Question

which pipe fitting method involves soldering copper pipes to create a leak-proof bond?

a sweat fittings
b compression fittings
c flare fittings
d threaded fittings

Explanation:

Identify the core question

The question asks for the pipe fitting method that involves soldering copper pipes to create a leak-proof bond.

Analyze the given options

• Sweat Fittings: This method involves heating copper pipes and fittings with a torch and applying solder, which melts and is drawn into the joint by capillary action to create a permanent, leak-proof seal. This process is commonly referred to as "sweating" a joint.
• Compression Fittings: You already know about Compression Fittings, which use a compression nut and a ferrule (ring) to squeeze against the pipe to create a seal without heat.
• Flare Fittings: This method involves flaring the end of a tube outward and securing it with a nut, typically used for high-pressure applications without heat.
• Threaded Fittings: This method uses screw threads on the ends of pipes and fittings to join them together, often sealed with Teflon tape or pipe dope.

Match the method to soldering

Soldering copper pipes is specifically associated with sweat fittings (also known as soldered joints).

Answer:

• (A) Sweat Fittings (Correct answer)
• (B) Compression Fittings
• (C) Flare Fittings
• (D) Threaded Fittings