After cleaning a slow sand filter, the filtered water is not used for 6 hours to

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Question
After cleaning a slow sand filter, the filtered water is not used for
Options
A. 6 hours to 12 hours
B. 12 hours to 18 hours
C. 18 hours to 24 hours
D. 24 hours to 36 hours
E. 48 hours.

Correct Answer

24 hours to 36 hours

More questions

1. Keeping breadth constant, depth of a cantilever of length l of uniform strength loaded with uniformly distributed load w varies from zero at the free end and
Options
A. at the fixed end
B.
C.
D. at the fixed end

2. The technique for establishing and maintaining priorities among the various jobs of a project, is known
Options
A. Event flow scheduling technique
B. Critical ratio scheduling
C. Slotting technique for scheduling
D. Short interval scheduling.

5. The strength and quality of concrete, depend upon:
Options
A. grading of aggregates
B. surface area of aggregates
C. shape of aggregates
D. surface texture of aggregates
E. all the above.

6. Staff readings on pegs x and y from X station are 1.755 m and 2.850 m, and from station Y on staff head at Y and X are 0.655 m and 1.560 m. If reduced level of X is 105.5 m, the reduced level of Y is
Options
A. 104.0 m
B. 104.5 m
C. 105.0 m
D. 105.5 m

7. In the method of condensation polymerization,
Options
A. low-molecular substances are removed from the high molecular substance
B. the reaction proceeds with an evolution of ammonia
C. the reaction proceeds with an evolution of hydrogen chloride
D. all the above.

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