What information must you know regarding the load before using a hoisting device?

Understanding the weight of the load and the capacity of the hoisting machine is crucial for safe and effective operation. Knowing the weight of the load ensures that the hoisting device is not overloaded, which can lead to equipment failure, accidents, and potential injury. Additionally, it's necessary to understand the machine's capacity to ensure it can handle the specific load safely. This knowledge protects the operator, crew, and equipment.

Other aspects, such as aesthetic features of the load or assessing its potential environmental impact, do not directly affect the safety and operational efficiency of using a hoisting device. Similarly, the duration of time a load has been stored is not relevant to its safe movement or the capabilities of the hoisting equipment. Hence, focusing on the weight and the machine's capacity is essential for proper hoisting practice.