Final answer:
It is true (option a) that compression joint fittings can be used both above and below ground to join copper piping. These fittings are designed for a secure and long-lasting connection in plumbing and heating systems.
Step-by-step explanation:
The question pertains to the use of compression joint fittings in joining copper piping systems. It is true that compression joint fittings can be utilized both above and below ground to join copper pipes. These fittings are designed to connect two pipes together using a compression nut, an o-ring, and a gripping ring, which are tightened to form a watertight and airtight seal that is durable and reliable.
They are commonly used in plumbing and heating systems and are suitable for a variety of applications, including those where pipes cannot be soldered.
Other Example Answers for Context
- The statement that high-voltage wires are wrapped in insulating material is false; they are typically bare and held aloft by insulating connectors.
- It is also false that Cu/Fe pipe joints lead to rapid corrosion; the actual issue is the potential for galvanic corrosion when dissimilar metals are in contact, which is why proper precautions must be taken.
- If you drop a bar magnet through a copper tube, it induces an electric current in the tube, which is true.