HAZWOPER 40. Lesson 13 Quiz Questions and Answers 100% Accurate

HAZWOPER 40. Lesson 13 Quiz Questions and Answers 100% Accurate OSHA Standards prohibit excavation under sidewalks and pavement is prohibited unless an appropriately designed support system is provided or another effective method is used. True What occurs when the body is deprived of oxygen? Asphyxia In sewers and utility tunnels, where isolation is not possible, one should use written safety procedures that are approved and enforced by whom? The employer OSHA requires that (blank) or other suitable means be used to prevent surface water from entering an excavation. Diversion ditches A permit is (blank) when an emergency develops and/or an evacuation of the space is necessitated. Cancelled OSHA requires adequate means of egress within (blank) feet of lateral travel when employees are required to be in trench excavations four feet deep or deeper. 25 The three main atmospheric hazards that cause concern are oxygen depletion, flammability, and (blank). Toxicity Employers must have a permit program in place if a permit-required confined space is on-site. Before authorizing entry, the employer must do what? The chief hazard associated with excavations is: Cave-ins Atmosphere can contain flammable or toxic gases, or be depleted of or enriched in oxygen. When a condition of IDLH (immediately dangerous of life and health) exists, what must be used? Ventilation