48. In a trench which is 4.5 feet deep, ladders are REQUIRED at NOT more than how many feet of lateral travel for means of egress?
Answer: D
Ladders are required at not more than 25 feet of lateral travel for means of egress in a trench 4.5 feet deep.
In a trench that is 4.5 feet deep, the regulations specify that ladders must be placed at intervals not exceeding 25 feet for safe egress.
A) 10 feet.
This option is incorrect because it suggests a much shorter distance for ladder placement than what is required. While having ladders closer together may enhance safety, the specific regulation allows for a maximum of 25 feet of lateral travel.
B) 15 feet.
Option B is also incorrect as it proposes a distance that is shorter than the maximum allowed. Although it would still provide adequate access, the regulation clearly states that 25 feet is the limit for ladder placement.
C) 20 feet.
This option, while closer to the correct answer, is still not compliant with the specified regulation. The requirement indicates that ladders can be spaced up to 25 feet apart, making 20 feet an insufficient choice.
D) 25 feet.
This is the correct answer since it aligns with the regulation regarding the placement of ladders in trenches that are 4.5 feet deep. The stipulation clearly allows for a maximum lateral travel of 25 feet, ensuring safety while facilitating egress.
Conclusion
The correct answer is definitively right as it adheres to the established safety regulations concerning trench safety. All other options fail because they suggest distances that are shorter than the allowable maximum, which could potentially compromise safety measures in place for workers in trenches.