GATE CE · 2025 · CE
Question 63: Air Pollution
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Question 63
CENAT2 marksNeeds review
A settling chamber is used for the removal of discrete particulate matter from air with following conditions. Horizontal velocity of air = 0.2 m/s; Temperature of air stream = 77°C; Specific gravity of particle to be removed = 2.65; Chamber length = 12 m; Chamber height = 2 m; Viscosity of air at 77°C = 2.1 x 10
kg/m.s; Acceleration due to gravity (g) = 9.81 m/s
; Density of air at 77°C =1.0 kg/m
; Assume the density of water as 1000 kg/m
and Laminar condition exists in the chamber.The minimum size of particle that will be removed with 100% efficiency in the settling chamber (in
m) is ______ (round off to one decimal place).Log in to check the answer
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2025CE
GATE CE 2025 · Paper 2
Civil Engineering · Original paper archive
- Section
- Civil Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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