Safety Trained Supervisor in Construction (STSC) Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Safety Trained Supervisor in Construction (STSC) Test. Study with flashcards and multiple-choice questions with detailed explanations. Get ready for your exam success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


When encountering unknown chemicals or potential asbestos-containing materials, what should a supervisor do initially?

  1. Continue working until more information is gathered

  2. Ask the crew to investigate further

  3. Stop work and have crew leave area

  4. Contact a hazardous materials expert on-site

The correct answer is: Stop work and have crew leave area

Stopping work and having the crew leave the area is the most appropriate initial action when encountering unknown chemicals or potential asbestos-containing materials. This precaution is essential for ensuring the safety and health of all workers on the site. Unknown substances can pose serious health risks, including respiratory problems, chemical burns, or long-term exposure effects. By halting work and evacuating the area, the supervisor helps to prevent potential exposure to hazardous materials, allowing for a safer environment until a proper assessment can be conducted. This action enables the supervisor to evaluate the situation thoroughly and ensure that appropriate measures, such as testing for hazardous substances or asbestos, can be undertaken without risk to personnel. Immediate action is a crucial aspect of safety management, particularly in construction environments where the presence of unknown materials can lead to serious health and safety violations. In contrast, continuing work or asking the crew to investigate further would expose workers to unnecessary risks. Contacting a hazardous materials expert is certainly a necessary step to follow but should only occur after ensuring that the area is secure and workers are safe. Hence, the priority should always be to protect the health and safety of the crew first.