Final answer:
Setting and communicating high expectations for work task safety falls under the 'inspirational motivation' dimension of transformational leadership, which involves leaders inspiring their team around a shared vision.
Step-by-step explanation:
Setting and communicating high expectations for safe performance of work tasks is associated with the dimension of transformational leadership known as inspirational motivation. Transformational leaders with this quality articulate a vision that is appealing and inspiring to followers. Leaders who demonstrate inspirational motivation rally their team around a shared vision, ensuring that everyone understands and strives towards high standards, which include safety and performance goals.