Final answer:
Power-operated lift trucks should be equipped with a load backrest extension and other safety features.
Step-by-step explanation:
In the context of power-operated lift trucks, every lift truck or forklift should be equipped with a load backrest extension. A load backrest extension is a device attached to the mast or carriage of a lift truck to prevent the load from shifting or falling backwards. It helps to stabilize the load and protect the operator and other workers.
Moreover, power-operated lift trucks should also have various safety features, such as seat belts, lights, mirrors, and audible warning devices. These features are important to ensure the safe operation of the lift truck and protect the operator and others in the vicinity.