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QUESTION 3 HYDRAULICS AND PNEUMATICS 3.1 State THREE functions of an accumulator as it applies to hydraulic systems. 3.2 A hydraulic jack has a plunger diameter of 50 mm and a ram diameter of 200 mm . The work done by ram piston of 350 J is needed to lift a load of 2000 N . Calculate the following: 3.2.1 The load exerted on the plunger piston 3.2.2 The height moved by the ram 3.2.3 The volume displaced to the ram piston

Ask by Fernandez Todd. in South Africa
Mar 13,2025

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**3.1 Functions of an Accumulator:** 1. **Energy Storage:** Stores hydraulic energy for later use. 2. **Shock Absorption:** Absorbs pressure fluctuations and shocks. 3. **Maintaining Pressure:** Keeps system pressure constant by compensating for leaks. **3.2 Hydraulic Jack Calculations:** 1. **Load on Plunger Piston:** 125 N 2. **Height Moved by Ram:** 0.175 m 3. **Volume Displaced to Ram Piston:** Approximately 0.0055 m³

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An accumulator in hydraulic systems serves multiple purposes: it stores hydraulic energy, stabilizes system pressure during operation, and provides extra fluid to handle fluctuations in demand. Imagine it like a battery for your hydraulic system, giving it that extra boost when needed! In the real world, hydraulic jacks are commonly found in auto repair shops and construction sites to lift heavy loads safely and efficiently. They utilize Pascal's principle, where pressure applied at one point in a confined fluid is transmitted undiminished throughout the fluid, allowing a small force applied on a small area (the plunger) to lift a much larger force over a larger area (the ram). Talk about lifting with ease!

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