Q. The wastewater which does not contain sewage is known as _______

View solution

Q. What are the masonry chambers constructed at suitable intervals along sewer lines called?

View solution

Q. House drainage should be laid by the side of the building.

View solution

Q. The house sewer should always be _______

View solution

Q. Rain water from roofs can be allowed to flow through the house sewers.

View solution

Q. Which of these is not an important component of house drainage system?

View solution

Q. How many traps are present based on the shape?

View solution

Q. What is the size of rain water pipe?

View solution

Q. H₂S is intoxicant in nature.

View solution

Q. _______ corrodes internal walls of sewers.

View solution

Q. H₂S gas is denser than air.

View solution

Q. H₂S gas is _______ to generate sulphuric acid.

View solution

Q. Hydrogen sulphide is formed under ______ conditions.

View solution

Q. What is the flow velocity condition required for the formation of hydrogen sulphide?

View solution

Q. What is the temperature condition required for hydrogen sulphide formation?

View solution

Q. The rate of release of H₂S is high at the points of ______

View solution

Q. What is the exposure limit of H₂S in a day?

View solution

Q. What is the limit of H₂S exposure for 30 minutes?

View solution

Q. What is the odour threshold limit of H₂S gas?

View solution

Q. What amount of H₂S causes increased eye problems?

View solution