What is the nozzle reaction from a 1" nozzle discharging a stream at 80 psi nozzle pressure?

Answer: B — 120 lbs

To find the nozzle reaction from a nozzle discharging water, you can use the formula: \[ \text{Nozzle Reaction} = 0.4 \times \text{GPM} + 0.1 \times \text{NP} \] where GPM is the gallons per minute the nozzle discharges, and NP is the nozzle pressure in psi. For a 1" nozzle, a common discharge rate is around 200 GPM when operating at standard conditions. Plugging this into the formula with a nozzle pressure of 80 psi, it would look like this: 1. Calculate the reaction due to flow: \[ 0.4 \times 200 = 80 \text{ lbs} \] 2. Calculate the reaction due to pressure: \[ 0.1 \times 80 = 8 \text{ lbs} \] 3. Combine these two values for total nozzle reaction: \[ 80 + 8 = 88 \text{ lbs} \] The above calculations direct us to verify the use of the correct method for the given psi. The correct approach to calculate nozzle reaction is with the formula related explicitly to pressure and flow quantities. In a standard practice