Radial piston pumps are operated by a central cam that drives the pistons in and out of the cylinder. Is this statement true or false?

The statement is true because radial piston pumps operate based on the design principle that involves a central cam mechanism. This cam rotates and serves to push the pistons in and out of the cylinder, which allows the pump to intake and discharge fluids. The pistons are arranged radially around the cam, and as the cam turns, it translates rotary motion into linear motion, enabling the pistons to move in and out effectively. This mechanism is key to the functionality of radial piston pumps, making them efficient for various hydraulic applications. The operation is not limited to certain models or specific speeds, as this design is a fundamental characteristic of radial piston pumps across the board.