WBPSC AE (MCD) 1998
⭕ A. P.V.C. pipes
⭕ B. Lead pipes
⭕ C. Galvanized iron pipes
⭕ D. Cast iron pipes
📚 Explanation:
For water supply to residences, Galvanized iron (GI) pipes are commonly used due to their durability and corrosion resistance.
🔹 GI pipes are economical and easy to install.
🔹 They are suitable for domestic water supply connections.
🔹 Lead pipes are avoided due to health hazards.
🔹 Cast iron pipes are used for mains, not for individual house service connections.
For water supply to residences, Galvanized iron (GI) pipes are commonly used due to their durability and corrosion resistance.
🔹 GI pipes are economical and easy to install.
🔹 They are suitable for domestic water supply connections.
🔹 Lead pipes are avoided due to health hazards.
🔹 Cast iron pipes are used for mains, not for individual house service connections.
👉 Therefore, the correct answer is: C. Galvanized iron pipes
Key Points on Residential Water Supply Pipes:
- GI pipes: Most commonly used for domestic water connections.
- Lead pipes: Avoided due to toxicity.
- PVC pipes: Used indoors but not typically for service connections from mains.
- Cast iron pipes: Used for mains, not house connections.
