What device adjusts tension between two sling legs or hoist lines during tandem lifts?

• A. Turnbuckles
• B. Beam clamps
• C. Periodic inspection
• D. Equalizer beam

Answer: (A)

In tandem lifts you need to balance the load between two sling legs, and the tool that lets you precisely change the length—and thus the tension—of those legs is the turnbuckle. Its threaded design lets you screw in or out to shorten one leg relative to the other, bringing the two lines to equal tension and keeping the load centered and stable. This is essential to prevent one leg from taking more load than the other, which could cause sway or uneven lift.

Beam clamps are for attaching components to a beam, not for adjusting pairwise tension. Periodic inspection is about checking equipment safety and condition, not adjusting tension during a lift. An equalizer beam helps distribute weight among multiple legs but doesn’t actively tweak tension after setup; it shares load more evenly but doesn’t provide the fine-length adjustment you get with a turnbuckle. The turnbuckle’s screw mechanism is specifically for adjusting line length and tension, making it the best choice for balancing tandem lifts.