1.
The rated load capacity for three-person scaffolding is 250 pounds placed at the center of the span and 250 pounds placed 18 inches to the left and right of the center of the span (total 750 pounds)
Correct Answer
A. Ture
Explanation
The explanation for the given answer is that the rated load capacity for three-person scaffolding is indeed 250 pounds placed at the center of the span and 250 pounds placed 18 inches to the left and right of the center of the span. This means that the total load capacity for the scaffolding is 750 pounds. Therefore, the answer is true.
2.
Which one of the following are scaffolding access requriements?
Correct Answer
E. All the above
Explanation
The correct answer is "All the above." This means that all of the given statements are scaffolding access requirements. These requirements include having safe access, ensuring that the bottom access rung is not more than 24" high, having rest platforms at 35-foot intervals, and being able to use some end frames for access.
3.
At the start of each shift you must have a daily inspection of the scaffolding
Correct Answer
A. True
Explanation
It is necessary to conduct a daily inspection of the scaffolding at the start of each shift to ensure its safety and stability. This helps identify any potential hazards or damages that may have occurred since the last inspection and allows for timely repairs or adjustments to be made. Regular inspections are crucial in preventing accidents and maintaining a secure working environment for the workers. Therefore, the answer is true.
4.
The OSHA approved laminated planks must have a 6" minimum and 12" maximum overlap
Correct Answer
A. True
Explanation
OSHA (Occupational Safety and Health Administration) has set standards for the use of laminated planks, which require a minimum overlap of 6 inches and a maximum overlap of 12 inches. This ensures that the planks are securely connected and reduces the risk of accidents or falls. Therefore, the statement "The OSHA approved laminated planks must have a 6" minimum and 12" maximum overlap" is true.
5.
For scaffold platform construction you must have all the following
Correct Answer
E. All the above
Explanation
The correct answer is "All the above." This means that for scaffold platform construction, you must have all of the following: platforms fully planked or decked, not more than 1-inch gaps, maximum openings of 9.5-inches, and scaffold platforms and walkways that are at least 20-inches wide.
6.
You do not want to distribute the loads over the support
Correct Answer
B. False
Explanation
The statement "You do not want to distribute the loads over the support" is false. When distributing loads over the support, it helps to evenly distribute the weight or force applied to the support, which can prevent structural damage or failure. By distributing the loads, it reduces the stress on any single point or area, making the structure more stable and secure. Therefore, it is generally desirable to distribute the loads over the support.
7.
You wanna make sure and not have more than 1/2 of the screw jack exposed
Correct Answer
A. True
Explanation
To ensure stability and proper functioning of a screw jack, it is important to not have more than half of the screw jack exposed. This is because having more than half exposed would lead to an imbalance and reduce the stability of the jack, making it prone to tipping over or collapsing under heavy loads. Therefore, it is necessary to keep the screw jack properly supported and ensure that no more than half of it is exposed to maintain its stability and safety.
8.
The cross brace may be used as a handrail if the pivot point is 38"-45" on platforms manufactured after 01/01/00
Correct Answer
A. True
Explanation
The cross brace on platforms manufactured after 01/01/00 can be used as a handrail if the pivot point is between 38" and 45". This means that the cross brace is designed and positioned in a way that allows it to serve as a handrail within this specific range.
9.
You wanna make sure that you are not more than 16" from the face of the work
Correct Answer
B. False
Explanation
The statement suggests that it is not necessary to be within 16" from the face of the work. Therefore, the correct answer is False.
10.
Accident prevention methods for foot and vehicle traffic are
Correct Answer
E. All the above
Explanation
The correct answer is "All the above" because accident prevention methods for foot and vehicle traffic include controlling on-site vehicles, controlling unauthorized personnel, controlling subcontractors, and posting signs and barricades. By implementing all of these measures, the risk of accidents can be minimized and the safety of both pedestrians and vehicles can be ensured on the site.