Final answer:
A commonly used type of fuel boost pump in systems requiring hydraulic power, such as power brakes and bulldozer hydraulics, is the motorized pump.
Step-by-step explanation:
The question refers to the type of fuel boost pump used in systems requiring hydraulic assistance. A commonly used type of fuel boost pump in such systems-which include applications like power brakes in vehicles and hydraulic systems in heavy machinery like bulldozers-is the motorized pump. These motorized pumps are designed to provide the necessary hydraulic pressure that assists in operating the associated machinery or vehicle systems, reducing manual effort and enhancing efficiency. In vehicles, power brakes use a motorized pump to amplify the force applied by the driver to the brake pedal, making it easier to decelerate or stop the vehicle. Similarly, in construction equipment like bulldozers, a motorized hydraulic pump supplies the force required to move heavy components, such as the blade and ripper.