A fire pump delivers water through a 300 mm diameter main to a hydrant to which is connected a cotton rubber lined fire hose 150 mm in diameter terminating to a 25 mm diameter nozzle. The nozzle is 2.5m above the hydrant and 16m above the pump. Assuming frictional losses of 3m from the pump to the hydrant, 2m in the hydrant, 10m from the hydrant to the base of the nozzle, and the loss in the nozzle of 4% of the velocity head in the jet, to what vertical height, in m, can the jet be thrown if the gage pressure right after the pump is 550kPa? Round your answer to 3 decimal places. 25mm dia. nozzle 2.5m 13.5m 150mm dia. fire hose H 300 mm dia. main pipe

A fire pump delivers water through a 300 mm diameter main to a hydrant to which is connected a cotton rubber lined fire hose 150 mm in diameter terminating to a 25 mm diameter nozzle. The nozzle is 2.5m above the hydrant and 16m above the pump. Assuming frictional losses of 3m from the pump to the hydrant, 2m in the hydrant, 10m from the hydrant to the base of the nozzle, and the loss in the nozzle of 4% of the velocity head in the jet, to what vertical height, in m, can the jet be thrown if the gage pressure right after the pump is 550kPa? Round your answer to 3 decimal places. 25mm dia. nozzle 2.5m 13.5m 150mm dia. fire hose H 300 mm dia. main pipe

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

m². -5 S Figure shows a portion of a fire protection system in which a pump draws water at 60°F (v =1.21 ×10¯ from a reservoir and delivers it to a point B at the flow rate of 1500 gal/min. Calculate the required height h of the water level in the tank in order to maintain 5.0 Psig pressure at point A h 25 ft A Pump 2600-ft-long 8-in Schedule 40 steel pipe Flow Flow 45-ft-long 10-in Schedule 40 steel pipe B
0105 Water at 40 °C is pumped from an open tank through 200 m of 50-mm-diameter smooth horizontal pipe as shown in Figure 1 and discharges into the atmosphere with a velocity of 3 m/s. Minor losses are negligible. (a) If the efficiency of the pump is 70%, how much power is being supplied to the pump? (b) What is the NPSHA at the pump inlet? Neglect losses in the short section of pipe connecting the pump to the tank. Assume standard atmospheric pressure. Note: for smooth pipe, friction factor, f = 0.0152 and at 40 °C. kinematic viscosity Temperature (°C) Water vapor pressure (N/m²) Specific weight (N/m³) (m²/s) 6.58 x 10-7 40 7.376 x 10³ 9.731 x 10³ T 3 m ! PUMP 9.731* Diameter = 50 mm Length 200 m e Figure 1
A pipe carrying water tapers from 300 mm diameter to 150 mm diameter. Section l is 8 m and Section 2 is 3 m above the reference line. The pressure at section 1 is 2 MPa and at section 2 is 0.5 MPa, both are above atmospheric pressure. The discharge is 2.4 m3/min. Find i. The head loss between section 1 and 2 by using Bernoulli's equation ii. Difference of kinetic heads between section 1 and section 2 /// 7//// / ! // Q=2.4 m³/min 8 m 3 m Reference line P-2 Мра =300 mm P-0.5 Мра D=150 mm
Please solve and answer the question correctly please. Thank you!!
Two tanks A and B are connected by a pipe 30 m long. The first 21 m has a diameter of 75 mm and then is suddenly reduced to 50 mm for the next 9 m. The difference of levels between the tank water levels is 2.40 m. Pipe coefficient f=0.005 and the contraction coefficient at sudden change in area is 0.58. Find all the losses, in terms of velocity v2 at exit from the 50 mm2pipe and hence find rate of flow. Draw the Hydraulic gradient line.
Do fast
Ex ....... HYDRAUE • The pump is to be connected to a rising main which has a diameter (D) of 400 mm and a length of 137 m.The entry exit and minor head losses in the pipeline can be taken as 80D in this particular situation. The friction loss can be approximated by h; = ALQ² / 1 2D5 with A=0.04. The static lift is 10 m. By considering a single pump (P). And two of the pumps in series (P+P) and parallel (P//P) determine: > the H-Q curve of the two pump combinations » Which combination will be capable of discharging at least 0.3 m³/s, with the ability to pump up to 0.35 m³/s if the need arises. %3D
A pumping system has the following characteristics, f=0.015 length of thepipe = (2500 ft) pipe diameter 6 in, losses less than 0.5, the pipeis cast iron, and the system curve is:Hp= 34+ 5.47Q2Knowing that the system curve and the pump curve intersect at 12 cfsa. Determine Operation headb. Determine dischargec. Plot the system curve
As shown in the figure, the water flows from the ground floor of a three-storey house to the second floor through pipes of 20 mm diameter (average roughness of the pipe material = 0.0015 mm) at a volumetric flow rate of 0.75 L / s. Water is discharged from the system to atmospheric pressure through a tap with a 12 mm diameter outlet. There are 4 winged elbows, one ball valve and one faucet throughout the installation. Calculate the effective pressure at point 1. (psu=998 kg/m3, usu=1.12x10-3 Pa s, g=9.81 m/s2)
Which of the following equations below describes the system head of the piping shown below. The total length of the pipe is 154 ft. Take the friction factor to be 0.026. The pipe used has a nominal diameter of 4 inches and Schedule No. 40. The system head H is in ft and the flow rate Q is in ft3/s. a. H = 51 + 25.98(Q^2) b. H = 54 + 24.98(Q^2) c. H = 54 + 25.98(Q^2)
Example -5.2- It is required to pump cooling water from storage pond to a condenser in a process plant situated 10 m above the level of the pond. 200 m of 74.2 mm i.d. pipe is available and the pump has the characteristics given below. The head loss in the condenser is equivalent to 16 velocity heads based on the flow in the 74.2 mm pipe. If the friction factor = 0.003, estimate the rate of flow and the power to be supplied to the pump assuming n = 0.5 Q (m³/s) 0.0028 0.0039 0.005 0.0056 0.0059 Ah (m) 23.2 21.3 18.9 15.2 11.0
Elevation = 100 ft D¸ = 1 ft (1) l (1) e, = 1000 ft D2 = 1 ft lz = 500 ft B V Elevation = %3D 20 ft (2) D3 = 1 ft (3) Elevation = l3 = 400 ft O ft Three open reservoirs are connected by pipes as shown above. It is assumed that the pipe diameter is equal to the friction factor of 0.03. Because theratio of the LIDpipe is large, the minor losses are ignored. Determine the flow in or out of each reservoir! Draw with sketch 5.