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← TechnologyWhat unintended outcome arises when a hydraulic accumulator's pre-charge of nitrogen depletes during operation in a hydraulic press?
A)Slower cycle times and reduced force
B)Increased fluid temperature from compression
C)Premature valve failure due to backpressure
D)Elevated system noise and pressure spikes✓
💡 Explanation
When the nitrogen pre-charge decreases, the accumulator loses its ability to dampen pressure fluctuations because without the gas cushion the hydraulic fluid becomes more prone to rapid compression and decompression leading to pressure oscillations. Therefore, noise and spikes grow rather than slower cycles, temperature increase, or valve failure requiring blocked conduits or sticking spools.
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