Study Guide Answer Key

Here are the answers to the Feb. 22, 2021 edition of TPO's Exam Study Guide: 1. According to OSHA guidelines, at what depth is shoring absolutely required when excavating a trench?The answer to this question is C, 5 feet. Excavation and trenching safety are extremely important. Many operators and laborers have lost their lives to improper shoring or benching. Safety is also a staple on most states’ operator certification exams. According to OSHA standards, shoring is recommended when the trench or excavation site is 4 feet or deeper, OSHA requirements state that adequate protection is required if the trench is 5 feet or more. 2. What