-type
grit chamber of length 7.5 m.
1.
2.
flow-through velocity = 0.3 m/s
the depth of waste water at peak flow in
the channel = 0.9 m
4.
Pw
=
3. specific gravity of inorganic particles = 2.5
g = 9.80 m/s², μ = 1.002 x 10-³ N-s/m² at
20°C, pw 1000 kg/m³
Assuming that the Stoke's law is valid, the
largest diameter particle that would be
removed with 100 per cent efficiency is
(b) 0.21 mm
(a) 0.04 mm
(d) 6.64 mm
(c) 1.92 mm
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