What is a safe practice when hoisting personnel?

Using tag lines when hoisting personnel is a safe practice as they help to control the load being lifted and keep it stable during the hoisting process. Tag lines are ropes attached to the load that provide a way for workers on the ground to guide it, ensuring it remains properly oriented and avoiding swinging or uncontrolled movement that could be hazardous to personnel below.

In the context of safety regulations, tag lines are a recommended tool when lifting personnel as they significantly reduce the risk of accidents. They allow for better communication and coordination between the operator and ground crew, which is critical for safety during hoisting operations.

The other options present situations that could lead to dangerous outcomes. Wearing a helmet only when conditions are perceived as risky undermines the importance of consistent protective gear usage; helmets should be worn at all times in work environments where head injuries are a risk. Keeping the crane operating while unloading can lead to instability and increase risk of accidents, as the crane should be stationary during the unloading of personnel. Allowing unauthorized personnel on the platform poses serious safety risks as these individuals may not be trained to recognize hazards or follow safety protocols, increasing the likelihood of accidents.