A. odour
B. bacterias
C. turbidity
D. colour
Correct Answer: bacterias ✔
Last Updated: January 20, 2019
Related MCQs
- The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is__________?
- Time of concentration__________?
- In slow sland filters, the turbidity of raw water can be removed only up to__________?
- Acidity in water is caused due to__________?
- Corrosion of well pipes may not be reduced by__________?
- The maximum depth of sedimentation tanks is limited to__________?
- For determining the velocity of flow of underground water, the most commonly used non-empirical formula is__________?
- The specific retention is least in case of__________?
- The factor affecting per capita demand, is__________?
- According to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for__________?
- The underground sources of water, is from__________?
- The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level__________?
- The least thickness of class B cast iron (spun) pipe, is__________?
- By boiling water, hardness can be removed if it is due to__________?
- Asbestos pipes are __________?
- In distribution pipes, drain valves are provided at__________?
- Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be__________?
- Surge tanks are used__________?
- Average annual rainfall at any station is the average of annual rainfall over a period of__________?
- Sunlight__________ ?
- The yield of a rapid gravity filter as compared to that of slow sand filter, is__________?
- The fire demand of a city may be worked out by __________?