Consider Bernoulli's equation as it applies to an incompressible fluid flowing through a horizontal pipe of varying diameter. Assume that you measure pressure and kinetic energy in the fluid along the pip in the direction of fluid flow. What happens to the sum of the pressure and energy per unit volume? a. It increases as the pipe diameter increases. b. It decreases as the pipe diameter increases. O. It remains constant as the pipe diameter increases. O d. No choices above are valid.

Consider Bernoulli's equation as it applies to an incompressible fluid flowing through a horizontal pipe of varying diameter. Assume that you measure pressure and kinetic energy in the fluid along the pip in the direction of fluid flow. What happens to the sum of the pressure and energy per unit volume? a. It increases as the pipe diameter increases. b. It decreases as the pipe diameter increases. O. It remains constant as the pipe diameter increases. O d. No choices above are valid.