Which item threads into barrel as the barrel is rotated?

Which item threads into barrel as the barrel is rotated?

• A. cable terminals
• B. barrel
• C. Turnbuckle
• D. bolt

Answer: (B)

In a turnbuckle, the central barrel has internal threads and two end fittings (the cable terminals) with external threads. When you rotate the barrel, those cable terminals thread into the barrel (one with opposite thread direction on the other end), moving in or out and changing the overall length and tension of the cable assembly. So the part that threads into the barrel as you rotate it is the cable terminals. The barrel isn’t threaded into something else in this arrangement, and the turnbuckle itself is the whole device, not the piece threading into the barrel.

In a turnbuckle, the central barrel has internal threads and two end fittings (the cable terminals) with external threads. When you rotate the barrel, those cable terminals thread into the barrel (one with opposite thread direction on the other end), moving in or out and changing the overall length and tension of the cable assembly. So the part that threads into the barrel as you rotate it is the cable terminals. The barrel isn’t threaded into something else in this arrangement, and the turnbuckle itself is the whole device, not the piece threading into the barrel.