55. Simpsen Manufacturing tested the hydraulic pressure capacity of 2 brands of valves, Valve A and Valve B, on their hydraulic pressure pump. Valve B allowed a slower decrease in pressure than Valve A followed by a slower increase in pressure than Valve A. The minimum pressure for Valve A was Iess than the minimum pressure for Valve B. One of the following graphs best illustrates the test results. Which graph is it ？

Answer and Explanation

Your Answer is

Correct Answer is E

Explanation

Because the decompression and pressurization process of pump B are relatively slow, the curve representing B should change the slowest at both ends, and E corresponds. Choose E.