What is the maximum allowable wind speed for safely operating certain hoisting machines?

The maximum allowable wind speed for safely operating certain hoisting machines is 72 km/h. This standard is established to ensure the safety of personnel and equipment during lifting operations. High wind speeds can create hazardous conditions, potentially leading to loss of control of the load, increased risk of tipping, or compromising the structural integrity of the hoisting equipment.

Operating under these wind conditions helps to minimize risks associated with airborne loads and enhances overall safety protocols. While the other options represent wind speeds that might seem manageable, they exceed the maximum threshold set for safe operations of specific hoisting equipment as defined by regulations and engineering best practices. This limit is designed to protect both operators and bystanders from the dangers associated with high winds during lifting activities.