Hazwoper 40: Lesson 13 Questions And
Answers With Verified Solutions 100%
Correct!!!
OSHA Standards prohibit excavation under sidewalks and pavement is prohibited
unless an appropriately designed support system is provided or another effective
method is used. - ANSWER✔✔True
What occurs when the body is deprived of oxygen? - ANSWER✔✔Asphyxia
In sewers and utility tunnels, where isolation is not possible, one should use written
safety procedures that are approved and enforced by whom? - ANSWER✔✔The
employer
OSHA requires that (blank) or other suitable means be used to prevent surface
water from entering an excavation. - ANSWER✔✔Diversion ditches
A permit is (blank) when an emergency develops and/or an evacuation of the space
is necessitated. - ANSWER✔✔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. -
ANSWER✔✔25
The three main atmospheric hazards that cause concern are oxygen depletion,
flammability, and (blank). - ANSWER✔✔Toxicity
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