47. What is the MAXIMUM length a scaffolding platform of 10 feet or less may extend over its support at each end?
Answer: C
The maximum length a scaffolding platform of 10 feet or less may extend over its support at each end is 12 inches.
A scaffolding platform that is 10 feet or less in length may extend a maximum of 12 inches over its support at each end.
A) 8 inches.
This option is incorrect because it underestimates the allowable extension for a scaffolding platform. The regulations permit a greater extension than 8 inches, indicating that this choice does not meet the specified safety standards.
B) 10 inches.
This option is also incorrect as it does not reflect the maximum allowable extension. While 10 inches may seem reasonable, the regulations explicitly state that the extension can be longer, specifically up to 12 inches.
C) 12 inches.
This option is the correct answer. Regulations clearly state that scaffolding platforms of 10 feet or less may extend a maximum of 12 inches over their support at each end, ensuring stability and safety during use.
D) 18 inches.
This option is incorrect because it exceeds the maximum allowable extension for scaffolding platforms. An extension of 18 inches is unsafe and not compliant with established guidelines for scaffolding safety.
Conclusion
The correct answer is 12 inches, as it is the maximum extension permitted for scaffolding platforms of 10 feet or less, ensuring safety and structural integrity. All other options either underestimate or overestimate the allowable extension, failing to adhere to safety regulations.