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On a 7-foot platform with inside cab clearance of 6'8", what is the thickness of the cab walls?

  1. 1 inch thick

  2. 1.5 inches thick

  3. 2 inches thick

  4. 3 inches thick

The correct answer is: 2 inches thick

The correct answer is C. 2 inches thick. The cab walls are typically built to accommodate safety requirements and the structural integrity of the elevator cab. In this scenario, with a 7-foot platform and an inside cab clearance of 6'8", the thickness of the cab walls needs to be sufficient to provide stability and durability. A common standard for cab wall thickness in elevators is around 2 inches, which is why this option is the correct answer. The other options (A, B, D) do not provide the necessary thickness to ensure the safety and structural requirements for elevator cab walls in this scenario.