Final answer:
The claim that positioning lanyards can only be used as fall restraint devices is false, as they are not designed for fall arrest. For fall arrest, special equipment is used. The provided reference questions have answers that are false, true, and true.
Step-by-step explanation:
The statement that positioning lanyards are used only as fall restraint devices and may not be used as fall arrest devices is false. Positioning lanyards are indeed used to hold a worker in place while they work at a height, essentially restraining them to prevent falls. However, these lanyards are not designed to arrest a fall after it occurs. For fall arrest, different equipment is required, specifically designed to safely stop a fall in progress and dissipate the forces involved.
Regarding questions that were provided as reference but are incomplete, here are the answers:
The high-voltage wires that you see connected to tall metal-frame towers are not wrapped in an insulating material. This statement is false. The wires are typically bare and supported by insulating connectors or insulators.
When two teams are engaging in a tug-of-war and the rope suddenly snaps, it implies that the force of tension in the rope exceeded its breaking strength. The forces involved prior to snapping were equal and opposite.
It is true that tension is the result of opposite forces in a connector that pulls each point of the connector apart in the direction parallel to the length of the connector. At the ends of the connector, the tension pulls toward the center of the connector.