What is a tie-off knot?

Study for the Aircraft Maintenance Technician (AMT) 40 OandP Test. Work through flashcards and multiple-choice questions, with hints and explanations for each. Prepare effectively for your exam!

Multiple Choice

What is a tie-off knot?

Explanation:
A tie-off knot is a locking knot used to secure the thread at the end of a stitched seam so the seam won’t unravel. The description here specifies using a standard, modified seine knot on every stitch except the starting one. That means after finishing the seam, you tie off the tail with this knot pattern to lock in the stitching along the entire seam, while the very first stitch isn’t tied off at the start to avoid bulky knots there. The other options describe knots for joining fabric or securing lacing, which aren’t what a tie-off knot does. So this choice correctly identifies the tie-off as a standard, modified seine knot used on all stitches except the starting stitch.

A tie-off knot is a locking knot used to secure the thread at the end of a stitched seam so the seam won’t unravel. The description here specifies using a standard, modified seine knot on every stitch except the starting one. That means after finishing the seam, you tie off the tail with this knot pattern to lock in the stitching along the entire seam, while the very first stitch isn’t tied off at the start to avoid bulky knots there. The other options describe knots for joining fabric or securing lacing, which aren’t what a tie-off knot does. So this choice correctly identifies the tie-off as a standard, modified seine knot used on all stitches except the starting stitch.

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