Which is an advantage of press fits?

• A. Simple to fabricate
• B. Capable of high torque transfer
• C. Easy to disassemble
• D. Self-tightening

Answer: (A)

The main idea being tested is how a press fit simplifies manufacturing and assembly. A press fit relies on an interference between parts, created by precise diameters so one piece can be pressed into or onto another without any fasteners. The biggest advantage is simply fabricating parts with basic machining and then joining them with a press operation. You don’t need threads, keys, set screws, adhesives, or other fastening features. That reduces tooling, part count, and assembly steps, making the process cheaper and more repeatable for production.

In practice, a pressed joint can provide a reliable, permanent connection once seated, which is why it’s favored where a strong, quiet, and clean assembly is desired.

The other statements aren’t general advantages: torque transmission through a press fit depends on surface finish and interference and isn’t inherently superior in all cases. Disassembly is typically difficult because the fit is intended to be permanent or semi-permanent. And self-tightening isn’t guaranteed; operating conditions like heat, vibration, or creep can even loosen an interference fit.