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An accumulator system with a 3000 psi system pressure and a 1300 psi minimum operating pressure should have what precharge psi?

A. 1000 psi
B. 1100 psi
C. 900 psi

Answer :

Final answer:

For an accumulator system with a system pressure of 3000 psi and a minimum operating pressure of 1300 psi, the precharge pressure should be the closest value less than 90% of the minimum operating pressure, which is 1100 psi. Therefore option a. is correct answer.

Explanation:

The precharge pressure in an accumulator system is crucial for the efficient operation of a hydraulic system. Considering an accumulator system with 3000 psi system pressure and a 1300 psi minimum operating pressure, the precharge psi should be appropriately set. It is generally recommended that the precharge pressure be about 90% of the minimum operating pressure. In this case, 90% of 1300 psi is 1170 psi. However, since this value is not among the options provided, the closest value that is less than the minimum operating pressure would be the correct answer. Thus, the precharge pressure should be 1100 psi (option b), which is the closest to but less than the actual precharge pressure calculated.

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