Question 398General Subjects - Assistant Engineer

The correct answer is C) 48 gpm. To calculate the capacity of the pump, we can use the formula: Capacity (in gallons per minute) = (Piston Displacement) x (Strokes per Minute) x (Volumetric Efficiency) Where: - Piston Displacement = (π/4) x (Diameter^2) x (Stroke) - Strokes per Minute = 140 - Volumetric Efficiency = 94% Plugging in the values: - Piston Displacement = (π/4) x (3^2) x 12 = 85.03 cubic inches - Strokes per Minute = 140 - Volumetric Efficiency = 94% Capacity = (85.03 cubic inches) x (140 strokes/minute) x (0.94) / (231 cubic inches/gallon) = 48 gpm The other options are incorrect because they do not match the calculated capacity of 48 gpm.