Water And Wastewater Engineering Set 9

Civil Engineering

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This set of Water and Wastewater Engineering Multiple Choice Questions & Answers (MCQs) focuses on Water And Wastewater Engineering Set 9

Q1 | After cleaning a slow sand filter, the filtered water is not used for
Q2 | The efficiency of sedimentation tank does not depend upon
Q3 | Velocity of flow of water in plain sedimentation water tank, is normally kept
Q4 | The depth of the water table at a place is 45 m below the general ground level. To lift waterfrom a deep tube well in such a locality, the type of pump to be installed is
Q5 | In a well planned city, the layout of distribution pipes generally adopted, is
Q6 | Pick up the incorrect statement from the following:
Q7 | Pick up the incorrect statement from the following:
Q8 | As per IS : 1172-1963, water required per head per day for average domestic purposes, is
Q9 | The duration of contact of chlorine with water before it is served to the first consumer, shouldbe at least
Q10 | Water supply system includes
Q11 | The maximum pressure to which a pipe is subjected to during its operation, is known
Q12 | For the same draw down in two observations wells at distances r1 and r2, the times after startof pumping are t1 and t2 hours respectively. The relation which holds good is
Q13 | A slow sand filter is cleaned if its filter head is higher than
Q14 | The intake opening is generally covered by a screen to prevent entry of debris etc. and its levelis kept
Q15 | If four fires break out in a city of population 40 lakhs and if each hydrant has three streams andduration of each fire is four hours, the total quantity of water required, is
Q16 | Steel pipe are
Q17 | When gravity and pumping systems of water distribution are adopted, the type of distributionreservoir, is
Q18 | The force which develops in a pressure conduit supported on trestles, is
Q19 | Standard unit of turbidity of water is in one litre of distilled water, one milligram of finelydivided
Q20 | For complete stabilisation of organic matter in polluted water, it takes
Q21 | If intensity of rainfall in cm per hour is I, percentage coefficient of run-off is P, area of catchmentin square kilometres is A, the total run-off Q, is given by
Q22 | Shales are
Q23 | The best process of disinfection of public water supply, is by
Q24 | The dilution ratio at which the odour is hardly detectable is generally called threshold odournumber and for public supplies it should not exceed
Q25 | Surge tanks are used
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