Question 3493 Deck General

The correct answer is C) 225 psig. At a depth of 500 feet, the pressure that the spring buoy must withstand is equal to the hydrostatic pressure at that depth. The formula for calculating hydrostatic pressure is: Pressure (in pounds per square inch, or psig) = Depth (in feet) x 0.445. Plugging in the depth of 500 feet, the calculated pressure is 500 x 0.445 = 225 psig. The other options are incorrect because they do not accurately reflect the hydrostatic pressure at a 500-foot depth. Option A (100 psig) is too low, Option B (150 psig) is also too low, and Option D (300 psig) is too high.