Sewerage system is designed for_______________?
B. minimum flow only
C. average flow only
D. maximum and minimum flow(Correct)
B. minimum flow only
C. average flow only
D. maximum and minimum flow(Correct)
B. minimum flow only
C. average flow only
D. maximum and minimum flow(Correct)
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Fluorosis is caused due to the presence of excessive amount of __________ in drinking water.
Question: Fluorosis is caused due to the presence of excessive amount of __________ in drinking water.
[A].mercury [B].
lead [C].
fluoride [D].
arsenic Answer: Option C
Explanation:
No answer description available for this question.
Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes
Question: Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes
[A].blood poisoning. [B].
anaemia. [C].
nervous system disorder. [D].
all (a), (b) and (c). Answer: Option D
Explanation:
No answer description available for this question.
Maximum allowable concentration of CO2 in air for safe working is __________ ppm (parts per million).
Question: Maximum allowable concentration of CO2 in air for safe working is __________ ppm (parts per million).
[A].50 [B].
1000 [C].
2000 [D].
5000 Answer: Option D
Explanation:
No answer description available for this question.
Foul odour and bad taste of water is removed by treating with
Question: Foul odour and bad taste of water is removed by treating with
[A].alum [B].
bleaching powder [C].
activated carbon [D].
copper sulphate. Answer: Option C
Explanation:
No answer description available for this question.
The pathogens can be killed by_______________?
The pathogens can be killed by_______________?A. nitrification
B. chlorination
C. oxidation
D. none of the aboveThe type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is_______________?
The type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is_______________?A. check valve
B. sluice valve
C. safety valve
D. scour valve