Answer :
Final answer:
The correct operating pressure for most brake lines is around 1500 psi and should generally not exceed 3000 psi, corresponding to option (b). Such systems rely on principles of hydraulics and Pascal's Principle, making it essential to maintain brake lines well within their design limits.
Explanation:
The question pertains to the optimal and maximum operating pressures for brake lines in a hydraulic system. While specific values can vary depending on the design of the braking system, a common range for many vehicles is around 1500 psi for optimal operation and should not exceed 3000 psi. Therefore, the correct answer would be (b) 1500 psi, 3000 psi.
Hydraulic systems, such as those used in vehicle brakes, function based on Pascal's Principle. The pressure applied to a confined fluid is transmitted undiminished in all directions and acts with equal force on equal areas. Therefore, the design and maintenance of brake lines are crucial to ensure they can withstand the necessary pressures without failure.
