During a test lift of a man basket, how long must the lift be maintained?

The correct answer is based on safety protocols defined for testing lifts involving personnel. Maintaining the lift for a duration of 5 minutes ensures that the man basket, along with its contents, is adequately assessed for stability and operational integrity under load. This time frame allows for observation of the equipment's performance, including checking for any unforeseen shifts or issues that could arise when the basket is elevated.

The 5-minute duration is a standardized practice aimed at ensuring that all potential flexibilities or mechanical issues can be identified before personnel rely on the basket for their safety during actual operations. This precautionary measure is vital to prevent accidents and ensure the reliability of the crane operation when lifting personnel.