Using a safety factor of five, determine what is the safe working load for 3-1/2 inch manila line with a breaking stress of 4.9 tons.

Correct Answer: Option B — 0.98 ton

Safe Working Load (SWL) is calculated by dividing the breaking strength by the safety factor. Here, 4.9 tons divided by a safety factor of 5 equals 0.98 tons. This standard practice ensures equipment remains well within its elastic limit to prevent catastrophic failure during routine deck operations.