QUESTION 1
Which of the following is NOT a specification for a limited access zone during masonry wall construction?
On the unscaffolded side of the wall
Established prior to the start of construction
Equal in width to one-half the height of the wall
Run the entire length of the wall
6 points
QUESTION 2
For excavations that are more than 4 feet in depth, what is maximum allowable travel distance to the nearest safe means of egress?
10 feet
15 feet
20 feet
25 feet
6 points
QUESTION 3
In evaluating soil, if the thumb penetrates no further than the length of the thumbnail, it is probably __.
type A soil
type B soil
type C soil
layered geological strata
6 points
QUESTION 4
What is the minimum required clearance when a crane is operating in the vicinity of a 240 kV power line?
10 feet
20 feet
15 feet
25 feet
6 points
QUESTION 5
Hardware used in the lifting precast concrete must be capable of supporting __ times the intended load applied or transmitted.
QUESTION 6
Discuss hazards and precautions to be taken when operating a crane near power lines.
Your response should be at least 75 words in length.
QUESTION 7
Explain how the different types of trenching and excavation protective systems (shielding, shoring, and sloping) are selected based on construction site conditions. Also, please provide a brief description of each type of protective system in your discussion.
Your response should be at least 75 words in length.
QUESTION 8
What is the purpose of conducting an engineering survey prior to a demolition project? Describe and discuss the major components of an engineering survey for the demolition of a two-story wood structure.
Discuss the site evaluation steps that should be taken before starting an excavation project. Which step(s) are likely to contribute the most in preventing excavation injuries? Why?