The installation of ________ on hoists is prohibited.

The installation of live booms on hoists is prohibited primarily due to safety concerns. Live booms can introduce significant instability and complexities in operation. In lifting operations, the goal is to maintain maximum control and safety while handling loads. Live booms, which are often flexible, can sway or oscillate under load, increasing the risk of accidents, injuries, or damage to the hoisting equipment.

Counterweights, safety guards, and load sensors, on the other hand, are critical components that enhance safety and stability during lifting operations. Counterweights help balance the load, minimizing the risk of tipping. Safety guards protect operators and bystanders from falls or accidental contact with moving parts. Load sensors provide crucial information about the weight being lifted, helping to prevent overloading and ensure compliance with safety regulations. Therefore, the prohibition of live booms focuses on enhancing overall safety during lifting operations.