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Alexxx [7]
3 years ago
5

A decorative fountain was built so that water will rise to a hieght of 8 feet above the exit of the pipe. the pipe is 3/4 diamet

er galvanized schedule 40 steel pipe. The resistance coefficiant of each elbow is 1.5. the height, is h1 is 4 inches above of the centerline of the pipe. Determine the required pressure guage to achieve the result.
Engineering
1 answer:
Andru [333]3 years ago
7 0

Answer:

Explanation:

given,

height of rise of water = 8 ft

     1 ft = 0.3048

     8 ft = 8 × 0.3048 = 2.44 m

pipe diameter = 3/4 of galvanized schedule 40 steel pipe

resistance coefficient = 1.5

h_1 = 4 inch

1 inch = 0.0254 m

4 inch = 4 ×0.0254 = 0.1016

velocity of water

v = \sqrt{2gh}

v = \sqrt{2\times 9.8 \times 2.44}

v= 6.92 m/s

loss of head due to bend

h_L=K\dfrac{v^2}{2g}

h_L=1.5\dfrac{6.92^2}{2\times 9.81}

h_L = 3.66 m

applying Bernoulli's equation

\Delta P = \dfrac{1}{2}\rho v^2+\rho g h_1 + h_L

\Delta P = \dfrac{1}{2}1000 \times 6.92^2+1000\times 9.81 \times 0.1016 + 3.66

\Delta P = 24943\ Pa

\Delta P = 24.9\ KPa

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Brilliant_brown [7]

Answer:

\dot Q_{in} = 372.239\,MW

Explanation:

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w_{in} + h_{in}- h_{out} = 0

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h_{out} = 12\,\frac{kJ}{kg} + 191.81\,\frac{kJ}{kg}

h_{out} = 203.81\,\frac{kJ}{kg}

The boiler heats the water to the state of saturated vapor, whose specific enthalpy is:

h_{out} = 2685.4\,\frac{kJ}{kg}

The rate of heat transfer in the boiler is:

\dot Q_{in} = \left(150\,\frac{kg}{s}\right)\cdot \left(2685.4\,\frac{kJ}{kg}-203.81\,\frac{kJ}{kg} \right)\cdot \left(\frac{1\,MW}{1000\,kW} \right)

\dot Q_{in} = 372.239\,MW

3 0
3 years ago
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A two-dimensional flow field described by
Oduvanchick [21]

Answer:

the answer is

Explanation:

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5 0
3 years ago
A race car is travelling around a circular track. The velocity of the car is 20 m/s, the radius of the track is 300 m, and the m
Zielflug [23.3K]

Answer:

μ = 0.136

Explanation:

given,

velocity of the car = 20 m/s

radius of the track = 300 m

mass of the car = 2000 kg

centrifugal force

F_c = \dfrac{mv^2}{r}

F_c = \dfrac{2000\times 20^2}{300}

F c = 2666. 67 N

F f= μ N

F f = μ m g

2666.67  =  μ × 2000 × 9.8

μ = 0.136

so, the minimum coefficient of friction between road surface and car tyre is equal to μ = 0.136

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3 years ago
For a turning operation, you have selected a high-speed steel (HSS) tool and turning a hot rolled free machining steel. Your dep
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Answer:

MRR = 1.984

Explanation:

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Diameter D= 1 in

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feed f= 0.015 ipr

Now  the metal   removal  rate   given as

MRR= 12 f V d

d= depth of cut

V= Speed

f=Feed

MRR= Metal removal rate

By putting the values

MRR= 12 f V d

MRR = 12 x 0.015 x 105 x 0.105

MRR = 1.984

Therefore answer is -

1.944

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3 years ago
NEED HELPASAP what is the moisture content of a board if a test sample that originally weighed 11. 5 oz was found to weigh 10 oz
Viefleur [7K]

Answer:

11.5-10/10= 0.15x100 =15%

Explanation:

3 0
2 years ago
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