HAZWOPER 40. Lesson 18 Quiz Questions and Answers Latest Updated

HAZWOPER 40. Lesson 18 Quiz Questions and Answers Latest Updated The federal body that first issued the Excavation and Trenching Standard in 1971 is known as (blank). OSHA Any man-made cut, cavity, or depression in the earth's surface is referred to as a(n) (blank). If an employee has to wear a lifeline in an excavation, an observer must be present to ensure that: The lifeline is working properly at all times and communication with the employee is maintained The allowance width limit of a trench is how many feet? 15 Working under loads handled by lifting or digging equipment should be (blank). Prohibited Excavations greater than four feet that have a potential for oxygen deficiency or other hazardous atmospheric conditions must be inspected by a(n) (blank) before a worker is allowed to enter. Competent person Which of the following is an OSHA guideline with respect to employee safety while installing support systems? Ensure that the members of the support systems are securely connected Before finalizing a bid, the contractor should consider which of the following site conditions? All of the above After excavation work is completed, the excavation itself must be (blank). The design of a protective system depends on many factors including: Soil classification and depth of the cut The design of a protective system depends on many factors including: