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PPSC CE_QUIZ 3
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Question 1
Which of the following removes hardness completely
Question 2
A flash mixer of 2 m3, with a velocity gradient of mixing mechanism equal to 400s-1 and fluid absolute viscosity of 0.002 N-s/m2 is continuously operated. What is the power input required?
Question 3
For a grit channel, if the recommendation flow velocity is 0.25 m/s and the detention period is 1.2 minute, then the length of tank is
Question 4
In water treatment, the manual screens are kept inclined at an angle of
Question 5
Which of the following represents the approximately overflow rate (liters/hours/m2) for the plain sedimentation tank?
Question 6
Chlorine usage in the treatment of 20000 cumecs of water per day is 8 kg. The residual after 10 minute contact is 0.15 mg/l. The chlorine dosage and demand of water in mg/l are respectively:
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AE & JE ExamsApr 18AE & JE Exams