WBPSC AE (MCD) 1998
⭕ A. Flanged joint
⭕ B. Socket and spigot joint
⭕ C. Dresser coupling joint
⭕ D. All of the above
📚 Explanation:
Cast iron pipes commonly use all three types of joints:
🔹 Flanged joint – Used for high-pressure flow and large diameter pipes. Two flanges are bolted together to prevent leakage.
🔹 Socket and spigot joint – Traditional and widely used for CI pipes.
🔹 Dresser coupling joint – Provides flexibility and easy maintenance.
Cast iron pipes commonly use all three types of joints:
🔹 Flanged joint – Used for high-pressure flow and large diameter pipes. Two flanges are bolted together to prevent leakage.
🔹 Socket and spigot joint – Traditional and widely used for CI pipes.
🔹 Dresser coupling joint – Provides flexibility and easy maintenance.
👉 Therefore, the correct answer is: D. All of the above
Key Points on Cast Iron Pipe Joints:
- Flanged joints: Used for high pressure and large diameter lines.
- Socket & spigot joints: Traditional joint for CI pipes.
- Dresser coupling: Provides flexibility and ease of assembly.
