Answer: The correct answer is b. Shears.Shears are usually either hydraulic or flywheel operated.Hydraulic shears use hydraulic power to generate the force needed to cut through materials. They typically consist of a hydraulic cylinder that drives the cutting blade down onto the material to be cut. This hydraulic pressure allows for precise control and efficient cutting.Flywheel-operated shears, on the other hand, use the energy stored in a rotating flywheel to power the cutting process. The flywheel is connected to the cutting blade and stores energy as it spins. When the cutting action is initiated, the flywheel releases this stored energy, providing the force necessary to cut through the material.Both hydraulic and flywheel-operated shears are commonly used in industries such as metalworking, fabrication, and manufacturing, where precise and efficient cutting is required. These types of shears are often used for cutting metal sheets, plates, and other similar materials.It's important to note that power punches, band saws, and cut-off machines can also be used in various industries and have their own specific operating mechanisms. However, in the context of the given question, shears are the machines that are usually either hydraulic or flywheel operated.Explanation: Brainly AI...

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