in areas where compaction is required, there must be at least ' above the pipe before compaction with mechanical means.
Answers
In areas where compaction is required, there must be at least 1' above the pipe before compaction with mechanical means.
Compaction refers to the mechanism which expels entrapped air from freshly placed concrete and packs together the aggregate particles so as to maximize the density of concrete. Compaction significantly increases the ultimate strength of concrete and enhances the bonding with reinforcement. In simple terms, compaction occurs when particles are pressed together in order to reduce the space between them. In areas where compaction is needed, it is kept into consideration that there must be at least 1' above the pipe before compaction is performed.
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Related Questions
gasoline has a comparatively high btu per galloon rating around?
Answers
Answer:
116,090 Btus
Explanation:
With direct fuel injection the gasoline is injected:
Answers
Answer:
Gasoline is injected directly into the cylinder.
Explanation:
In a direct injection system, the air and gasoline are not pre-mixed. Rather, air comes in using the intake manifold, while the gasoline is injected directly into the cylinder.
A square plate of titanium is 12cm along the top, 12cm on the right side, and 5mm thick. A normal tensile force of 15kN is applied to the top side of the plate. A normal tensile force of 20kN is applied to the right side of the plate. The elastic modulus, E, is 115 GPa for titanium.If the left and bottom edges of the plate are fixed, calculate the normal strain and elongation of both the TOP and RIGHT side of the plate.
Answers
Answer:
\(X_t=2.17391304*10^{-4}\)
\(X_r=2.89855072*10^{-4}\)
\(e_t=0.0026\)
\(e_r=0.0035\)
Explanation:
From the question we are told that:
Dimension \(12*12\)
Thickness \(l_t=5mm=5*10^-3\)
Normal tensile force on top side \(F_t= 15kN\)
Normal tensile force on right side \(F_r= 20kN\)
Elastic modulus, \(E=115Gpap=>115*10^9\)
Generally the equation for Normal Strain X is mathematically given by
\(X=\frac{Force}{Area*E}\)
Therefore
For Top
\(X_t=\frac{Force_t}{Area*E}\)
Where
\(Area=L*B*T\)
\(Area=12*10^{-2}*5*10^{-3}\)
\(Area=6*10^{-4}\)
\(X_t=\frac{15*10^3}{6*10^{-4}*115*10^9}\)
\(X_t=2.17391304*10^{-4}\)
For Right side\(X_r=\frac{Force_r}{Area*E}\)
Where
Area=L*B*T
\(Area=12*10^{-2}*5*10^{-3}\)
\(Area=6*10^{-4}\)
\(X_r=2.89855072*10^{-4}\)
\(X_r=2.89855072*10^{-4}\)
Generally the equation for elongation is mathematically given by
\(e=strain *12\)
For top
\(e_t=2.17391304*10^{-4}*12\)
\(e_t=0.0026\)
For Right
\(e_r=2.89855072*10^{-4} *12\)
\(e_r=0.0035\)
Discuss the relation between the force exerted and pressure.
Answers
Answer:
When a force is exerted on an object it can change the object's speed, direction of movement or shape. Pressure is a measure of how much force is acting upon an area. Pressure can be found using the equation pressure = force / area. Therefore, a force acting over a smaller area will create more pressure
Explanation:
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In a transverse wave, the distance between two adjacent crests is _____ the distance between two adjacent troughs.
a. Less than.
b. Greater than.
c. Equal to.
Answers
In a transverse wave, the distance between two adjacent crests is equal to the distance between two adjacent troughs.
What is transverse wave?
A transverse wave is a type of wave that moves perpendicular to the direction of the wave. This is in contrast to a longitudinal wave, which moves parallel to the direction of the wave.
An example of a transverse wave is a wave in a rope. When a rope is shaken from side to side, the wave travels along the rope, but the displacement of the rope is perpendicular to the direction of the wave.
Another example of a transverse wave is a light wave, which consists of oscillating electric and magnetic fields that are perpendicular to the direction of the wave's propagation.
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features of a dry leclanche cell
Answers
Answer:
Primary cell with a nominal open circuit voltage of 1.5 Volts produced in very high volumes. Chemistry based on a zinc anode and a cathode/depolariser of manganese dioxide which absorbs the liberated hydrogen bubbles which would otherwise insulate the electrode from the electrolyte.
Answer:
Explanation:
(1) The electrolyte is a paste of ammonium chloride.
(2) The positive terminal (anode) is a carbon rod surrounded bymangAnese Dioxide as a depolarised .
(3) The negative terminal is zinc container.
name as much parts in a car that you know
Answers
Answer:
engine suspension brake and more
Explanation:
Technician A says that a standard grade 5 bolt is stronger than a standard grade 8 bolt. Technician B says that a metric grade 12.9 bolt is stronger than a metric grade 4.6 bolt. Who is correct?
Answers
Since Tech B says that a metric grade 12.9 bolt is stronger than a metric 4.6 bolt. the person that is correct is option b. Tech B.
What grade is a 12.9 bolt?The grade of 12.9 bolt is known to be 1220 (176,000 psi). The alloy carbon steel is said to be one that is often used to make Metric 12.9 Hex Cap Screws that is heat-treated, quenched, as well as tempered.
Their strength is one that is comparable to alloy sockets, and with a proof load of 970 MPa and a minimum tensile strength of 1220 MPa.
Therefore, Since Tech B says that a metric grade 12.9 bolt is stronger than a metric 4.6 bolt. the person that is correct is option b. Tech B.
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See full question below
Tech A says that a standard grade 5 bolt is stronger than a standard grade 8 bolt. Tech B says that a metric grade 12.9 bolt is stronger than a metric 4.6 bolt. Who is correct?
a. Tech A
b. Tech B
c. both
d. neither
1. What does the designation w21x68 refer to in a steel beam? [explain (w) and (21) and (68)] 2. What is the difference between shear and moment connections? 3. What is composite construction and what are the advantages? 4. What are the advantages/ disadvantages of steel structure with respect to fire, and how can the disadvantages be overcome? provide examples. 5. What is an open web steel joist, and how is the lightweight steel decking attached? 6. Sketch a web joist
Answers
The answer response are:
1. In a steel beam, the designation w21x68 refers to its size and shape. The "W" stands for wide flange and the number "21" indicates the depth of the beam in inches. The weight per foot of the beam is approximately 68 pounds.
2. Shear connections are designed to resist shear forces in a beam, while moment connections are designed to resist bending moments. Shear connections typically have bolts or welds connecting the beam to the supporting column, while moment connections have additional plates and bolts to provide extra strength against bending moments.
3. Composite construction is a type of building construction that combines two materials, usually steel and concrete, to create a more efficient and cost-effective structure. The advantages of composite construction include increased strength and stiffness, improved fire resistance, and reduced construction time and costs.
4. Steel structures have the advantage of being strong and durable, but they can also be vulnerable to fire due to their high melting point. To overcome this disadvantage, steel structures can be coated with fire-resistant materials or designed with additional fire protection measures, such as sprinkler systems or fire-resistant insulation. An example of a steel structure that has been designed for fire resistance is the World Trade Center in New York City.
5. An open web steel joist is a type of steel beam that has a web consisting of a series of smaller steel bars or rods. The lightweight steel decking is attached to the joist using special clips or fasteners that are designed to hold the decking securely in place.
What is the steel beam about?A steel beam is a structural element made of steel that is used to support heavy loads in construction and engineering projects. Steel beams come in a variety of shapes and sizes, including I-beams, H-beams, and wide flange beams.
Therefore, They are designed to resist bending and shearing forces, and are often used to span long distances or support the weight of other structural components, such as floors, roofs, and walls. Steel beams are popular in construction due to their strength, durability, and versatility, and can be found in a wide range of buildings, from skyscrapers to residential homes.
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If the reading of mercury manometer was 728 mmHg, what is the reading for another liquid such as water in mH20 units?
Answers
Answer:
mH275 units
Explanation:
that was trueTwo Liquids, A and B, are mixed. A is 5% solids, the rest is water. B is 11% solids; the rest is water. To the mixture is added 18.5 kg of bone-dry solids resulting in a mixture of 2,150 Kg containing 8.25% solids. What were the original amounts of the liquids A and B? Show all work
Answers
The original amounts of the liquids A and B based on the information will be 1260kg and 872kg.
What is an equation?An equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe the scenario. It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.
Based on the information given, let us call the liquids illustrated as A and B, while the weight is in kg.
The first equation is the amount of solids and this will be represented thus:
0.05A + 0.11B + 18.5 = 0.0825(2150) = 177.375
0.05A + 0.11B = 158.875
5A + 11B = 15887.5
The second equation will be represented thus:
A + B + 18.5 = 2150
Collect like terms
A + B = 2150 - 18.5
A + B = 2131.5
Multiplying the equation will be:
6B = 5230
Divide through by 6
6B / 6 = 5230 / 6
B = 872 kg
Therefore, A will be 1260 kg.
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When you park on a hill,the direction your __are pointed determines which direction your car will roll if the breaks fail
Answers
Answer:
Tires or wheels? I think this is the answer. ^_^
Explanation:
Think about the ineffective leaders (bosses, coaches, etc.) you have experienced. What dark-side traits did these leaders possess that caused them to be ineffective?
Answers
The dark-side traits the leaders possessed that caused them to be ineffective are; Narcissism, Psychopathy and Machiavellianism.
What are bad character traits?
According to Paulhus and williams, they discovered in year 2002 that several personality traits could be related to failures of a leader but they narrowed it down to three which they referred to as the Dark Triad.
These dark side traits are;
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which of the following is not an acceptable means of making a steel column fire resistant? group of answer choices apply an intumescent mastic/paint. wrap the column with layers of drywall. encase the column in concrete. use a water-filled box column.
Answers
All of the above are acceptable means of making a steel column fire-resistant.
Spraying low-density fibers or cementitious compounds, also known as spray-applied fire-resistive materials, is the most common method of fireproofing.
Applying intumescent mastic/paint also known as intumescent paints protects steel members from fire. By creating a buffer between a steel element and the fire, intumescent coatings can expand by as much as 100 times their original thickness.
Encase the column in concrete is majorly utilized in large sections whereby steel is encased in. Based on the amount of concrete used, this requires more space than other options. Additionally, because it is not as visually appealing as others, it is utilized in settings where appearance is not the primary consideration.
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Ordan has _ 5 8 can of green paint and _ 3 6 can of blue paint. If the cans are the same size, does Jordan have more green paint or blue paint? Explain.
Answers
Answer:
Jordan has more green paints
Explanation:
Given
\(Green = \frac{5}{8}\)
\(Blue = \frac{3}{6}\)
Required
Which paint does he have more?
For better understanding, it's better to convert both measurements to decimal.
For the green paint:
\(Green = \frac{5}{8}\)
\(Green = 0.625\)
For the blue paint:
\(Blue = \frac{3}{6}\)
\(Blue = 0.5\)
By comparison:
\(0.625 > 0.5\)
This means that Jordan has more green paints
The term route of entry on an SDS refers to the way a what enters the body?
Answers
LAB 9: Basic Router Configuration Recover your password Procedure 1. Attach a terminal or PC with terminal emulation to the console port of the router. 2. If you can access the router, type show version at the prompt, and record the configuration register setting. Note: The configuration register is usually set to 0×2102 or 0×102. If you can no longer access the router (because of a lost login or TACACS password), you can safely assume that your configuration register is set to 0x2102. 3. Use the power switch in order to tum off the router, and then tum the router back on. 4. Press Break on the terminal keyboard within 60 seconds of power up in order to put the router into ROMmon. 5. Type confreg 0×2142 at the rommon 1> prompt in order to boot from Flash. This step bypasses the startup configuration where the passwords are stored. 6. Type reset at the rommon 2> prompt. The router reboots, but ignores the saved configuration. 7. Type no after each setup question, or press Ctrl-C in order to skip the initial setup procedure. 8. Type enable at the Router> prompt. You are in enable mode and should see the Router‡ prompt. 9. Type configure memory or copy startup-config running-config in order to copy the nonvolatile RAM (NVRAM) into memory. Warning: Do not type copy running-config startup-config or write. These commands erase your startup configuration. 10. Type configure terminal. The hostname (config) # prompt appears. 11. Type enable secret in order to change the enable secret password. For example: 12. hostname (config) #enable secret cisco 13. Issue the no shutdown command on every interface that you use. If you issue a show ip interface brief command, every interface that you want to use should display up up. 14. hostname (config) #config-register 0×2102 17. Type write memory or copy running-config startup-config in order to commit the changes. Things to do: Reset your CISCO Router back to factory defaults. Answer yes to the following (\$Part 7 above) : would you like to enter the initial configuration dialog? [yes/no}; You will then enter the router configuration/setup menu. 1) Complete the setup menu following the Class IP addressing standards. 2) Revieu the funning Confiq Questions: 1) What is Rommon? 2) What is global configuration mode? Router commands - explain the following commands show screen shots of each:; 3) ip-subnet-zero 4) ip-routing/no ip-routing 5) ip-classless 6) line viy 0 A 7) shutdown/no shutdown
Answers
The lab exercise involves recovering the password and resetting a Cisco router to factory defaults through a series of steps, including modifying the configuration register and bypassing the startup configuration.
What are the steps to recover the password and reset a Cisco router to factory defaults?In this lab exercise, the goal is to recover the password and reset the Cisco router back to factory defaults. The procedure involves accessing the router through a terminal or PC, modifying the configuration register, and bypassing the startup configuration. Here is a step-by-step explanation of the procedure:
1. Attach a terminal or PC with terminal emulation to the console port of the router.
2. Check the configuration register setting by typing "show version" and record the value.
3. Power off the router using the power switch and then power it back on.
4. Within 60 seconds of power-up, press the Break key on the terminal keyboard to enter ROMmon mode.
5. At the ROMmon prompt, type "confreg 0x2142" to set the boot mode to load from Flash, bypassing the startup configuration.
6. Type "reset" to reboot the router, ignoring the saved configuration.
7. Skip the initial setup procedure by selecting "no" or pressing Ctrl-C for each setup question.
8. Enter enable mode by typing "enable" at the Router> prompt.
9. Copy the nonvolatile RAM (NVRAM) into memory by typing "configure memory" or "copy startup-config running-config".
10. Enter configuration mode by typing "configure terminal". The hostname (config) # prompt will appear.
11. Change the enable secret password by typing "enable secret [password]" (e.g., enable secret cisco).
12. Enable each interface by issuing the "no shutdown" command on each interface.
13. Set the configuration register back to its original value by typing "config-register [value]" (e.g., config-register 0x2102).
14. Save the changes to the startup configuration by typing "write memory" or "copy running-config startup-config".
Additional tasks involve resetting the router to factory defaults, following the Class IP addressing standards in the setup menu, and reviewing the functionality of various router commands such as "ip-subnet-zero", "ip-routing/no ip-routing", "ip-classless", "line vty 0", and "shutdown/no shutdown".
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Two adjacent bridge piers rest on clay layers of different thickness but with the same properties. Pier #1 imposes a stress increment of 100 kPa to a 3 m thick layer while Pier #2 imposes a stress increment of 150 kPa to a 5 m thick layer. What is the differential settlement between the two piers if mv =3 × 10−4 m2/kN?
Answers
To calculate the differential settlement between the two piers, we can use the theory of one-dimensional consolidation. The differential settlement occurs due to the differential increase in stress imposed by the two piers on the underlying clay layers.
The settlement of a clay layer can be calculated using the following formula:
Δh = (Δσ * H^2) / (mv * (1 + e0) * (1 + e))
Where:
Δh is the settlement of the clay layer
Δσ is the stress increment imposed by the pier
H is the thickness of the clay layer
mv is the coefficient of consolidation
e0 is the initial void ratio of the clay layer
e is the final void ratio of the clay layer
Given:
Pier #1: Δσ = 100 kPa, H = 3 m
Pier #2: Δσ = 150 kPa, H = 5 m
mv = 3 × 10^(-4) m^2/kN
Assuming the initial and final void ratios of the clay layers are the same, we can simplify the calculation and find the differential settlement between the two piers:
For Pier #1:
Δh1 = (Δσ1 * H1^2) / (mv * (1 + e0) * (1 + e))
For Pier #2:
Δh2 = (Δσ2 * H2^2) / (mv * (1 + e0) * (1 + e))
Taking the difference of the two settlements, we get the differential settlement:
Δh_diff = Δh2 - Δh1
Substituting the given values into the equations and calculating the differential settlement, we can obtain the result.Please note that the void ratio (e) and initial void ratio (e0) should be determined based on the specific characteristics of the clay layer, such as its compressibility and consolidation behavior.
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Which of the following statements about resistance is TRUE?
Resistance resists or opposes the amount of protons flowing through voltage.
Resistance allows the amount of neutrons flowing through a circuit.
Resistance resists or opposes the amount of neutrons and protons flowing through a circuit.
Resistance resists or opposes the amount of electrons flowing through a circuit.
Answers
Answer:
I think it's the no 3rd
Explanation:
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(1) What are the available methods for crop establishments in the field?
(2) Give a conceptual sketch for a seeder to establish soybean seeds in an
agricultural field of dry zone in Sri Lanka (Use software where
necessary/or a hand sketch with detail).
(3) Discuss the advantages of the seed dibbling mechanism and list the
crops that can be used dibbler.
A
(4) Discuss the key points to enhance agricultural productivity using the
fertilizer applicators.
(5) Calculations: Calibration of a seed drill
Number of furrows = 5
Spacing between the furrows = 8 cm
Diameter of the ground wheel = 0.65 m
Number of rotations of the ground wheel = 300
Weight of seed collected = 20 kg
Calculate the seed rate in kg/ha
The average number of seeds dropped per one revelation =6
Calculate the
(1) seed rate and
(ii)
hole to hole spacing
Answers
Answer:
1) Therefore it was so much more than one answer my headA material is subject to a tensile load of 80000 N. It's cross sectional area is 1 cm^2. The elastic modulus of this material is 8 GPa. What strain results from this tensile load
Answers
Answer:0.1
Explanation:
What is the resistance of a relay coil at 28 V, 0.1 A?
Answers
Answer: Remember the formula V = IR ?
That’s all you need.
You know the current through the resistor, and you can easily work out the voltage drop required across the resistor, so it’s a bit of simple arithmetic to work out the value of R required.
Now do your own homework
Explanation:
Answer:
280 ohms
Explanation:
I = V/R
Then you make R the subject of the formula
R = V/I
R = 28/0.1
R= 280 ohms
what is the IMA of a fixed pulley
Answers
Answer:
Not sure
Explanation:
Looking now
Hope this helps
1. An air standard cycle is executed within a closed piston-cylinder system and consists of three processes as follows:1-2 = constant heat addition from 100 kPa and 27∘C to 700 kPa 2-3 Isothermal expansion until V3 = 7v23-1 P = constant heat rejection to the initial state2. Assume air has constant properties with cv = 0.718 kJ/kg K, cp = 1.005 kJ/kg K, R = 0.287 kJ/kg K, and k = 1.4.(a) Sketch the P- and T-s diagrams for the cycle.(b) Determine the ratio of the compression work to the expansion work (the back work ratio).(c) Determine the cycle thermal efficiency.
Answers
Answer:
Explanation: Here it is: 67 Hope that helps! :)
Consider the following Moore’s law growth pattern (since 1980) for the number of transistors inside a particular commercial microprocessor: N = 1920 x 10 0.1637(Y – 1980) where Y is the year and N is the number of transistors. Assuming sustained Moore’s law growth, what will be the number of transistors in a microprocessor in year 2025? Using the same expression, calculate how many years it will take for the transistor count to increase by 100x
Answers
Answer:
No. of transistors = \($4.1524 \times 10^{10}$\) transistors
Explanation:
Given that:
N = \($1920 \times 10^{0.163(Y-1980)}$\)
Y = 2025
N = \($1920 \times 10^{0.163(2025-1980)}$\)
N = \($4.1524 \times 10^{10}$\) transistors
Now at Y = 1980
Number of transistors N = 1920
Therefore,
\($1000 = 10^{0.163(Y-1980)}$\)
\($\log_{10} 1000=0.163(Y-1980)$\)
\($\frac{3}{0.163}=Y-1980$\)
18 ≅ 18.4 = Y - 1980
Y = 1980 + 18
= 1998
So, to increase multiples of 1000 transistors. it takes 18 years.
Convert the azimuths from north to bearings
Answers
The azimuth from north of line CD will be 190°, 57'36.
How to explain the informationThe azimuth is the angle between North, measured clockwise around the observer's horizon, and a celestial body (sun, moon). It determines the direction of the celestial body.
The angle at B is the interior angle of triangle ABC, so we can find the angle at C by subtracting it from 180°.
The angle at D is the interior angle of triangle BCD, so we can find the angle at C by subtracting it from 180°:
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In your own words how does an airplane take off?
Answers
Answer:
Explanation:
How does an aircraft take off?
They are lift, weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift. The shape of the wings helps with lift, too.
HOPE THIS HELPS!
It is desired to enrich the partial pressure of hydrogen in a hydrogen–nitrogen gas mixture for which the partial pressures of both gases are 0.1013 MPa (1 atm). It has been proposed to accomplish this by passing both gases through a thin sheet of some metal at an elevated temperature; in as much as hydrogen diffuses through the plate at a higher rate than does nitrogen, the partial pressure of hydrogen will be higher on the exit side of the sheet. The design calls for partial pressures of 0.051 MPa (0.5 atm) and 0.01013 MPa (0.1 atm), respectively, for hydrogen and nitrogen. The concentrations of hydrogen and nitrogen (CHC
H and CNC N , in mol/m3mol/m
3 ) in this metal are functions of gas partial pressures (pH2 and pN2p
H 2 and p N , in MPa) and absolute temperature and are given by the following expressions:
CH=2.5×103√pH2exp(−27,800J/mol/RT)
CN=2.75×103√pN2exp(−37,600J/mol/RT )
Furthermore, the diffusion coefficients for the diffusion of these gases in this metal are functions of the absolute temperature, as follows:
DH(m2/s)=1.4×10−7exp(−13,400J/mol/RT)
DN(m2/s)=3.0×10−7exp(−76,150J/mol/RT)
Is it possible to purify hydrogen gas in this manner? If so, specify a temperature at which the process may be carried out, and also the thickness of metal sheet that would be required. If this procedure is not possible, then state the reason(s) why.
Answers
Answer:
T = 3460 K
Explanation:
See attachment for calculation.
Since the temperature we have is above the melting point of the metal, then we can conclude that it is too high for the diffusion process to be possible.
As you encounter unfamiliar key torms in your eText, how can you leamn their definitions? Note that key terms may oppoar in boid or in a diferent color in your eted Select all that apply. O Select the Search icon and enter the term into the seurch feld. A definitian will show up in the Key torms saction of Eie fesulfs. O Select the Playlist icon and select the module you want to hear O Select the Table of Contents or the Navigation icon and navigate to the Glossary. O Select the key term in your eText and a pop-up defintion wel appear
Answers
A) Select the Search icon and enter the term into the search field. A definition will show up in the Key Terms section of the search results.
What is Key Terms?Key Terms are words or phrases used to describe a concept or idea. They are often used in the field of academia to help define the scope of a particular study or research project. Key Terms are also used in business and legal documents to provide a concise and precise description of a concept or idea. By providing clear definitions for each key term, it helps to ensure that all parties involved in a discussion or agreement are on the same page.
C) Select the Table of Contents or the Navigation icon and navigate to the Glossary.
D) Select the key term in your eText and a pop-up definition will appear.
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How does concurrent engineering speed up product development?
A. The product and process are designed using computer-aided design.
B. The product and process are designed in series.
C. The product and process are designed in separate spaces.
D. The product and process are designed simultaneously.
Answers
Answer:
The product and process are designed simultaneously
Explanation:
PENN