OSHA 10 Lesson Assessment 7 answers
submerged soil or soil from which water is freely oozing may be classified as __ soil -
answer Type C
___ soil has a high clay content and is very durable and strong - answer cohesive
Which method of protection involves vertical sidewalks with horizontal struts? - answer
Trench Box
Which of the following is an example of the dangers posed by excavation? - answer All
of the Above
____ refers to the soil removed from an excavation. - answer Spoils
shaping a moist or wet sample of soil into a ball and rolling it into threads is called a ___
test - answer Plasticity
heaving or squeezing would be indicated by which of the following signs? - answer
bulge at the bottom
before excavation work begins, employers must - answer all of the above
Oxygen concentration in the air is considered deficient if it drops below - answer19.5%
submerged soil or soil from which water is freely oozing may be classified as __ soil -
answer Type C
___ soil has a high clay content and is very durable and strong - answer cohesive
Which method of protection involves vertical sidewalks with horizontal struts? - answer
Trench Box
Which of the following is an example of the dangers posed by excavation? - answer All
of the Above
____ refers to the soil removed from an excavation. - answer Spoils
shaping a moist or wet sample of soil into a ball and rolling it into threads is called a ___
test - answer Plasticity
heaving or squeezing would be indicated by which of the following signs? - answer
bulge at the bottom
before excavation work begins, employers must - answer all of the above
Oxygen concentration in the air is considered deficient if it drops below - answer19.5%
