Question

Match the types of water carriage system in Group-I with their corresponding functions in Group-II.

 

• A. P–2, Q–4, R–1, S–3
• B. P–2, Q–3, R–5, S–4
• C. P–1, Q–4, R–5, S–3
• D. P–1, Q–3, R–1, S–4

Hint:

Understanding the key features of water carriage systems, like whether sewage and stormwater are combined or separated, helps in selecting the right type of system for different urban settings.

Answer 1

The Correct Option is A

P (Combined system) involves rain water from roofs being allowed to enter the sewer system carrying sewage, and the remaining storm water flows separately. Hence, P–2.
Q (Vacuum sewer system) uses negative pressure in the sewer to pull sewage and air from different sources, and a pump is used to pump waste from the residences to the low-pressure sewer line. Hence, Q–4.
R (Partially separate system) refers to a system where sewage from buildings is taken in one set of sewers and storm water in another network. Hence, R–1.
S (Pressurized sewer system) involves a pump being used to pump waste from the residences to the low-pressure sewer line. Hence, S–3. Thus, the correct match is (A) P–2, Q–4, R–1, S–3.