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PSC Civil Engg: Environmental Quiz 1
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Question 1
After which of the following treatment units, the turbidity is maximum?
Question 2
What is the rapid sand filter surface area required for filtering of 10 MLD water assuming a filtration rate of 100,000 l/m2/day?
Question 3
The energy content of a municipal solid waste is 15,000 kJ/kg (as discarded). If the moisture content of the MSW is 15% and ash content is 10%, the energy content on an ash free dry basis (in kJ/kg) is
Question 4
Consider the following statements related to ozone:
(i) Tropospheric ozone is harmful
(ii) Stratospheric ozone is beneficial
(iii) During prevalence of photochemical smog, O3 is formed
Which of the above statements are correct?
(i) Tropospheric ozone is harmful
(ii) Stratospheric ozone is beneficial
(iii) During prevalence of photochemical smog, O3 is formed
Which of the above statements are correct?
Question 5
As per manual on Sewerage and Sewage Treatment, Central Public Health and Environmental Engineering Organization, Ministry of Urban Development, Government of India, when as sewer connects with another sewer having a difference of 600 mm in level between the water lines (peak flow levels) of main line and the invert level of branch line, the connection may be provided using
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May 23ESE & GATE CE