Safety Trained Supervisor in Construction (STSC) Practice Exam 2025 - Free STSC Practice Questions and Study Guide

On-the-job training is primarily utilized in workplaces because it enables workers to be productive while they are still learning. This approach allows employees to gain practical experience and acquire necessary skills in a real work environment, which can enhance the learning process. By engaging in actual tasks, trainees can better understand their roles and responsibilities and immediately apply what they are learning, leading to increased efficacy and confidence in their work.

The other options, while they may have some validity in specific contexts, do not capture the primary advantage of on-the-job training as effectively as this choice. For instance, while it can reduce the need for supervision to some extent as workers become more proficient, this is not the main reason for its use. Similarly, while effective training can contribute to employee morale and can indeed help minimize training costs, these factors are secondary benefits rather than the core reason for implementing on-the-job training.