Visual Testing (VT) Practice Exam 2026 - Free VT Exam Practice Questions and Study Guide

A restraint is designed to restrict movement in specific ways. The correct answer indicates that a restraint allows for limited or no motion in one or more directions, which is key to understanding its function. Restraints are often used in various contexts, such as in medical settings to prevent patients from moving in ways that could harm themselves or in automotive applications to keep passengers secure during travel. Therefore, the definition of a restraint inherently implies that it diminishes movement, rather than allowing expansive or thermal movement, which are not associated with the primary function of a restraint.

The other options suggest different types of movement that either contradict the purpose of a restraint or do not align with its intended use, emphasizing the necessity for clarity around what a restraint actually accomplishes. This highlights the importance of understanding restraints in their relevant contexts, where limiting motion is crucial for safety and control.