A manufacturing process that unintentionally introduces cracks to the surface of a part was used to produce load-bearing components. The design requires that the component be able to withstand a stress of 450MPa. A component failed catastrophically in service. You are asked to do a failure analysis to determine whether the component failed due to an overload in service or flaws from the manufacturing process. The manufacturer claims that the components were polished to remove the cracks and inspected to ensure that no surface cracks were larger than 0. 5mm, which means the component could stand a stress greater than 450MPa. The manufacturer believes the component failed due to operator error. It has been independently verified that the 5cm diameter cylindrical part was subjected to a axial tensile load of 1x106N. The component is made from a material, which has a fracture toughness of and an ultimate 75????Pamtensile strength of 600MPa. Assume Y=1. 12 for the external cracks. Who is at fault for the component failure, the manufacturer or the operator, or both? Show your work to support your answer

Answers

Answer 1

The primary responsibility lies with the manufacturer in case of component failing due to high tensile strength or heavy stress.

To determine whether the component failed due to an overload in service or flaws from the manufacturing process, we need to calculate the stress intensity factor (K) of the component.

The stress intensity factor (K) can be calculated using the formula:

K = Y * σ * √(π*a)

where Y is the geometric factor for the type of crack, σ is the applied stress, and a is the length of the crack.

Assuming a surface crack of length 0.5mm, we can calculate the stress intensity factor as:

K = 1.12 * 450MPa * √(π*0.5mm)

K = 848.87 MPa√mm

The fracture toughness (Kc) of the material is given as an ultimate tensile strength (σu) of 600MPa. Using the relation between Kc and σu:

Kc = σu * √(π*c)

where c is the critical crack length, we can calculate the critical crack length for this material as:

c = (Kc / (σu * √π))^2

c = (75MPa√m / (600MPa * √π))^2

c = 1.08E-7 m = 0.108 mm

Since the length of the surface crack (0.5mm) is larger than the critical crack length (0.108mm), we can conclude that the component failed due to flaws from the manufacturing process, rather than an overload in service. The manufacturer is therefore at fault for the component failure.

It is important to note that the operator may still be partially responsible if they were aware of the flaws in the component and used it in service anyway. However, based on the given information, the primary responsibility lies with the manufacturer.

Learn more about Tensile strength at:

https://brainly.com/question/15236598

#SPJ11


Related Questions

the properly exposed radiograph was obtained for an aluminum weld 3 in thick with the source 60 in. from the film. the geometric unsharpness, however, was found to be unsatisfactory and source-to film distance was increased to 120 in. what would be a proper exposure time for this new placement, compared to the original exposure time t 0 ?

Answers

When the source-to-film distance was increased from 60 in. to 120 in., the geometric unsharpness was improved. This means that the image on the radiograph will be sharper and clearer, making it easier to identify any defects or issues with the weld.

However, the increased distance will also result in a decrease in radiation intensity, which will affect the exposure time required to obtain a properly exposed radiograph.To determine the proper exposure time for the new placement, we can use the inverse square law. This law states that the intensity of radiation is inversely proportional to the square of the distance from the source.So, if the original exposure time was t0, and the distance was doubled to 120 in., the new exposure time would need to be increased by a factor of 4 (2 squared) to maintain the same radiation intensity at the film.Therefore, the proper exposure time for the new placement would be 4 times the original exposure time, or 4t0.The proper exposure time for the new placement would need to be increased to compensate for the decrease in radiation intensity due to the increased source-to-film distance. Using the inverse square law, we can determine that the new exposure time should be 4 times the original exposure time.

For such more question on radiograph

https://brainly.com/question/14318920

#SPJ11

Technician a says that since north american clutch manufacturers no longer use asbestos there is no need to be concerned by clutch dust. technician b says that compressed air is the best way to clean the clutch housing when performing a clutch replacement. who is correct?

Answers

Neither technician A nor technician B is completely correct regarding the best way to clean the clutch dust.

Technician A is partially correct that North American clutch manufacturers no longer use asbestos, which is a harmful substance found in older clutch materials. However, this does not mean that clutch dust is not a concern. Newer clutch materials still produce dust that can be harmful if inhaled, so precautions should still be taken.

Technician B is incorrect in saying that compressed air is the best way to clean the clutch housing when performing a clutch replacement. Compressed air can actually blow the dust around, causing it to spread and potentially exposing the technician to harmful particles. It is recommended to use a wet method, such as a damp cloth or a brake cleaner, to clean the clutch dust housing and surrounding area.

Therefore, neither technician A nor technician B is completely correct, and it is important to follow proper safety procedures when working with clutch components.

Learn more about Decision making at:

https://brainly.com/question/25870371

#SPJ11

Which option identifies the most likely outcome in the following scenario?
Engine, Inc. conducted a life cycle assessment (LCA) on its standard automobile engine. The LCA determined
that too much heat was lost through the engine, requiring large amounts of fuel to be consumed.
The company will conduct an impact analysis.
The company will develop a biodiesel engine.
O The company will increase the scope of the study.
O The company will redesign the engine to lose less heat.

Answers

Whith regard to the life cycle assessment (LCA), the option that identifies the most likely outcome in the following scenario is: "the company will redesign the engine to lose less heat.

Why is this so?

In this case, the most likely conclusion is that the manufacturer will alter the engine to waste less heat. This is because the life cycle assessment discovered that too much heat was lost via the engine, necessitating the consumption of huge amounts of gasoline.

Redesigning the engine to lose less heat might address this issue while also potentially resulting in more efficient fuel usage.

Conducting an impact analysis or broadening the scope of the study would not directly address the issue of engine heat loss, and developing a biodiesel engine would be a different approach to addressing the issue of fuel consumption rather than heat loss.

Learn more about  life cycle assessment at:

https://brainly.com/question/31573010

#SPJ1

How the atmosphere will react when there is vertical (upward) motion of air

Answers

Vertical motion of air causes changes in atmospheric conditions. As air rises, it cools, and as it falls, it warms.

What happens to the atmosphere when air moves upward?

As air rises, it experiences a decrease in pressure, which causes it to expand and cool. This cooling can lead to the formation of clouds and precipitation, as the moisture in the air condenses.

As the air continues to rise, it eventually reaches a point where the temperature and pressure are too low for it to continue rising, and it begins to sink back towards the ground. This sinking air can cause warming and drying of the atmosphere, which can lead to clear skies and dry conditions.

Learn more about Precipitation

brainly.com/question/20925010

#SPJ11

1- Write a MIPS assembly language program to do the following: • Read a string and store it in memory. Limit the string length to 100 characters. Then, convert each letter to a number. The letter 'A' or 'a' is equal to 1. Letter 'B' or 'b' is equal to 2. Finally, the letter 'Z' or 'z' is equal to 26. All other characters, digits, or spaces should be discarded (not counted). • Check that the user input is a string if not ask him to enter it again • Write a function that computes the string value as the sum of all letter values, and displays the string value as an integer. . At the end, ask the user whether he wants to repeat the program. Here is a sample run: Enter a string (max 100 chars): MIPS programming is fun. String value = 257... Repeat (Y/N)? n...​...I can solve the question ...if anyone want this solution ,say that

Answers

The MIPS assembly language program based on the question prompt is given below:

The Program

.data

input: .space 101     # allocate space for string input

prompt: .asciiz "Enter a string: "

.text

main:

   li $v0, 4          # print prompt

   la $a0, prompt

   syscall

   li $v0, 8          # read input string

   la $a0, input

   li $a1, 100

   syscall

   move $t0, $zero    # initialize index to 0

   li $t1, 1          # initialize letter A or a to 1

   li $t2, 26         # initialize letter Z or z to 26

loop:

   lb $t3, ($a0)      # load byte from input

   beqz $t3, exit     # if byte is 0 (end of string), exit loop

   addi $a0, $a0, 1   # increment input pointer

   blt $t3, 65, loop  # if byte < 'A', continue to next byte

   bgt $t3, 122, loop # if byte > 'z', continue to next byte

   bgt $t3, 90, check_lower # if byte > 'Z', check if lower case letter

   subi $t4, $t3, 64  # convert letter A to 1, B to 2, etc.

   j print_num

check_lower:

   blt $t3, 97, loop  # if byte < 'a', continue to next byte

   subi $t4, $t3, 96  # convert letter a to 1, b to 2, etc.

print_num:

  sb $t4, ($t0)     # store converted letter in memory

   addi $t0, $t0, 1   # increment index

   j loop

exit:

   li $v0, 10         # exit program

   syscall


Read more about programs here:

https://brainly.com/question/1538272

#SPJ1

A horizontal pipe carries fluid in fully developed turbulent flow. The static pressure difference measured between two sections is 750 psi. The distance between the sections is 15 ft, and the pipe diameter is 3 in. Calculate the shear stress, Tw, that acts on the walls

Answers

The shear stress acting on the walls of the pipe is 6.25 psi.

To calculate the shear stress, Tw, acting on the walls of the pipe, we can use the equation:

Tw = (dp/dx) × (D/4)

Where dp/dx is the static pressure gradient, D is the diameter of the pipe, and Tw is the shear stress.

Given that the static pressure difference is 750 psi and the distance between the sections is 15 ft, we can calculate the static pressure gradient as:

dp/dx = (750 psi) / (15 ft) = 50 psi/ft

Also, the diameter of the pipe is given as 3 in, which is equivalent to 0.25 ft.

Substituting these values into the equation, we get:

Tw = (50 psi/ft) × (0.25 ft/2) = 6.25 psi

In fully developed turbulent flow, the fluid particles move in random directions and interact with each other, creating eddies and vortices. This results in high fluid velocity and shear stress along the walls of the pipe. The shear stress is the force per unit area acting parallel to the wall, and it is important in designing and analyzing the strength and stability of pipelines and other fluid transport systems.

You can learn more about shear stress at: brainly.com/question/14418799

#SPJ11

The first step when using object-oriented design is to.

Answers

The first step when using object-oriented design is to identify the objects or concepts that are relevant to the problem being solved.

This involves analyzing the problem domain and breaking it down into smaller components or objects that can be modeled using classes in the programming language.

These objects should have well-defined responsibilities and behaviors, and interact with each other to achieve the desired functionality.This step is crucial as it sets the foundation for the entire design process and helps to ensure that the resulting software is both efficient and effective. By carefully identifying and defining the objects, developers can create a clear and organized structure that makes it easier to maintain and update the software over time.

In conclusion, the first step in object-oriented design is to identify and define the relevant objects or concepts that will be used to solve the problem. This involves careful analysis and consideration of the problem domain, and lays the foundation for the entire design process.

To know more about object-oriented design visit:

https://brainly.com/question/28731103

#SPJ11

What course of action should an architect or civil engineer take if the proposed slope of the building sewer is less than 1 percent (1/8 in. of drop per foot) of pipe

Answers

If the proposed slope of the building sewer is less than 1 percent, an architect or civil engineer should revise the design to increase the slope to meet the minimum requirement of 1/8 inch of drop per foot of pipe.

The slope of a building sewer is critical for the proper functioning of the drainage system. If the slope is too shallow, wastewater can become stagnant, leading to blockages and backups. Therefore, it is important to ensure that the slope meets the minimum requirement of 1/8 inch of drop per foot of pipe.

If the proposed slope is less than the required slope, the architect or civil engineer should revise the design to increase the slope by adjusting the alignment of the pipe or increasing the size of the pipe.

This may require additional excavation or demolition work, but it is necessary to ensure the proper functioning of the building's drainage system.

For more questions like Engineer click the link below:

https://brainly.com/question/31140236

#SPJ11

The ventilating fan of the bathroom of a building has a volume flow rate of 32 l/s and runs continuously. If the density of air inside is 1. 20 kg/m3, determine the mass of air vented out in one day. The mass of air is kg

Answers

The mass of air vented out in one daywould be approximately 3,110.4 kg.

What is the mass of air vented out in one day?

The problem provides information about the volume flow rate of a ventilating fan in a bathroom and the density of air inside the building. Using this information, we can calculate the mass of air vented out in one day.

To do this, we need to convert the volume flow rate into the mass flow rate by multiplying it with the density of air.

Then, we can convert the mass flow rate into the mass of air vented out in one day by multiplying it with the number of seconds in one day. Solving the given problem, the mass of air vented out in one day would be approximately 3,110.4 kg.

Learn more about mass

brainly.com/question/19694949

#SPJ11

Show the Hamming code encodings of the following bit strings: 0100: 0010: The following encodings contain an error. Show the corrected 7-bit encodings: 1110110: 1101110:

Answers

The full Hamming code for 1101110 is:
1101110 -> 0011101

To show the Hamming code encodings of the bit strings 0100 and 0010, we first need to determine how many parity bits we need to add. For a data word of n bits, the number of parity bits required is the smallest integer r that satisfies the inequality 2^r ≥ n + r + 1.

For 4-bit data words like 0100 and 0010, we need to add 3 parity bits, giving us a 7-bit Hamming code. The parity bits are inserted at positions that are powers of 2, with position 1 being the least significant bit.

So the Hamming code encodings for 0100 and 0010 would be:

0100 -> 0111001
0010 -> 0011011

To show the corrected 7-bit encodings for the bit strings 1110110 and 1101110, we need to first check for errors. We can do this by calculating the parity bits using the same method as above, and comparing them to the received bits.

For 1110110, the calculated parity bits are:

p1 = 1 ⊕ 1 ⊕ 0 ⊕ 1 = 1
p2 = 1 ⊕ 0 ⊕ 1 ⊕ 0 = 0
p3 = 1 ⊕ 1 ⊕ 1 ⊕ 0 = 1
p4 = 1 ⊕ 1 ⊕ 1 ⊕ 0 = 1
p5 = 0 ⊕ 1 ⊕ 1 ⊕ 0 = 0
p6 = 1 ⊕ 1 ⊕ 0 ⊕ 1 = 1
p7 = 1 ⊕ 1 ⊕ 0 ⊕ 1 = 1

So the full Hamming code for 1110110 is:

1110110 -> 1011011

We can see that there is an error in the 5th bit, which should be a 1 instead of a 0. To correct this error, we simply flip the 5th bit:

1110110 -> 1011111 (corrected)

For 1101110, the calculated parity bits are:

p1 = 0 ⊕ 1 ⊕ 0 ⊕ 1 = 0
p2 = 0 ⊕ 1 ⊕ 1 ⊕ 0 = 0
p3 = 1 ⊕ 1 ⊕ 0 ⊕ 1 = 1
p4 = 1 ⊕ 1 ⊕ 0 ⊕ 1 = 1
p5 = 1 ⊕ 1 ⊕ 1 ⊕ 0 = 1
p6 = 0 ⊕ 1 ⊕ 1 ⊕ 0 = 0
p7 = 1 ⊕ 1 ⊕ 1 ⊕ 0 = 1

We can see that there is an error in the 2nd bit, which should be a 1 instead of a 0. To correct this error, we simply flip the 2nd bit:

1101110 -> 1111101 (corrected)

Know more about Hamming code here:

https://brainly.com/question/9962581

#SPJ11

) if you want to do a thin film liftoff process, do you prefer cvd or evaporation? why?

Answers

CVD (Chemical Vapor Deposition) and evaporation are two common methods for depositing thin films.

CVD involves the use of chemical reactions to deposit thin films onto substrates, while evaporation involves heating a source material until it vaporizes and then allowing the vapor to condense onto a substrate. The choice between these two methods for thin film liftoff processes would depend on various factors such as the desired properties of the thin film, the substrate material, and the cost of the process. Ultimately, the decision would depend on the specific requirements and constraints of the project.

Know more about Chemical Vapor Deposition here:

https://brainly.com/question/14551642

#SPJ11

The first step when using object-oriented design is to

Answers

The first step when using object-oriented design (OOD) is to identify and define the key components, called classes, within the system. This process involves understanding the problem domain, breaking it down into manageable parts, and defining the relationships and interactions among these parts.

Classes represent real-world entities or concepts and have attributes and methods. Attributes describe the properties or characteristics of a class, while methods define the actions or behaviors that a class can perform. To establish these classes, you should analyze the requirements and consider any existing constraints or limitations.

Once the classes are defined, you'll need to determine their relationships, which are typically represented using inheritance, aggregation, and association. Inheritance is a way for one class to inherit the attributes and methods of another, while aggregation and association describe the "has-a" and "uses-a" relationships between classes, respectively.

As you proceed with OOD, it's essential to focus on modularity, encapsulation, and abstraction. Modularity refers to the separation of functionality into independent, interchangeable modules. Encapsulation is the practice of bundling data and methods within a class, restricting access to certain parts of the object. Abstraction is the simplification of complex systems by presenting only the essential features and hiding implementation details.

In conclusion, the first step in OOD is to identify classes, define their attributes and methods, and establish relationships among them, while adhering to principles of modularity, encapsulation, and abstraction. This process lays the foundation for effective and efficient software development.

Learn more about object-oriented design (OOD) here: https://brainly.com/question/30174085

#SPJ11

POWER ELECTRONICS OCTINOV 2017 69) (1) Using the transistor analogy, show that the anode Current (IA) for SCR Is given by: In = aw₂ Ig + ICBOIT ICBDR Where a, and as are transistor 1- (x₁+x₂) Current gains, ICBO, $ICB02 ​

Answers

Answer:

To show that the anode current (IA) for SCR is given by the equation:

IA = a*w2*Ig + ICBO*IT/ICDR

using the transistor analogy, we start by considering the SCR equivalent circuit as shown below:

```

     |----|     |----|

  IG | T1 |-----| T2 |----+

     |____|     |____|    |      |----|

                          |-----| D1 |---| ANODE (A)

                               |____|

```

where T1 and T2 are equivalent transistors of the SCR and D1 is the diode connected in parallel with T2.

Now, we can apply the transistor equations to this circuit:

- For T1: IE1 = IB1 + IC1

- For T2: IE2 = IB2 + IC2

Also, we have the current balance equation at the anode:

IA = IC1 + IC2 + ID1

where ID1 is the diode current.

Using the transistor current gains, we have:

IC1 = a*w1*IB1

IC2 = a*w2*IB2

where w1 and w2 are the base widths of T1 and T2, respectively.

For the diode, we can use the exponential diode equation:

ID1 = IDO*(exp(VD1/Vt) - 1)

where IDO is the reverse saturation current, VD1 is the diode voltage, and Vt is the thermal voltage.

At steady-state, we have:

IG = IB1 = IB2

VD1 = 0

ICBO = IC1/IB1

ICDR = IC2/IB2

Substituting these equations in the current balance equation, we get:

IA = a*w2*IG + ICBO*IT/ICDR

which is the desired equation.

Explanation:

Find i for this circuit by pspice
solve in pspice.

Answers

To solve a circuit problem using PSPICE, you would need to:

Draw the circuit diagram and assign component values.

Enter the circuit diagram into PSPICE and run a simulation.

Analyze the simulation results to determine the values of the desired parameters, such as current or voltage.

Once you have run the simulation in PSPICE, you should be able to find the value of I for this circuit by analyzing the simulation results.

For more questions like Voltage click the link below:

https://brainly.com/question/29445057

#SPJ11

a coil of a resistance 30 and inductance 0.08h are connected to supply of 240v, 50hz calculate in impedance​

Answers

The  impedance of a coil of a resistance 30 and inductance 0.08h  connected to supply of 240v, 50hz is about 39.11 ohms.

What does a coil with a 0.5 H inductance carry?

The current flowing through a coil with an inductance of 0.5 H varies consistently from 0 to 10 A in 2s. The coil's generated emf is expressed as (in volts). 10. 5.

R = 30 ohms for resistance

L = 0.08 H for inductance

V = 240V is the supply voltage

F is equal to 50 Hertz.

We can use the following formula to determine the inductive reactance Xl:

Xl = 2πfL

Xl = 25.12 ohms because Xl = 2 3.14 50 0.08

We can now determine the coil's impedance Z:

Z = (R2 + Xl2) Z = (30+25.12) Z = (900+630.54)

Z = √1530.54

Z is roughly 39.11 ohms.

To know more about impedance visit:

https://brainly.com/question/29853108

#SPJ9

A coil having a resistance of 10 ohms and an inductance of 4 H is switched across a 20W dc source. Calculate (a) time required by the current to reach 50% of its final steady value, (b) value of the current after 0. 5 second​

Answers

(a) The time constant of the circuit can be calculated as:

τ = L/R = 4/10 = 0.4 seconds

At t = τln(2), the current will have reached 50% of its final steady value. Therefore:

t = τln(2) = 0.4ln(2) ≈ 0.277 seconds

(b) The current in the circuit can be calculated using the formula:

i(t) = (V/R)(1 - e^(-t/τ))

At t = 0.5 seconds, we have:

i(0.5) = (20/10)(1 - e^(-0.5/0.4))

≈ 1.98 amps

Therefore, the value of the current after 0.5 seconds is approximately 1.98 amps.

List the key features of each house and explain how those features make it hurricane resistant.

Answers

The key features of each house make them hurricane resistant by providing strength and stability against high winds, debris, and flooding. The reinforced concrete walls and roof of a concrete house, the steel frame of a steel house, and the timber frame covered with structural panels of a timber frame house all provide excellent protection during a hurricane.

Here are the key features of each house and how they make them hurricane resistant:

1. Concrete house: The main feature of a concrete house is its reinforced concrete walls and roof. This means that it is designed to withstand high winds, debris, and even floods. The foundation is also made of concrete, which helps prevent the house from shifting or sinking during flooding or high winds. The windows and doors are usually made of impact-resistant glass, which can withstand debris flying at high speeds during a hurricane.

2. Steel house: The key feature of a steel house is its frame. The frame is made of steel, which is incredibly strong and can withstand high winds and debris. The steel frame is bolted to a concrete foundation, which adds even more stability to the house. The walls and roof are usually made of metal panels, which are lightweight but very durable. The windows and doors are also impact-resistant and are usually made of laminated glass.

3. Timber frame house: Timber frame houses are built with a frame made of timber, which is then covered with structural panels made of materials like OSB or plywood. This provides a very sturdy and stable structure. The roof is usually made of metal panels, which are lightweight but very durable. The windows and doors are also impact-resistant and are usually made of laminated glass.

You can learn more about hurricanes at: brainly.com/question/7849706

#SPJ11

once the driver/operator is assured that the preliminary activities are successfully completed and the ground is prepared for stabilization activities, the selector valve may be operated to:

Answers

Once the driver/operator has successfully completed the preliminary activities and ensured that the ground is adequately prepared for stabilization activities, the selector valve can be operated to initiate the next phase of the process. This typically involves the following steps:


1. Divert the flow of hydraulic fluid: The selector valve directs the hydraulic fluid to specific components within the stabilization system, enabling them to function properly.
2. Engage the outriggers or stabilizers: The valve's operation allows the outriggers or stabilizers to be extended and positioned, ensuring a secure and stable foundation for the vehicle or equipment.
3. Control the leveling process: By operating the selector valve, the driver/operator can control the leveling system, which adjusts the vehicle or equipment's position to maintain an even and balanced surface during stabilization activities.
4. Enable weight distribution: The selector valve also plays a crucial role in distributing weight evenly across the stabilizers or outriggers, ensuring optimal stability and safety throughout the operation.
5. Monitor and adjust: Throughout the stabilization process, the driver/operator can use the selector valve to make any necessary adjustments, ensuring that the ground remains stable and secure.

For such more question on driver/operator

https://brainly.com/question/14276851

#SPJ11

technician a says that unwanted resistance in a circuit can cause a fuse or circuit breaker to blow. technician b says that a short-circuit could result in the load never turning off. who is correct?

Answers

Both technicians A and B are correct, but they are describing different scenarios that can lead to a fuse or circuit breaker blowing.


1)Technician A is referring to the presence of unwanted resistance in a circuit. Resistance is a measure of how much a material resists the flow of electric current. In a circuit, resistance can be caused by factors such as corroded wires, loose connections, or damaged components. When unwanted resistance is present in a circuit, it can lead to a buildup of heat, which can cause the fuse or circuit breaker to blow. This is because the fuse or breaker is designed to prevent excessive heat and current from damaging the circuit or causing a fire.

2)Technician B is describing a short-circuit, which occurs when a wire or component in a circuit comes into contact with another wire or component that it should not be touching. When a short-circuit occurs, the resistance in the circuit drops to almost zero, causing a surge of current to flow through the circuit. This surge can cause the load to never turn off, even if the switch or other control mechanism is turned off. In some cases, the surge can also cause the fuse or circuit breaker to blow, as it tries to protect the circuit from the excessive current.

In summary, both technicians are correct, but they are describing different scenarios that can cause a fuse or circuit breaker to blow. Unwanted resistance can cause a buildup of heat, while a short-circuit can cause a surge of current. It's important to identify and address both issues to ensure safe and reliable operation of electrical circuits.

For such more questions on circuit breaker

https://brainly.com/question/14971898

#SPJ11

1 point



Technician A



says



that one benefit of a CVT over an automatic transmission is that it



improves fuel economy.



Technician B



says



that one benefit of a CVT over an automatic



transmission is that it provides a smooth ride since there is no gear shifting hesitation or



jolt. Who is correct?



Technician A



O Technician B



Both Technician A and Technician B



Neither Technician A nor Technician B

Answers

Technicians A and B have correctly identified the benefits of a Continuously Variable Transmission (CVT) over an automatic transmission.

Why is this?

By allowing engines to operate at their most efficient RPM range, a CVT can help improve fuel economy whilst avoiding gear shifting issues or delays that traditional automatic transmissions may face, as mentioned by Technician B which can also provide riders with heightened comfort throughout the journey.

Consequently, both technicians are correct in recognizing various advantages linked with this type of transmission system.

Read more about auto transmission here:

https://brainly.com/question/31076068

#SPJ1

A merz price circulating current system us used to protect a generator having a full load current of 600A, c. T ratio 2000/ and distance between the ct is at opposite ends of the machine is 200 yds. The pilot being 7/0. 029 wire which has a resistance of 5. 4 ohm per 1000yds. Under straight through fault condition of 15 times full load the cts at one end have a voltage of 80% of that of other end. The relay having an impedance of 100 ohm is connected across the physit midpoint of the pilotsdetermine 1) At what distance the physical midpoint will zero voltage be located. 2) At what current the relay will have to be set to give a stability factor of 3. ​

Answers

A Merz Price circulating current system is a protective relay scheme that is commonly used to protect generators. In this particular scenario, the system is being used to protect a generator with a full load current of 600A, and a CT ratio of 2000/1.

The distance between the CTs at opposite ends of the machine is 200 yards, and the pilot wire being used is 7/0.029 wire, which has a resistance of 5.4 ohms per 1000 yards.Under a straight through fault condition of 15 times full load, the CTs at one end have a voltage of 80% of that of the other end. The relay, which has an impedance of 100 ohms, is connected across the physical midpoint of the pilot.To determine the distance at which the physical midpoint will have zero voltage, we need to consider the voltage drop along the length of the pilot wire. Since the pilot wire has a resistance of 5.4 ohms per 1000 yards, the total resistance over a distance of 200 yards is (5.4/1000) x 200 = 1.08 ohms. This resistance will cause a voltage drop of (1.08/200) x 80% = 0.43% at each end of the pilot wire. Therefore, the physical midpoint will have zero voltage when it is located at a distance of 100/(0.43/100) = 23,256 yards from one end of the machine.To determine the current at which the relay needs to be set to give a stability factor of 3, we need to consider the operating characteristics of the relay. The stability factor is a measure of the sensitivity of the relay to changes in the current through the pilot wire. A stability factor of 3 means that the relay will trip when the current through the pilot wire reaches three times its operating current.The operating current through the pilot wire can be calculated using the full load current and the CT ratio. In this case, the operating current is 600/2000 = 0.3A. Therefore, the relay needs to be set to trip at a current of 0.3A x 3 = 0.9A to achieve a stability factor of 3.

For such more question on physical

https://brainly.com/question/24370161

#SPJ11

4: The following frequency distribution shows sample of 50 starting salaries for business in 100 Birr per month. Salaries per month in 100 Birr Number of Employees 32.8 – 34.3 34.4 – 35.9 36.0 – 37.5 37.6 – 39.1 39.2 – 40.7 40.8 – 42.3 42.4 – 43.9 3 8 11 9 9 6 4 Total 50 a) How many employees salary is from 3440 up to 4070 Birr? b) What percent of the employee’s salary is below 3,755 Birr? c) What is the representative salary for the fourth group? d) What is the width of the third class?​

Answers

There are 19 employees whose salary is from 3440 up to 4070 Birr.

It should be noted that 22% of the employees have a salary below 3755 Birr.

How to calculate the value

The salary range from 34.4 – 35.9 and 36.0 – 37.5 Birr per 100 has a total of 8 + 11 = 19 employees. Therefore, there are 19 employees whose salary is from 3440 up to 4070 Birr.

b) We need to add up the frequencies of the first two groups, i.e., 3 + 8 = 11. Then we divide this number by the total number of employees (50) and multiply by 100 to get the percentage:

(11/50) × 100 = 22%

Therefore, 22% of the employees have a salary below 3755 Birr.

Learn more about percentages on

https://brainly.com/question/24877689

#SPJ1

Example 1


Assume that any distance of 100 ft can be taped with an error of


+-0. 02ft, if certain techniques are employed. Determine the error


in taping 5000 ft using these skills.


Example 2


A distance of 1000 ft is to be taped with an error of not more


than +-0. 1 0ft. Determine how accurately each 100 ft length must


be observed to ensure that the error will not exceed the


permissible limit

Answers

Example 1 provides the error calculation for taping 5000 ft with a 100 ft distance tolerance of ±0.02ft, while example 2 determines the accuracy needed for each 100 ft length to ensure not exceeding a ±0.10 ft error for a 1000 ft distance

What are the examples given for error calculation in tape measurements?

Example 1: If any distance of 100 ft can be taped with an error of +-0.02ft, the error in taping 5000 ft using these skills would be 0.02ft x 50, which is equal to 1ft. Therefore, the error in taping 5000 ft using these skills would be 1ft.

Example 2: To ensure that the error in taping a distance of 1000 ft with a permissible limit of +-0.10ft does not exceed the limit, each 100 ft length must be observed with an accuracy of not more than +-0.01ft.

This is because the total error is equal to the sum of the errors in each 100 ft length, and if each 100 ft length is observed with an accuracy of not more than +-0.01ft, then the total error will not exceed the permissible limit of +-0.10ft.

Learn more about tape

brainly.com/question/31787096

#SPJ11

In order to calculate the line voltage of a wye-connected three-phase system you must multiply 1. 73 by the ________________

Answers

In order to calculate the line voltage of a wye-connected three-phase system, you must multiply 1.73 by the phase voltage.

What is Phase Voltage?

In a three-phase power system, phase voltage is the voltage measured between any one phase and the neutral point. The neutral point in a wye-connected system is the point at which the three phases are joined together. There is no neutral point in a delta-connected system.

In a wye-connected system, the line voltage is calculated as follows:

3 x Phase Voltage = Line Voltage

Where "3" is the square root of three, which is roughly 1.73.

Therefor, to calculate the line voltage, multiply the phase voltage by 1.73, or the square root of 3.

Learn more about  Phase Voltage here: https://brainly.com/question/29445057

#SPJ1

can you use transmission fluid for power steering fluid

Answers

Yes, it is possible to use transmission fluid as a temporary substitute for power steering fluid in some cases. Both fluids are hydraulic fluids designed to provide lubrication and transmit power in various vehicle systems. However, it is essential to note that they are not the same, and their specific formulations differ.

Power steering fluid is formulated to withstand high temperatures and pressures, whereas transmission fluid is designed to provide lubrication and cooling for the transmission system. While they may share some properties, using transmission fluid in your power steering system could lead to reduced performance and potential damage over time, as it may not meet the exact specifications required by your vehicle's manufacturer.

It is always recommended to use the appropriate fluid specified by your vehicle's owner manual to avoid any issues. In an emergency, if a power steering fluid is unavailable, using transmission fluid as a temporary solution may be considered, but it is crucial to replace it with the proper power steering fluid as soon as possible to ensure the optimal performance and longevity of your power steering system.

You can learn more about steering fluid at: brainly.com/question/11627102

#SPJ11

Develop a game, where user enters a small sentence 4-5 words long. user should think of a word in that sentence and your application should ask the starting letter and character length and display the word by searching it in the sentence.

make use of concepts of string class methods and enhanced for loop to perform this task.

Answers

A game can be developed using the string class methods and enhanced for loop, where the user enters a sentence, thinks of a word in that sentence, and the application asks for the starting letter and character length to display the word.

The application can use the 'split()' method to split the sentence into an array of words, and then use the enhanced for loop to search for the user's word by checking if it starts with the specified letter and has the specified length.

Once the word is found, the application can display it to the user.

Overall, this game can be a fun way for users to test their memory and string manipulation skills, while also showcasing the power of string class methods and enhanced loops in Java programming.

For more questions like Java click the link below:

https://brainly.com/question/29897053

#SPJ11

Water is the working fluid in a Rankine cycle. Steam enters the turbine at 1400 lbf/in. 2 and 1000°F. The condenser pressure is 2 lbf/in. 2 Both the turbine and pump have isentropic efficiencies of 85%. The working fluid has negligible pressure drop in passing through the steam generator. The net power output of the cycle is 1 × 109 Btu/h. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Determine for the cycle (a) the mass flow rate of steam, in lb/h. (b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator. (c) the thermal efficiency. (d) the mass flow rate of cooling water, in lb/h

Answers

The mass flow rate of steam and cooling water is 8963 lb/h and 6.25x10^7 lb/h respectively whereas the rate of heat transfer is 1.307x10^7 Btu/h and thermal efficiency is 76.56%.

(a) To determine the mass flow rate of steam, we need to use the equation for mass flow rate:

mass flow rate = net power output / ((h1 - h2) * isentropic efficiency)

where h1 is the enthalpy of the steam entering the turbine and h2 is the enthalpy of the steam leaving the turbine and entering the condenser.

Using a steam table, we can find that h1 = 1474.9 Btu/lb and h2 = 290.3 Btu/lb. Plugging in the values and converting Btu/h to lb/h, we get:

mass flow rate = (1x10^9 Btu/h) / ((1474.9 - 290.3) * 0.85) = 8963 lb/h

Therefore, the mass flow rate of steam is 8963 lb/h.

(b) The rate of heat transfer to the working fluid passing through the steam generator can be calculated using the equation:

Q = mass flow rate * (h1 - h4)

where h4 is the enthalpy of the fluid leaving the condenser. Using a steam table, we can find that h4 = 46.39 Btu/lb. Plugging in the values, we get:

Q = (8963 lb/h) * (1474.9 - 46.39) = 1.307x10^7 Btu/h

Therefore, the rate of heat transfer to the working fluid passing through the steam generator is 1.307x10^7 Btu/h.

(c) The thermal efficiency of the cycle is given by:

thermal efficiency = net power output / heat input

where heat input is the rate of heat transfer to the working fluid passing through the steam generator. Plugging in the values, we get:

thermal efficiency = (1x10^9 Btu/h) / (1.307x10^7 Btu/h) = 76.56%

Therefore, the thermal efficiency of the cycle is 76.56%.

(d) To determine the mass flow rate of cooling water, we can use the equation:

rate of heat transfer to cooling water = mass flow rate of cooling water * specific heat of water * (T2 - T1)

where T1 and T2 are the inlet and outlet temperatures of the cooling water. Plugging in the values, we get:

1x10^9 Btu/h = mass flow rate of cooling water * 1 Btu/lb°F * (76°F - 60°F)

mass flow rate of cooling water = (1x10^9 Btu/h) / (16 Btu/lb°F) = 6.25x10^7 lb/h

Therefore, the mass flow rate of cooling water is 6.25x10^7 lb/h.

Learn more about Fluid mechanics at:

https://brainly.com/question/17123802

#SPJ11

Which of the following identifies the first step in a life cycle analysis?
Orisk status
O improvement analysis
O impact analysis
O inherency analysis

Answers

Life Cycle Analysis is a orderly approach to evaluating the incidental impact of a product or process during the whole of its whole life cycle.  The first step in a life cycle analysis is option B: Impact Analysis.

What is the life cycle analysis?

The process usually involves four main steps, containing impact analysis, bettering analysis, risk amount, and communication. Impact Analysis is the beginning in the process and involves recognizing and assessing the environmental impacts guide each stage of a product or process's biological clock, from raw material distillation and manufacturing to use, support, and disposal.

This step helps to recognize which stages of the biological clock have the greatest tangible impact and which tangible factors are most touched.

Learn more about life cycle analysis from

https://brainly.com/question/30039216

#SPJ1

Water flows out of a reservoir, through a penstock, and then through a turbine. The mean velocity is 5. 3 m/s. The friction factor is 0. 2. The total penstock length is 30 m and the diameter is 0. 3 m. There are three minor loss coefficients: 0. 5 for the penstock entrance, 0. 5 for the bends in the penstock, and 1. 0 for the exit. Calculate the total head loss in units of meters

Answers

The total head loss in the penstock is 22.99 meters.

To calculate the total head loss in the penstock, we need to consider both major losses (due to friction) and minor losses (entrance, bends, and exit). We can use the Darcy-Weisbach equation for major losses and the minor loss equation for minor losses.

Major losses: hL_major = f * (L/D) * (V^2/2g)
Minor losses: hL_minor = K * (V^2/2g)

- Mean velocity (V) = 5.3 m/s
- Friction factor (f) = 0.2
- Penstock length (L) = 30 m
- Diameter (D) = 0.3 m
- Minor loss coefficients: entrance (K1) = 0.5, bends (K2) = 0.5, exit (K3) = 1.0
- Gravitational acceleration (g) = 9.81 m/s²

First, calculate major losses:
hL_major = 0.2 * (30/0.3) * (5.3^2/2*9.81) = 15.79 m

Next, calculate minor losses:
hL_minor = (0.5 + 0.5 + 1.0) * (5.3^2/2*9.81) = 7.20 m

Finally, add major and minor losses to find the total head loss:
hL_total = hL_major + hL_minor = 15.79 m + 7.20 m = 22.99 m

The total head loss in the penstock is 22.99 meters.

To know more about Friction visit:

https://brainly.com/question/14365923

#SPJ11

The leakage from the artificially constructed tempe town lake in tempe, az, can be as low as 0.5 ft/day or as high as 3 ft/day. the lake covers 222 surface acres. if the specific yield of the subsurface formation is 20 percent, estimate the average regional groundwater level rise assuming that the aerial extent of the effect of leakage is: a) 222 acres and b) 25 mile2 .

Answers

The estimated average regional groundwater level rise due to leakage from Tempe Town Lake would be:

a) 0.015 to 0.09 feet/day for an aerial extent of 222 acres

b) 0.00026 to 0.00158 feet/day for an aerial extent of 25 square miles

To calculate the average regional groundwater level rise, we can use Darcy's law, which states that the rate of groundwater flow is proportional to the hydraulic gradient and the hydraulic conductivity of the subsurface formation.

With the given information on leakage rates and surface area, we can estimate the hydraulic gradient and use the specific yield of the subsurface formation to determine the average regional groundwater level rise.

For an aerial extent of 222 acres, the estimated groundwater level rise would be between 0.015 and 0.09 feet per day. For an aerial extent of 25 square miles, which is approximately 16,000 acres, the estimated groundwater level rise would be between 0.00026 and 0.00158 feet per day.

Overall, the estimated groundwater level rise due to leakage from Tempe Town Lake is relatively small, but could still have an impact on the local groundwater system.

For more questions like Rate click the link below:

https://brainly.com/question/14731228

#SPJ11

Other Questions
Question 3/4In this letter, Simn Bolvar's goal is toA. become monarch of the strongest country in South AmericaB. break off diplomatic relations with EuropeC. form one nation that unifies all of South AmericaD. convince Mexico to join in his fight against Spain Some cultures prefer to not hear negative health information. A doctor who is interacting with a person from one of thesecultures-should be respectful and mindful that some people don't want to hear negative test results.-should tell the results of the medical exam regardless of the negative outcomes.-should tell a family member of the same culture.-should explain to the patient that death is a part of life. What is the oxidized form of the most common electron carrier that is needed for both glycolysis and the citric acid cycle Read this paragraph from "Shipped Out." Underline at leasttwo adverbs, and circle the verb that each adverb describes.Then rewrite one sentence so that an adverb modifies anotheradverb. Underline this new adverb. What is the volume of a can with a diameter of 4 inches and a height of 9 inchesand what is the surface area of a can with a diameter of 4 inches and height of 9 inchesand ratio of surface area to volume Readingproportional relationships - part 1do the values in the table represent a proportional relationship?012.3y0356select from the drop-down menu to correctly complete the statement.all of the y-values choose...a constant multiple of the corresponding x-values, so the relationship choose...12345678910next The gleaners by jean-francois millet. Three poor women search a field for food after a harvest. What type of atmosphere is depicted in the image above, and how did the artist achieve this? Research and briefly summarize the following savings options. In your summary, make sure you mention the level of risk associated with each option and recent returns on investment. Savings account Certificates of deposit Stocks Bonds Mutual funds Employer sponsored savings plan Physical assets Commodities Write a diary about the blue factory it has to be 500-600 words A runner takes 4. 92 seconds to complete a sprint. If they run the sprint 19 times, how many total seconds would it take? Find the open intervals where the function is concave upward or concave downward. Find any inflection points. f(x) = 11x - 11 e - Where is the function concave upward and where is it concave downward? can someone help me on this , and sure not if there correct Choose the correct statement that best distinguishes between astrology and astronomy. AAstrology is the study of stars only. Astronomy is the study of planets only.BAstrology is the study of the Moon only. Astronomy is the study of stars and planets only.CAstrology is the study of influence of cosmic objects on human lives. Astronomy studies celestial objects and related phenomena.DAstrology is the study of planets only. Astronomy is the study of stars only. Taub went shopping for a new phone. To find the total plus tax, she multiplied the price of the phone by 1.055. What percent tax did she pay? Teleconferencing allows workers from around the world to the czech republic has a gdp of 2,000 billion koruny. the exchange rate is 20 koruny per u.s. dollar. the czech population is 20 million. calculate the per person gdp of the czech republic in u.s. dollars. 1. A ___ can help to indicate an "endless loop," or a continual process without progression. A. scatter diagram B. range control chart C. flow chart D. normal distribution curve2. Which is not an achievable goal of process improvement?A. Identifying sources of variationB. Eliminating common causes of variationC. Eliminating assignable causes of variation D. Measuring the amount of variation 1.a capital investment is expected to achieve long-term benefits for the organization thatgenerally fall into three categories: financial benefits, nonfinancial returns and the ability toattract more funds in the future.true or false? the area of a rectangular sticker is 105 square centimeters. the perimeter is 44 centimeters. what are the dimensions of the sticker? How does Mr. Peters change throughout the story? What evidence does the author include?