Question

Which size pipe has more threads per inch?

1) 1 1/2 inches
2) 3/4 inch
3) 1 inch
4) 3/8 inch

Answer 1

The 3/8-inch pipe has more threads per inch than 1 1/2-inch, 3/4-inch, or 1-inch pipes because generally, smaller pipes have tighter and more frequent threading to ensure a secure seal.

Step-by-step explanation:

When considering which size pipe has more threads per inch, we need to understand how threads are measured on pipes. Generally, the smaller the diameter of the pipe, the more threads per inch (TPI) there will be. This is because thread spacing tends to be closer together on smaller diameters to ensure a good seal and sufficient strength of the threads.

Based on general threading standards:

• A 1 1/2-inch pipe typically has fewer threads per inch compared to smaller diameters.
• A 3/4-inch pipe will have more threads per inch than the larger 1 1/2-inch pipe.
• A 1-inch pipe will generally have fewer threads per inch than a 3/4-inch pipe but more than a 1 1/2-inch pipe.
• A 3/8-inch pipe will have the most threads per inch of the options listed here, given its smaller diameter.

Therefore, out of the sizes provided, the 3/8-inch pipe has more threads per inch compared to 1 1/2-inch, 3/4-inch, and 1-inch pipes.