Which options are described as overload detection methods for overhead cranes?

Which options are described as overload detection methods for overhead cranes?

• A. A dynamometer attached to the crane hook
• B. An in-cab computerized digital readout
• C. Both A and B
• D. Neither

Answer: (C)

Overload detection in overhead cranes can be accomplished with either a direct load measurement or a monitored display, and often both are used together for safer operation. A dynamometer attached to the crane hook directly measures the tension caused by the load, giving an immediate readout of the actual weight being lifted. An in-cab computerized digital readout displays the load as reported by sensors and control systems, helping the operator see how close they are to the crane’s rated capacity and often triggering alarms or limiting actions if an overload is detected. Using both methods provides redundancy and a clearer safety net: the dynamometer gives a real-time, physical measurement, while the digital readout offers integrated, in-cab monitoring and warnings. Therefore, both methods are described as overload detection methods for overhead cranes. The option describing only one method is incomplete, and the option saying neither exists is incorrect because these methods are indeed used.

Overload detection in overhead cranes can be accomplished with either a direct load measurement or a monitored display, and often both are used together for safer operation. A dynamometer attached to the crane hook directly measures the tension caused by the load, giving an immediate readout of the actual weight being lifted. An in-cab computerized digital readout displays the load as reported by sensors and control systems, helping the operator see how close they are to the crane’s rated capacity and often triggering alarms or limiting actions if an overload is detected. Using both methods provides redundancy and a clearer safety net: the dynamometer gives a real-time, physical measurement, while the digital readout offers integrated, in-cab monitoring and warnings. Therefore, both methods are described as overload detection methods for overhead cranes. The option describing only one method is incomplete, and the option saying neither exists is incorrect because these methods are indeed used.