In the illustrated system, what pressure will be indicated on the gage if the load (x) is 500 lbs (227 kg) and the piston area (y) is 0.63 sq. in. (4 sq. cm.] See illustration GS-0062.
• Pressure formula in hydraulics: Pressure = Force ÷ Area • Consistency of pressure in a closed hydraulic system (Pascal’s principle) – same pressure at the piston and at the gage • Unit awareness: pounds (lb) for force and square inches (sq. in.) for area to get psi (pounds per square inch)
• If the piston must support a 500 lb load and its area is 0.63 sq. in., what pressure in pounds per square inch is needed at that piston face? • In this closed hydraulic circuit, does the pressure at the piston differ from the pressure shown on the gage, or are they the same? Why? • After computing the pressure from Force ÷ Area, which of the answer choices most closely matches your calculated value?
• Write and use the formula clearly: P = F ÷ A, with F in pounds and A in square inches • Double‑check your division carefully; a small arithmetic slip will move you to the wrong multiple‑choice option • Compare your final number to the choices and confirm the units are psi, not kg/cm², when picking the best match
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