A compound cylinder is formed by shrinking a tube of 250 mm internal diameter and 25 mm wall thickness onto another tube of 250 mm external diameter and 25 mm wall thickness, both tubes being made of the same material. The stress set up at the junction owing to shrinkage is
Answers
The question is incomplete. The complete question is :
A compound cylinder is formed by shrinking a tube of 250 mm internal diameter and 25 mm wall thickness onto another tube of 250 mm external diameter and 25 mm wall thickness, both tubes being made of the same material. The stress set up at the junction owing to shrinkage is 10 MN/m2. The compound tube is then subjected to an internal pressure of 80 MN/m2. Compare the hoop stress distribution now obtained with that of a single cylinder of 300 mm external diameter and 50 mm thickness subjected to the same internal pressure.
Solution :
Internal pressure = \($80 \ MN/m^2 $\)
Stress set up at the junction owing to shrinkage = \($10 \ MN/m^2 $\)
Therefore shrinkage at the outer tube at r = 0.15, \($\sigma_{r} = 0$\) and r = 0.125, \($\sigma_{r} = -10 \ MN/m^2$\)
∴ \($0=A-\frac{B}{(0.15)^2}=A-44.5B$\) .....................(i)
\($-10=A-\frac{B}{(0.125)^2}=A-64B$\) .................(ii)
By solving the above equations we get A = 22.85 and B = 0.514
Now, hoop stress at radius = 0.15 m :
A + 44.5 B = 22.85+44.5 (0.514)
= 45.7 MPa
Hoop stress at radius 0.125 m :
A + 64 B = 22.85 + 64 (0.514)
= 55.74 MPa
Now shrinkage in the inner tubes
At r = 0.10, \($\sigma_{r} = 0$\) and r = 0.125, \($\sigma_{r} = -10 \ MN/m^2$\)
\($0=A-\frac{B}{(0.1)^2}=A-100B$\) ....................(iii)
\($-10=A-\frac{B}{(0.125)^2}=A-64B$\) ...............(iv)
By solving the above equations,
A = -27.8 and B = -0.278
Now hoop stress at 0.125 m radius :
A + 64 B = -45.6 MPa
Hoop stress at 0.10 m radius:
A + 100 B = -55.6 MPa
Considering the internal pressure only on complete cylinder at r = 0.15, \($\sigma_{r} = 0$\) and r = 0.10 , \($\sigma_{r} = -80$\)
\($0=A-\frac{B}{(0.15)^2}=A-44.5B$\) .............(v)
\($-80=A-\frac{B}{(0.1)^2}=A-100B$\) ...........(vi)
∴ A = 64.2 and B = 1.44
At r = 0.15 m,
\($\sigma_{H} = A+44.5B$\)
\($=128.4 \ MN/m^2$\)
At r = 0.125 m,
\($\sigma_{H} = A+64B$\)
\($=156.4 \ MN/m^2$\)
At r = 0.125 m,
\($\sigma_{H} = A+100B$\)
\($=208.2 \ MN/m^2$\)
The stress for the combined shrinkage and the internal pressure are :
Outer tube
r = 015
\($\sigma_{H} = 128.4 + 45.1$\)
\($=174.1 \ MN/m^2$\)
r = 0.125
\($\sigma_{H} = 156.4 + 55.75$\)
\($=212.15 \ MN/m^2$\)
For inner tubes,
r = 0.125
\($\sigma_{H} = 156.4 - 45.6 = 110.8 \ MN/m^2$\)
r = 0.1
\($\sigma_{H} = 208.2 - 55.6 = 152.6 \ MN/m^2$\)
Related Questions
40. AASHTO assumes a deceleration value in calculating SSD of:
a. 14 ft /sec2
b. 11.2 ft /sec2
c. 9.6 ft /sec2
d. 10.2 ft /sec2
Answers
AASHTO assumes a deceleration value in calculating stopping sight distance (SSD) of B. 11.2 ft/s^2. This doesn't take any road defects into account.
_____ often offer Web server management and rent application software to businesses.
Answers
Hosting providers often offer Web server management and rent application software to businesses.
What is Web server?Companies that provide a service allowing individuals and businesses to make their websites accessible on the internet are known as hosting providers.
Web server management is among the solutions offered by hosting providers. It entails the oversight and upkeep of servers responsible for website hosting, guaranteeing their efficient operation, safeguarding them against threats, and optimizing their performance.
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A series RLC circuit is driven by an ac source with a phasor voltage Vs=10∠30° V. If the circuit resonates at 10 3 rad/s and the average power absorbed by the resistor at resonance is 2.5W, determine that values of R, L, and C, given that Q =5.
Answers
Answer:
R = 20Ω
L = 0.1 H
C = 1 × 10⁻⁵ F
Explanation:
Given the data in the question;
Vs = 10∠30°V { peak value }
V"s\(_{rms\) = 10/√2 ∠30° V
resonance freq w₀ = 10³ rad/s
Average Power at resonance Power\(_{avg\) = 2.5 W
Q = 5
values of R, L, and C = ?
We know that;
Power\(_{avg\) = |V"s\(_{rms\)|² / R
{ resonance circuit is purely resistive }
we substitute
2.5 = (10/√2)² × 1/R
2.5 = 50 × 1/R
R = 50 / 2.5
R = 20Ω
We also know that;
Q = w₀L / R
we substitute
5 = ( 10³ × L ) / 20
5 × 20 = 10³ × L
100 = 10³ × L
L = 100 / 10³
L = 0.1 H
Also;
w₀ = 1 / √LC
square both side
w₀² = 1 / LC
w₀²LC = 1
C = 1 / w₀²L
we substitute
C = 1 / [ (10³)² × 0.1 ]
C = 1 / [ 1000000 × 0.1 ]
C = 1 / [ 100000 ]
C = 0.00001 ≈ 1 × 10⁻⁵ F
Therefore;
R = 20Ω
L = 0.1 H
C = 1 × 10⁻⁵ F
When plotting a single AC cycle beginning at zero degrees and moving forward in time the cycles negative peak occurs at
A. 270°.
B. 180°
C. 360°
D. 90°
Answers
Answer:A 270 degrees
Explanation:
Help me please! Thank you so much!
Answers
Sorry sir i don't know the answer
why different types of
engines used gas turbine give reasons
Answers
Answer:
Four types of gas turbine engines are used to propel and power aircraft. They are the turbojet, turbofan, turboprop, and turboshaft.
Answer:
A gas turbine, also called a combustion turbine, is a type of continuous and internal combustion engine. The main elements common to all gas turbine engines are: ... Gas turbines are used to
Explanation:
Kinetic energy kx is 1/2mvx2. evaluate the mean square kinetic energy < kx2 >in one dimension for n2 molecules at 25°c (hint: in the derivation of < kx2 > use f (vx.) )
Answers
The mean kinetic energy of the N₂ molecules at 25 °C is 3593.519 joules per mole.
How to estimate the mean square kinetic energy associated to gas molecules
Let suppose that the gas sample behaves ideally. The Graham's law establishes a connection between the ideal gas model and the kinetic theory of gases.
In this question we need to use this law to estimate the average kinetic energy (Kₐ), in joules per mole, of a diatomic gas (N₂), which is defined by the following expression:
\(K_{a} = \frac{3}{2}\cdot R_{u}\cdot T\) (1)
Where:
\(R_{u}\) - Ideal gas constant, in joules per mole-Kelvin.\(T\) - Temperature, in KelvinIf we know that \(R_{u} = 8.314\,\frac{J}{mol\cdot K}\) and \(T = 288.15\,K\), then the average kinetic energy is:
\(K_{a} = \frac{3}{2}\cdot \left(8.314\,\frac{J}{mol\cdot K} \right) \cdot (288.15\,K)\)
\(K_{a} = 3593.519\,\frac{J}{mol}\)
The mean kinetic energy of the N₂ molecules at 25 °C is 3593.519 joules per mole. \(\blacksquare\)
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A coil of 500 turns and resistance 20 ohm is wound uniformly on an
iron ring of mean circumference 50 cm and area of cross-section 4 cm2. It is connected to a 24V DC supply. Under these conditions, the relative permeability of iron is
800. Calculate
(a) MMF of the coil,
(b) magnetizing force,
(c) total flux in the iron and (d) reluctance of the ring.
Answers
(a) Magnetizing force = 149.25 AT/m. (b) Total flux in the iron = 3.0156 * \(10^{-4\) Wb. (c) Reluctance of the ring = 4.98 * \(10^3\)AT/Wb.
A magnetic field is a vector field that describes the magnetic force experienced by a moving electric charge in the presence of a magnet, an electric current, or a changing electric field. It is generated by the motion of electric charges (the magnetic moments of elementary particles) and by the intrinsic magnetism of certain fundamental particles that comprise matter. Magnetic fields are used in a variety of applications, from magnetic storage devices like hard drives and credit cards to medical imaging machines like MRI scanners.
The solution to the given problem:Given parameters are:
N= 500 turns
R = 20 ΩU = 24
Vd = 50 cmA = 4 cm2
Relative permeability of iron is 800
(a) Calculation of MMF of the coil:
The MMF (magneto-motive force) of a coil is given as,
N*I
Where,N = Number of turns
I = Current flowing through the coil
Therefore, MMF = N * I = 500 * (24 / 20) = 600 A-T
(b) Calculation of magnetizing force:
First, we will calculate the magnetic field intensity at the center of the coil using the given formula:H = NI / (2r)where,N = Number of turns
I = Current flowing through the coil
r = radius of the coil (mean circumference / 2 * π)H = 500 * (24 / 20) / (2 * 0.79577) = 298.49 A/m
Now, the magnetizing force can be calculated as,F = H * l
where,l = length of the magnetic pathF = 298.49 * (50 / 100) = 149.25 AT/m(c) Calculation of total flux in the iron:Total flux (Φ) in the iron is given as,Φ = B * A where
,B = magnetic field intensityA = area of the cross-section of the ironTherefore, we need to calculate the magnetic field intensity inside the iron first.Using the given parameters, we can calculate the magnetic field inside the iron as,B = μr * μ0 * H
where,μr = Relative permeability of iron = 800μ0 = Permeability of free space = 4 * π * 10^-7T * m/AH = Magnetic field intensity = 298.49 A/mPutting all the values in the formula,B = 800 * 4 * π * 10^-7 * 298.49 = 0.7539 TTherefore,Φ = 0.7539 * 4 * 10^-4 = 3.0156 * 10^-4 Wb(d) Calculation of reluctance of the ring:The reluctance (R) of the iron ring is given as,R = l / (μr * μ0 * A)
where,l = length of the magnetic pathμr = Relative permeability of ironμ0 = Permeability of free spaceA = area of the cross-section of the ironPutting the values in the formula,R = (50 / 100) / (800 * 4 * π * 10^-7 * 4 * 10^-4) = 4.98 * 10^3 AT/WbAnswer:MMF of the coil = 600 A-T
Magnetizing force = 149.25 AT/m
Total flux in the iron = 3.0156 * \(10^{-4\) Wb
Reluctance of the ring = 4.98 * \(10^3\)AT/Wb
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A picture showing the actual parts of a circuit and their connection is called_______ diagram
Answers
Answer:
a picture showing the actual parts of a circuit and their connection is call a Circuit diagram
A sand deposit contains three distinct horizontal layers of equal thickness. The hydraulic conductivity of the upper and lower layers is 10-3 cm/sec and that of the middle is 10-2 cm/sec. What are the equivalent values of the horizontal and vertical hydraulic conductivities of the three layers, and What is their ratio?
Answers
Answer:
Kh/Kv = 2.8
Explanation:
The horizontal conductivity = K1H1+K2H2+K3H3/(H1+H2+H3)
= K1H+K2H+K3H/3H
= K1+K2+K3/3
= 10-3 cm/sec + 10-3 cm/sec + 10-2 cm/sec/3
= 4 * 10^-3 cm/s
Vertical conductivity
= H+H+H/(H/K1 +H/K2+H/K3)
= 3/(1/K1+1/K2+1/K3)
= 1/700 cm/s
Kh/Kv = 4 * 10^-3 cm/s/ 1/700 cm/s
Kh/Kv = 2.8
The reading on the 0 to 25 mm micrometer provided is
A. 15.20
B. 15.70
C. 15.45
D. 0.1520
Answers
Based on the image attached, the reading of micrometer is= 15.20.
What do the numbers on a micrometer represent?You will see a line of numbers running down the barrel of your micrometer, starting with the barrel scale. On the barrel scale, each number corresponds to 0.100. Looking at the barrel, 1 equals 0.100, 2 equals 0.200, 3 equals 300, and so on. The distance between each tick mark and the larger numbers on the barrel is 0.025, or 25 thousandths.
Note that micrometer is one that is also referred to as a micrometer screw gauge—is a tool with a calibrated screw that is frequently used for precise measurement of components in mechanical engineering, and others.
Looking at the image, you will see the stop ends at 15 and and 20 so adding them together will be option A. 15.20.
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when defining an ada abstract data type, where are the specification, representation and implementation customary placed, respectively?
Answers
When defining an Ada abstract data type, the specification, representation, and implementation are typically placed in different sections of the program, as follows:
Specification: The specification of the abstract data type defines its interface and behavior without revealing the implementation details. It includes the type definition, subprograms, and package specifications. The specification is usually placed in a separate package or package specification file (.ads) and serves as the public interface for the abstract data type.
Representation: The representation of the abstract data type defines the internal structure and layout of the data. It includes the private type declaration and any private variables or components needed for the implementation. The representation is typically placed in the private part of the package or a separate private package (.adb) that accompanies the specification.
Implementation: The implementation of the abstract data type consists of the actual code that implements the behavior and operations defined in the specification. It includes the subprogram bodies and any necessary helper functions or procedures. The implementation is usually placed in the body of the package (.adb) or in separate implementation-specific files.
By separating the specification, representation, and implementation, Ada promotes encapsulation and information hiding. The specification defines the public interface, while the representation and implementation remain hidden and can be modified without affecting the code that uses the abstract data type. This allows for modularity, abstraction, and easier maintenance of the program.
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There is an AC series circuit that is constructed of a 150.0-ohm resistor along with 300.0 ohm inductive reactance and 200.0 ohm capacitive reactance. What is the difference in phase between the current and resistor voltage of the circuit
Answers
Answer:
0°
Explanation:
The resistor voltage has the same phase as the circuit current. There is no phase difference.
Answer:
0° (zero degree)Explanation:
the difference in pjase between the current and resistor voltage of the given 150.0 ohm, 300.0 ohm and 200.0 ohmOne of the requirements for tennis balls to be used in official competition is that, when dropped onto a rigid surface from a height of 120 in., the height of the first bounce of the ball must be in the range 55 in. <= h <= 60 in. Determine the range of the coefficients of restitution of the tennis balls satisfying this requirement. Any ideas on this?
Answers
Answer:
At temperature is and relative humidity is 86% therefore, the humidity ratio is 0.0223 and the specific volume is 14.289
At temperature is and Relative humidity is 40% therefore, the humidity ratio is 0.0066 and the specific volume is 13.535.
To calculate the mass of air can be calculated as follows:
Now , we going to calculate the volume,
The time which is required to fill the cistern can be calculated as follows:
Now, putting the value in above formula we get,
Therefore, the hours required to fill the cistern is 4.65 hours.
Explanation:
The heater core is made from tubes that have thin metal ________ connected to them, which increase the surface area tremendously.
Answers
The heater core is made from tubes that have thin metal fins connected to them, which increase the surface area tremendously. This allows the heat from the hot coolant flowing through the tubes to be transferred to the air that passes over the fins and through the heater core.
The heater core is an important part of the car's heating system and is responsible for providing heat to the cabin. When the engine is running, hot coolant from the engine is circulated through the heater core. The heater fan then blows air over the heater core fins, which in turn heats the air, and this hot air is then directed into the car's cabin through the vents.If the heater core is damaged or clogged, the heating system will not work properly, and the cabin will not be able to be heated.
Symptoms of a bad heater core include a lack of heat, a sweet smell coming from the vents, and fogging of the windshield. The heater core is typically located behind the dashboard and can be difficult to access for repairs. In some cases, the entire dashboard may need to be removed to replace the heater core.
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Engineer drawing:
How can i draw this? Any simple way?
Answers
Consider a drug-eluting balloon catheter deployed into a blood vessel. The balloon is inflated to perfectly adhere to the vessel walls. Drug is released from the outer surface of the balloon and diffuses radially through the endothelial tissue only in the r-direction. Let the outside radius of the balloon be r = R_0, where the drug has a constant concentration c_0. The drug diffuses into the tissue as far as r = R, where the concentration of the drug becomes zero.
Assume cylindrical geometry, steady state conditions and no chemical reaction involving the drug. The drug diffusion coefficient in tissue is D.
(a) Find an expression for the profile c(r) inside the tissue (i.e. from R_0 to R).
(b) Determine the diffusive flux at the outer surface of the balloon.
Answers
Answer:
a) Cr = Co - Fx / D
b) ΔC / Δx = ( CR - Cr ) / ( xR - xRo )
Explanation:
A) Derive an expression for the profile c(r) inside the tissue
F = DΔC / X = D ( Co - Cr ) / X ------ 1
where : F = flux , D = drug diffusion coefficient
X = radial distance between Ro and R
Hence : Cr = Co - Fx / D
B) Express the diffusive flux at outer surface of the balloon
Diffusive flux at outer surface = ΔC / Δx = CR - Cr / xR - xRo
When storing used oil, it need to be kept in________ container?
Answers
Answer: In a clean plastic or metal container with a tightly sealed lid
1.question 1which of the following are members of the data science team?(select all that apply)
data cleaners
marketing professionals
data engineers
data scientists
machine learners
data managers
Answers
The members of a data science team typically include data scientists, data engineers, and machine learners.
Data science is an interdisciplinary field that involves extracting insights and knowledge from data using various techniques and tools. A data science team comprises professionals with different roles and responsibilities, each contributing to the overall data-driven decision-making process.
Data scientists are core members of the team who possess strong analytical skills and expertise in statistical analysis, machine learning, and data modeling. They are responsible for extracting meaningful insights from data and developing predictive models.
Data engineers play a crucial role in managing and organizing data infrastructure. They are skilled in data extraction, transformation, and loading (ETL) processes, database management, and data pipeline development.
Machine learners focus on designing and implementing machine learning algorithms and models. They have a deep understanding of statistical methods and algorithms and apply them to solve complex problems and make predictions based on data.
While data cleaners, marketing professionals, and data managers may contribute to the data science workflow, they are not typically considered core members of the data science team. Data cleaners are responsible for data preprocessing and data quality control, marketing professionals use data insights for marketing strategies, and data managers oversee data storage and governance. However, their roles may overlap with the data science team in specific projects or organizations.
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What might be the effects if one of the AC unit fans stopped working? Explain in terms of energy and pressure and temperature.
Answers
If the AC unit fan is not spinning, the first thing to check is the circuit breaker. Take a look at the circuit breaker associated with the AC unit and see if it's been tripped. A circuit breaker may trip from overheating due to outside temperatures and the motor's heat.
Anybody know anything?
Answers
Answer:
1. Be sure to use the correct type and size of screwdriver on every kind of screw to avoid injury to yourself or damage to equipment.
2. It is also unsafe to carry screwdrivers in pockets or to use them around moving machinery.
3. Screwdrivers are not safe to use as hammers or chisels or for prying.
Explanation:
When you hover over an edge or point, you are activating ____________ in SketchUp?
A. Zoom Focus
B. Inference Tools
C. Drawing Tools
D. Selection Filters
Answers
I remember this bc it is a question in my test from last week lol
the instrument used to measure middle ear function is a(n)
Answers
The instrument used to measure middle ear function is a tympanometer.
What is the tympanometer?A tympanometer is a medical device used to evaluate the functionality of the middle ear. It tests the function of the eardrum (tympanic membrane) and the conduction bones (ossicles) in the middle ear by adjusting pressure and measuring the movement of the eardrum in response.
The purpose of a tympanometer is to detect fluid accumulation in the middle ear, a ruptured eardrum, or a problem with the ossicles' conduction. It can also provide information on hearing loss and the effectiveness of medical treatment.
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The instrument used to measure middle ear function is a Tympanometer.Tympanometer is the medical device used for measuring middle ear function. It's a non-invasive tool that evaluates the functionality of the middle ear by measuring the movement of the eardrum (tympanic membrane).
The tympanometer is used to measure the compliance and mobility of the tympanic membrane and the ossicular chain. The procedure is painless and straightforward; a small probe is placed in the ear canal to deliver a brief pulse of air pressure, creating a change in the air pressure in the ear canal. The tympanometer then measures the amount of energy that is reflected back from the eardrum. The result is a graph that indicates the degree of mobility and compliance of the tympanic membraneIt can help the audiologist identify potential hearing problems, make recommendations for further diagnostic testing or treatment, and monitor the effectiveness of medical or surgical interventions.
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The ___ outlines the problem in clear terms.
Answers
Answer: Problem Statement
Explanation:
When going about designing a new product or an improvement to an existing product, it is important to state the problem in a clear and concise way so that the designers know precisely what they are working towards.
This is where a Problem statement comes in. It states the problem in a concise manner and juxtaposes the current shortcomings of the current system against what the system should ideally be in such a way that even though the solution is clear, it is not so precise that it makes the designers narrow-minded.
Write a program that inputs two strings from the user and checks if they are the same. This program needs to be case insensitive Your program needs to use recursion (write a recursive method : public static boolean isSame( String s1, String s2)) and report "Both Strings are Same" or "Both Strings are Not Same" depending on the the return value of the method. The method returns true if the string are of length 0 or they are the same. If any of the letters are not the same or the strings do not have the same length, then the method returns false. Please submit the code and screen shot of output for this part
Answers
An effective method for recursively comparing strings can be described as follows.
The AlgorithmInitiate the algorithm.
Receive two character sequences from the user: s1 and s2.
Invoke the recursive function named isSame(s1, s2).
The isSame function would consist of:
Verify whether both s1 and s2 contain no characters. If that is the case, then indicate a positive result.
Verify whether the dimensions of s1 and s2 display contrasting values. If not, then give a false response.
Transform the opening letters of s1 and s2 into lowercase.
If the initial letters are identical:
Invoking the same function repeatedly with the substrings s1[1:] and s2[1:] is done recursively.
Provide the outcome of the operating procedure that repeats itself.
In case the initial characters are not the same, decline the statement.
Returning to the primary program:
If the evaluation of isSame returns true, output "The two strings are identical".
If isSame doesn't yield a true outcome, output the message "The strings do not match."
Terminate the computational procedure.
This methodology employs recursion for sequential comparison of individual characters in the strings, checking for equality. If there is any difference in character or the length of strings is not equal, it will result in false.
Alternatively, it produces the value of true in the event that both strings are void, signaling that a thorough comparison of all characters has been carried out.
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Which of the following best describes an objective statement?
A.an understanding to follow certain procedures
B.a goal or aim
C.a subset of specific information
D.a written contract
Answers
Answer:
B
Explanation:
A short statement that describes what you want
A goal or aim best describes an objective statement.
What is objective statement?
Objectives are utilised in many different corporate and job-search scenarios. They are brief sentences that express just what you desire. While your ultimate objective may be to find work, your resume statement may mention that you wish to work as a nurse. In a business setting, aim statements contain specifics on how you intend to attain a corporate goal. In the past, one of the most typical places to see goal statements was in resumes. They were the one to three lines of text at the top of a resume that notified an employer a little about the candidate's level of experience and the type of job they desired.
An objective statement is a brief, position-centered statement that describes the value you can provide and the needs you can meet. A concise explanation of the skills and qualifications you will offer to a position may be included in an objective. A professional summary is more detailed and longer than an objective statement.
So, the right answer is B.
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when hammer test is preferable than concrete cubic test?
Answers
Answer:
Rebound Hammer test is a Non-destructive testing method of concrete which provide a convenient and rapid indication of the compressive strength of the concrete. The rebound hammer is also called as Schmidt hammer that consist of a spring controlled mass that slides on a plunger within a tubular housing.
The operation of rebound hammer is shown in the fig.1. When the plunger of rebound hammer is pressed against the surface of concrete, a spring controlled mass with a constant energy is made to hit concrete surface to rebound back. The extent of rebound, which is a measure of surface hardness, is measured on a graduated scale. This measured value is designated as Rebound Number (rebound index). A concrete with low strength and low stiffness will absorb more energy to yield in a lower rebound value.
Specially formulated ultra-high performance concrete has compressive strengths that approach what?
6,000 psi
20,000 psi
15,000 psi
30,000 psi
There is no such thing as "Special formulated, ultra-high performance concrete."
50,000 psi
Answers
Given,
greater compressive strength = 6,000 psi
mean compressive strength(μ) = 7000 psi
standard deviation (σ) = 420 psi
P(X < 6000)
Z = - 2.38
P(Z<-2.38) = Area to left - 2.38
from Z table
P(X < 6000) = P(Z<-2.38) = 0.0087
P(fail) = P(X< 6000) = 0.0087 = 0.87
Ultra filtration is filtration through a medium (such as a semipermeable capillary wall) which allows small molecules (as of water) to pass but holds back larger ones (as of protein).
Filtration is the process of separating solid particles from a liquid or gas by passing the mixture through a filter medium, which allows the fluid to pass through while trapping the solid particles.
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You should have at least a ___ mph speed advantage when passing another vehicle
Answers
A driver should have at least a 10 mph speed advantage when overtaking (passing) another vehicle.
What is a speed limit?A speed limit refers to the maximum amount of speed that is legally permitted or allowed in a specific area for safety. Thus, this limit must be abided and strictly adhered to by all road users such as drivers of a vehicle.
According to the highway traffic code and regulations, a driver should have at least a 10 mph speed advantage when overtaking (passing) another vehicle.
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Discuss the procedure for inspecting field miter joints.
What checks should an inspector conducts to ensure proper
welding on site?
What are the possible consequences of substituting one nail type
wit
Answers
Answer:
Explanation:Inspecting field miter joints in construction involves a systematic procedure to ensure the joints are properly aligned, secured, and meet the required standards. The following checks should be conducted by an inspector:
Alignment: The inspector should verify that the miter joints are properly aligned and form a precise 90-degree angle. This can be checked using a square or other measuring tools.
Fit and Gap: The inspector should examine the fit between the mitered surfaces to ensure they fit tightly without excessive gaps. Gaps can compromise the strength and appearance of the joint.
Joint Integrity: The inspector should inspect the joint for any signs of separation, cracking, or incomplete welding. This includes checking for proper fusion and penetration of the welds.
The inspector should assess the quality of the welds by examining their appearance, size, and consistency. Welds should be smooth, free of defects such as porosity or undercut, and meet the specified weld size requirements.
Strength and Stability: The inspector should ensure that the miter joint is structurally sound and capable of bearing the anticipated loads. This involves evaluating the overall stability, rigidity, and connection strength of the joint.
Substituting one nail type with another can have various consequences depending on the context and intended use. It is important to consider the following factors:
Strength and Load-Bearing Capacity: Different nail types have varying levels of strength and load-bearing capacity. Substituting a weaker nail for a stronger one can compromise the structural integrity of the joint, leading to failure or reduced performance under load.
Compatibility: Nails are designed for specific applications and materials. Substituting one nail type with another that is not compatible can result in poor fastening, reduced holding power, or damage to the materials being joined.
Corrosion Resistance: Different nail types have different levels of corrosion resistance. Substituting a nail with lower corrosion resistance in an application where high corrosion resistance is required can lead to premature deterioration and weakening of the joint.
Code Compliance: Substituting nails without considering the applicable building codes or standards can result in non-compliance, potentially leading to safety issues and legal liabilities.
In summary, proper welding on-site requires thorough inspection of field miter joints to ensure alignment, fit, joint integrity, weld quality, and overall strength. When substituting one nail type with another, it is crucial to consider factors such as strength, compatibility, corrosion resistance, and compliance with building codes to avoid compromising the integrity and performance of the joint.
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