4. The 35°C water shown below discharges to sea-level standard atmosphere. Sudden drops in pressure can sometimes lead to cavitation, which causes bubble formation when the pressure equals the vapor pressure of a fluid at a given temperature. At 35°C the vapor pressure (the pressure at which water begins to vaporize) for water is 0.816 psi. Neglecting losses, for what nozzle diameter D will cavitation begin to occur? Express your answer in units of inches. To avoid cavitation, should you increase or decrease D from this critical value? D 1 in 3 in D 6 ft