What is a disadvantage of cast iron soil pipes?

• A. They are lightweight and flexible
• B. They have high tensile strength
• C. They are very heavy and easily broken
• D. They are resistant to corrosion

Answer: (C)

Cast iron soil pipes are known for their durability and strength, but one significant disadvantage is that they are very heavy, making them difficult to handle and install. This weight can create challenges during transportation and installation processes, requiring additional manpower or equipment. Additionally, while cast iron pipes are quite robust, they are also prone to breaking or cracking if subjected to excessive force or improperly handled during installation. This characteristic can lead to issues such as leaks or failures in the plumbing system if the pipes are not supported correctly or if they are subjected to thermal expansion and contraction.

The other characteristics of cast iron, such as being resistant to corrosion or having high tensile strength, highlight its positive aspects but do not address the challenges of handling and installation associated with its weight. Additionally, being lightweight and flexible is not a feature of cast iron soil pipes; in fact, they are quite the opposite, contributing to the complexity of working with them in practical applications.