osha 10 hour construction: module 08 - excavations\nquestion 6 of 10\ntrench boxes or shields must be…

osha 10 hour construction: module 08 - excavations\nquestion 6 of 10\ntrench boxes or shields must be designed or approved by:\na. a registered professional engineer\nb. a competent person\nc. the site foreman\nd. a statistician
Answer
Brief Explanations:
Trench boxes or shields are important for worker safety in excavations and require engineering - level expertise for design or approval. A registered professional engineer has the necessary qualifications and legal responsibility for such designs.
Answer:
A. A registered professional engineer