### Firefighting Water Dynamics Problem#### Illustration Description:The diagram illustrates a pond connected to a firetruck with a pump. The hose extends from the firetruck held by a firefighter, who is positioned 1 meter off the ground. A vertical cliff is present, measuring 12 meters in height.#### Questions:1. **Flow Speed Calculation:** - **Question:** The firefighter holds the hose 1 m off the ground. What is the speed of the flow as it leaves the hose nozzle? - **Answer Field:** [Enter answer here]2. **Nozzle Exit Diameter:** - **Question:** What is the diameter of the nozzle exit? - **Answer Field:** [Enter answer here]3. **Pressure in the Hose:** - **Question:** The hose from the firetruck to the firefighter has a 15 cm inside diameter. What is the pressure in the hose as it leaves the truck? Assume no losses in the hose and that the hose exits the truck at a height of 1 m off the ground. - **Answer Field:** [Enter answer here]4. **Power in the Fluid:** - **Question:** What is the power in the fluid coming out of the pump? - **Answer Field:** [Enter answer here]5. **Motor Power Input:** - **Question:** Assume the pump and motor have a combined efficiency of 60%. What power must be input to the motor? - **Answer Field:** [Enter answer here] **Title:** Physics of Firetruck Water Pumping Systems**Introduction:**Explore the physics involved in pumping water to great heights, as utilized by firetrucks in firefighting scenarios. In this example, we evaluate a firetruck drawing water from a pond and propelling it upwards at a constant rate.**Scenario Description:**A firetruck pumps water from a nearby pond and projects it as a narrow stream to a height of 12 meters. The water flow rate is 4200 liters per minute (L/min). For simplicity, kinetic energy at the top of the building is deemed negligible, and the horizontal velocity component is not considered significant.**Diagram Explanation:**The accompanying diagram features:- A pond as the initial water source.- A firetruck equipped with a pump that directs water through a hose.- The hose rises to a nozzle held by a firefighter, 1 meter above the ground.- The water ultimately reaches a height of 12 meters at the building. **Questions for Consideration:**- **The firefighter holds the hose 1 m off the ground. What is the speed of the flow as it leaves the hose nozzle?** (Input your answer here)- **What is the diameter of the nozzle exit?** (Input your answer here)- **The hose from the firetruck to the firefighter has a 15 cm inside diameter. What is the pressure in the hose as it leaves the truck? Assume no losses in the hose and that the hose exits the truck a height of 1 m off the ground.** (Input your answer here)**Conclusion:**This exercise facilitates comprehension of fluid dynamics principles applied in emergency settings, emphasizing hydrostatic pressure and velocity calculations essential for effective firefighting operations.

according to bartleby policy, answering first 3 subparts only.

• The firefighter holds the hose 1 m off the ground. What is the speed of the flow as it leaves the hose nozzle? • What is the diameter of the nozzle exit? • The hose from the firetruck to the firefighter has a 15 cm inside diameter. What is the pressure in the hose as it leaves the truck? Assume no losses in the hose and that the hose exits the truck a height of 1 m off the ground.

• The firefighter holds the hose 1 m off the ground. What is the speed of the flow as it leaves the hose nozzle? • What is the diameter of the nozzle exit? • The hose from the firetruck to the firefighter has a 15 cm inside diameter. What is the pressure in the hose as it leaves the truck? Assume no losses in the hose and that the hose exits the truck a height of 1 m off the ground.

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

Related questions

Q: 1. A pipe has circular cross section of radius ro. Water is flowing in the pipe. At the pipe exit,…

A: Step 1: Step 2: Step 3: Step 4:

Q: The plunger diameter of a single-acting reciprocating pump is 115 mm and the stroke is 230 mm. The…

Q: A pump delivers gasoline at 20 degrees Celsius and 12 (m^3)/h. At the inlet p1=100 kPa, z1=1 m, and…

A: given flow rate, Q=12m3/hr=123600m3/sinlet pressure, P1=100Kpadistance from datum at inlet,…

Q: A siphon pipe of diameter 250 mm contracts to a diameter of 100 mm over a vertical distance of 5 m…

Q: If the velocity in a 300-mm pipe is 0.50 m/s, what is the velocity in a 75-mm-diameter jet issuing…

Q: Consider the following compressor that receives air at a constant rate of three cubic feet per…

Q: A hydro-electric plant having 50 km2 reservoir area and 100 m head is used to generate power. The…

A: Given:Area of reservoir,A=50 km2 = 50×106 m2Head, H=100 m,overall generation efficiency, ηo=75…

Q: A jet of 50mm diameter impinges on a curved vane and is deflected through an angle of 175 degree.…

A: The diameter of jet is given as, d=50 mmd=50×10-3 md=0.05 m The angle of deflection of vane is given…

Q: A piston moves with constant velocity Up in a cylinder having radius R. A liquid having density p…

Q: find the speed up with which it flows inside the hose.

Q: A small, high pressure water jet can be used for cutting various materials. A jet with a speed of…

A: For the solution refer below images.

Q: Water flows through a vertical contraction (venturi) section. Piezometers are attached to the…

Q: 1) A plugged dishwasher sink with the dimensions of 16 in. ✕ 20 in. ✕ 7 in. is being filled with…

A: As per our company guidelines, we are allowed to answer only the first question in case of multiple…

Q: For the following system, calculate the flow rate from the nozzle. Give the result Q in m3/s

Q: A pump raises 650 tonnes of pure water a height of 55m in 6 hours. If the pump efficiency is 100%,…

A: The power required. Given: The mass of the water is m=650 tonnes=650×103 kg. The height is h=55 m.…

Q: An irrigation pump delivers water through a 6 - inches horizontal pipe flowing full at the outlet,…

A: If an object travels with constant velocity, then the motion of the object is said to be uniform…

Q: A jet of 50mm diameter impinges on a curved vane and is deflected through an angle of 175 degree.…

A: d=50 mmδ=175°θ=180-175=5°u=35 m/secQ=170 Lsec orQ=170×10-3 m3secSinceQ=AV170×10-3=π4×.052×VV=86.58…

Q: Water in a vertical (i.e., gravitational force of the fluid in the nozzle plays a role, and the…

Q: In an experiment a jet of water of diameter 20 mm is fired vertically upwards at a sprung target…

Q: A fireboat is putting out a blaze from a beach bonfire that got out of hand. If the nozzle angle is…

Q: could you please help me calculate the maximum height of the jet , Hj in metres please

Q: 2. The figure shows a pipe reducing section that is bolted on to the end of a pipe. Water flows…

Concept explainers

Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

### Firefighting Water Dynamics Problem

#### Illustration Description:
The diagram illustrates a pond connected to a firetruck with a pump. The hose extends from the firetruck held by a firefighter, who is positioned 1 meter off the ground. A vertical cliff is present, measuring 12 meters in height.

#### Questions:

1. **Flow Speed Calculation:**
- **Question:** The firefighter holds the hose 1 m off the ground. What is the speed of the flow as it leaves the hose nozzle?
- **Answer Field:** [Enter answer here]

2. **Nozzle Exit Diameter:**
- **Question:** What is the diameter of the nozzle exit?
- **Answer Field:** [Enter answer here]

3. **Pressure in the Hose:**
- **Question:** The hose from the firetruck to the firefighter has a 15 cm inside diameter. What is the pressure in the hose as it leaves the truck? Assume no losses in the hose and that the hose exits the truck at a height of 1 m off the ground.
- **Answer Field:** [Enter answer here]

4. **Power in the Fluid:**
- **Question:** What is the power in the fluid coming out of the pump?
- **Answer Field:** [Enter answer here]

5. **Motor Power Input:**
- **Question:** Assume the pump and motor have a combined efficiency of 60%. What power must be input to the motor?
- **Answer Field:** [Enter answer here]

**Title:** Physics of Firetruck Water Pumping Systems

**Introduction:**
Explore the physics involved in pumping water to great heights, as utilized by firetrucks in firefighting scenarios. In this example, we evaluate a firetruck drawing water from a pond and propelling it upwards at a constant rate.

**Scenario Description:**
A firetruck pumps water from a nearby pond and projects it as a narrow stream to a height of 12 meters. The water flow rate is 4200 liters per minute (L/min). For simplicity, kinetic energy at the top of the building is deemed negligible, and the horizontal velocity component is not considered significant.

**Diagram Explanation:**
The accompanying diagram features:
- A pond as the initial water source.
- A firetruck equipped with a pump that directs water through a hose.
- The hose rises to a nozzle held by a firefighter, 1 meter above the ground.
- The water ultimately reaches a height of 12 meters at the building.

**Questions for Consideration:**

- **The firefighter holds the hose 1 m off the ground. What is the speed of the flow as it leaves the hose nozzle?**
(Input your answer here)

- **What is the diameter of the nozzle exit?**
(Input your answer here)

- **The hose from the firetruck to the firefighter has a 15 cm inside diameter. What is the pressure in the hose as it leaves the truck? Assume no losses in the hose and that the hose exits the truck a height of 1 m off the ground.**
(Input your answer here)

**Conclusion:**
This exercise facilitates comprehension of fluid dynamics principles applied in emergency settings, emphasizing hydrostatic pressure and velocity calculations essential for effective firefighting operations.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Please Answer Both!!!
Water flows from a pressurized tank, through a pipe of diameter D, exits from a nozzle of diameter d, and rises a height H above the tank bottom. The water depth in the tank is h. Determine the relationship between the gage pressure of the in the tank and H. If the gage reads 10 psi, d = 2 in, D = 4 in, and h = 3 ft, calculate the jet height H.
Water is ejected vertically from a pressurized tank as shown in Figure 2. The "3 atm" pressure value is an absolute pressure value. Figure 2 Calculate the gauge pressure at the bottom of the tank in kPa if the height in the tank is H = 4.1 m. calculate the velocity at the nozzle exit, in m/s, for H = 4.2 m. calculate the maximum height of the water jet from the nozzle, h, in m, for a velocity at the nozzle of 21.0 m/s Assume the density of water is 1000 kg/m3 and 1 atm = 1.01 x 105 Pa. Use g = 9.81 m/s2.
simple answer no need to explain
Don't copy any wrong solution, Answer must correct. Show your work within 30minutes.
Water flows at 10 m/s through a pipe. The pipe's radius then becomes 40% of its original size. What is the velocity of the water in the narrower section of pipe?
A fan produces 200Pa at an impeller speed of 1000rpm. What is the change in pressure if the impeller speed was increased to 2000rpm? Show complete solution.
Water flows through a pipe of constant radius = 10 cm with a speed of 4 m/s and a pressure of 250 kPa. Find the speed at the outlet and mention which conservation law is used in this calculation. What is the pressure at point B?
Write the expanded form of Darcy’s Law. Draw a tube full of sand, with piezometers, and label the components of the system.
A pumping station wet well operates between 540- and 550-ft elevation. The pump curve is deϐined by the following points: 80 ft at zero ϐlow, 78 ft at 200 gpm, 65 ft at 800 gpm, and 50 ft at 1200 gpm. The pump discharge contains an equivalent of 50 ft of 6-in. pipe. The discharge pipe is 120-ft long and terminates at a splitter box, elevation 570. Using C=100, plot the pump curve and the corrected pump curve. Plot the pump discharge curves at each wet well elevation and for C=100 and C=140. What is the pump ϐlow at the low and high wet well elevations for newand old pipe?
Complete Solution please, thanks. 3. A vertical circular stack 30 m high converges uniformly from a diameter of 6 m at the bottom and 4.5 m at the top. Gas with a unit weight of 0.12 N per cubic meter enters the bottom of the tank with a uniform velocity of-assume values with decimals between 3 to 4 m per second- enters the stack. The unit weight increases by 7.5 percent every 2 meters. Find the velocity of flow at every 5 meters along the stack.
Water is pumped into a fire hose through a 6 cm diameter pipe with speed 1m/s. The water in the fire hose flows with a pressure of 200000 Pa. At the end of the fire hose is a nozzle (small hole). The pressure decreases to atmospheric pressure (101300 Pa) when the water leaves the nozzle from the hose. There is no change in height moving from the hose to the nozzle. 1. What is the water speed in a 4 cm diameter fire hose? 2. What is the velocity of the water exiting the nozzle (p=1000kg/m³)? 4. What is the diameter of the nozzle? 3. A Fireworker now connects an additional flexible tube to the nozzle (tube and nozzle has same diameter). He lifts the tube to a height of 1 meter above the ground. At what speed does the water come out of the tube? (hint - the pressure at the exit is still atmospheric)