371) The type of valve, which is provided on the suction pipe in a tube-well, is

Answer Discuss in Comment

reflux valve

372) the phenolic compounds in public water supply should not be more than

Answer Discuss in Comment

0.001 ppm

373) On standard silica scale, the turbidity in drinking water should be limited to

Answer Discuss in Comment

10 ppm

374) The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about

Answer Discuss in Comment

0.05 to 0.5 ppm

375) The type of valve which Is provided to control the flow of water in the distribution system at street corners and where the pipe line intersect is

Answer Discuss in Comment

sluice valve

376) The type of valve which allows water to Flow in one direction but prevents its flow in the reverse direction is

Answer Discuss in Comment

reflux valve

377) Scour valves are provided

Answer Discuss in Comment

at every depression and dead ends to drain out the waste water that may collect there

378) correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by

Answer Discuss in Comment

TOD>COD>BOD

379) Which one of the following pairs is not correctly matched?

Answer Discuss in Comment

Check valve ... To Check water flow in all directions

380) Sewage sickness occurs when

Answer Discuss in Comment

Voids of soil get clogged due to continuous application of sewage on a piece of land

Water Supply and Sanitary

371) The type of valve, which is provided on the suction pipe in a tube-well, is

372) the phenolic compounds in public water supply should not be more than

373) On standard silica scale, the turbidity in drinking water should be limited to

374) The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about

375) The type of valve which Is provided to control the flow of water in the distribution system at street corners and where the pipe line intersect is

376) The type of valve which allows water to Flow in one direction but prevents its flow in the reverse direction is

377) Scour valves are provided

378) correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by

379) Which one of the following pairs is not correctly matched?

380) Sewage sickness occurs when

Subject Notes

Objective Box

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Copyright © | 2021 - 2026 | Civil Boss For "MCQ" and Psc Notes. All rights Reserved

Water Supply and Sanitary

371) The type of valve, which is provided on the suction pipe in a tube-well, is

372) the phenolic compounds in public water supply should not be more than

373) On standard silica scale, the turbidity in drinking water should be limited to

374) The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about

375) The type of valve which Is provided to control the flow of water in the distribution system at street corners and where the pipe line intersect is

376) The type of valve which allows water to Flow in one direction but prevents its flow in the reverse direction is

377) Scour valves are provided

378) correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by

379) Which one of the following pairs is not correctly matched?

380) Sewage sickness occurs when

Subject Notes

Objective Box

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Your Reaction

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