PTI Level 2 Unbonded Installer & Inspector Practice Questions - PTI Level 2 Unbonded PT Installer & Inspector Certification Exam

For tendons shorter than approximately 26 feet (8 meters), why is the ±7% tolerance problematic?

Short tendons cannot be stressed at all The absolute elongation is so small that ±7% represents a very small measurement, making accuracy difficult — a fixed tolerance of ±6 mm (1/4 inch) is often used instead Short tendons have no friction losses The wedges do not work on short tendons

Correct Answer:

The absolute elongation is so small that ±7% represents a very small measurement, making accuracy difficult — a fixed tolerance of ±6 mm (1/4 inch) is often used instead

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