4. A 75 mm diameter fire hose discharges water through a nozzle having a jet diameter of 25 mm. The lost head in the nozzle is 20% of the velocity head in the jet. If the pressure at the base of the nozzle is 725 KPa: compute the discharge in m³/min; the maximum horizontal range to which the stream can be thrown; the maximum vertical reach, and the diameter of the jet mid-height. Neglect air resistance.

4. A 75 mm diameter fire hose discharges water through a nozzle having a jet diameter of 25 mm. The lost head in the nozzle is 20% of the velocity head in the jet. If the pressure at the base of the nozzle is 725 KPa: compute the discharge in m³/min; the maximum horizontal range to which the stream can be thrown; the maximum vertical reach, and the diameter of the jet mid-height. Neglect air resistance.

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter5: Separation Processes

Section: Chapter Questions

Problem 5.6P

See similar textbooks

Similar questions

The installed venturimeter on a pipe 25cm diameter in which the maximumflow is 125 liters per second and the pressure head is 6m of water. Calculatethe minimum diameter of the throat to ensure that a negative head will beformed in it.
Water flows through a set of pipes from a reservoir to the point of use, 12.5 m below thewater surface of the reservoir. The first pipe has a diameter and length of 125 mm and 20 mrespectively. The second pipe has a diameter of 175 mm. Determine the length of the secondpipe if a flow rate of 0.065 m3/s is required at the outlet of the second pipe. The first pipehas a friction coefficient of 0.008 (Darcy) and the second pipe has a friction coefficient of0.005 (Darcy). Consider all losses.
A pump draws water from a 20 cm diam suction pipe and discharges through a15 cm diam pipe in which the velocity is 3.60 m/s. The pressure is – 34. 465 kPaat A in the suction pipe. The 15 cm diam pipe discharges horizontally into air atC. To what height h above B can the water be raised if B is 1.8 m. above A and20 hp is delivered to the pump? Assume that the pump operates at 80 %efficiency and that the frictional loss in the pipe between A and C is 3 m. Determine the inclination angle at point C for the water stream to reach a range of 50 m. Also, calculate the maximum height that the water can go from the selected datum plane.
A pump draws water from a sump through a vertical 6" pipe. The pump has a horizontal discharge pipe 4" in diameter that is 10.6 ft above the water level in the sump. While pumping 1.25 cfs, gases near the pump at the entrance and discharge read -4.6 psi and +25.6 psi, respectively. The discharge gage is 3.0 ft above the suction gage. Compute the horsepower output of the pump and the head lost in the 6" suction pipe.Answer: 10.7 hp, 2.4 ft
A cylindrical tank 1m in diameter and 6m high contains 2m of water, 1.50m of oil (specific gravity = 0.8) and air under pressure of 20 KPa. If the 10cm diameter orifice located at the vertical side is 30 cm above the bottom of the tank, find the actual discharge at the orifice if C = 0.95.
Water is being discharged from a reservoir through a turbine as shown. Determine the elevation of the water surface in the reservoir that would be required in order for the turbine to generate 56 kW of power. The head loss in the 300 mm diameter pipe is 3.125 times its velocity head and the head loss at the 600 mm diameter pipe is 0.68 times its velocity head. A 20 mm diameter steel pipe is used to drain and oil tank (SG=0.88) as shown. If the total head loss is 2.904m, find the velocity at point 2.
The energy loss between points 1 and 2 is 3.40 lb-ft/lb and the pump delivers 40 gal/min of fluid having a specific weight of 60.0 lb/ft3. What is the required hp of the pump? The inside diameter for the 2-in and 3-in schedule 40 steel pipes are 2.067 inches and 3.068 inches respectively
Calculate the required pump power since the velocity of the water in the pipe is v=1.91 m/s pwater=1000kh/m^3 μ=1.307x10^-3
If the flow of 0.10 m3/s of water (mu = 1.31 x 10-3 Pa.s) is to be maintained in the system shown, what power must be added to the water by the pump? The pipe is made of steel and is 15 cm in diameter. Neglect minor losses. TV
A pump draws water from a 20 cm diam suction pipe and discharges through a 15 cm diam pipe in which the velocity is 3.60 m/s. The pressure is – 34. 465 kPa at A in the suction pipe. The 15 cm diam pipe discharges horizontally into air at C inclined at 45 degrees. Find the maximum height and range that the water can reach if B is 1.8 m. above A and 20 hp is delivered to the pump? Assume that the pump operates at 80 % efficiency and that the frictional loss in the pipe between A and C is 3 m.
A pump is required to transfer water at the rate of 350 kg/s from an open sump to an open storage tank located 30m above the pump. The suction pipe is 350mm in diameter and 12m in length, and the delivery pipe is 550mm in diameter and 40m in length. The friction factor of the pipe system is f=0.005. Q1. Calculate the maximum height at which the pump may be placed above the sump, so that pressure at the inlet is not less than -80 kPa Q2. Calculate the energy to be supplied by the pump per unit mass of water transferred Q3. Calculate the input power required by the pump, which is 60 % efficient
A pump is required to transfer water at the rate of 350 kg/s from an open sump to an open storage tank located 30m above the pump. The suction pipe is 350mm in diameter and 12m in length, and the delivery pipe is 550mm in diameter and 40m in length. The friction factor of the pipe system is f=0.005. Q1. Calculate the maximum height at which the pump may be placed above the sump, so that pressure at the inlet is not less than -80 kPa (gauge) (m) Q2. Calculate the energy to be supplied by the pump per unit mass of water transferred (J/Kg) Q3. Calculate the input power required by the pump, which is 60 % efficient (kW)