Elevator Mechanic Practice Exam

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For a hydraulic elevator, which component stores the excess hydraulic fluid displaced when the elevator car descends?

  1. Accumulator

  2. Hydraulic tank

  3. Piston

  4. Reservoir

The correct answer is: Reservoir

The correct answer is the accumulator. An accumulator is a specific component in hydraulic systems designed to store excess hydraulic fluid that is displaced when the elevator car descends. It serves to accommodate the fluid that is forced out of the cylinder as the elevator car moves down, thus maintaining appropriate system pressure and function. While a reservoir could also be mentioned in contexts discussing hydraulic fluid storage, its primary role differs from that of the accumulator. Reservoirs mainly hold a reserve of hydraulic fluid for the system, but they do not specifically function to accommodate displaced fluid during the descent of an elevator car. Therefore, the accumulator is specifically engineered for the pressures and flows associated with the operation of hydraulic elevators, making it the correct choice in this scenario.

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