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EXCAVATIONS (OSHA-10) Questions and Answers Fully Solved
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EXCAVATIONS (OSHA-10)
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EXCAVATIONS (OSHA-10)Which of the following is an excavation hazard? - answer Fire, Toxic fumes,
Asphyxiation
Most excavation accidents occur at what depth? - answer5 to 15 feet.
What is the greatest risk present at an excavation site? - answer Cave-ins are the
greatest risk present at an excavation site.
What two requirements must be met so that a trench does not need to have a protective
system installed? - answer Protective systems aren't required in a trench if the
excavation is made entirely out of stable rock or it is less than five feet in depth and
examination of the ground by a competent person provides no indication of a potential
cave-in.
There are ways to protect yourself when excavating. Which of the following is a way to
protect yourself when working around excavations? - answer Slope or bench the sides
of the excavation and support the sides of the excavation.
Employees are working within an excavation that is more than 4 foot deep and cannot
safely exit the site. What is a hazard that needs to be addressed in this situation? -
answeraccess and egress
This excavation is at risk for a cave-in because the walls of the excavation are unstable.
What type of excavation protection will address this situation? - answerShoring
This excavation is at risk for cave-in and water accumulation because of the excess soil
that has accumulated. What type of excavation protection will address this situation? -
answerCorrectly placed spoils
What is the minimum distance that excavation materials, tools, and other supplies be
kept back from the excavation's edge? - answer2 Feet
At what depth must a ladder, ramp, steps, or runway be present for quick worker exit? -
answer4 feet
In order for a worker to be considered competent, they only need to have specific
training in and be knowledgeable about identifying hazards, and are authorized to
immediately eliminate hazards. Is this true or false? - answerFalse
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