Overhead Crane Practice Test

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What is a key requirement for overhead cranes with more than one hoisting unit?

Must have an emergency stop button
Shall have a power removal feature
Must operate without a designated operator
Shall not exceed rated speed

The correct answer is: Shall have a power removal feature

The requirement that overhead cranes with more than one hoisting unit shall have a power removal feature is essential for safety and operational efficiency. This feature ensures that if a failure occurs in one of the hoisting units, the power can be removed from that unit without affecting the operation of the remaining unit(s). This is crucial in preventing accidents or further damage that might occur due to an uncontrolled descent or movement of the load. Having the ability to isolate power to a specific hoisting unit enhances safety protocols for both operators and nearby personnel. This requirement is particularly important in complex operations where multiple hoisting units may be lifting different loads simultaneously. While the other options contribute to operational safety and efficiency, they do not specifically address the unique needs of cranes with multiple hoisting systems as fundamentally as the power removal feature does.