What two families of plastic are there?
thermoplastic plastics (recyclable)
thermosetting plastics (non-recyclable)
What is the maximum pressure of high pressure boiler?
The highest pressure boiler that I ever saw as a marine Chief Engineer was 2400 psi or 80 atmospheres. The US Navy operated 1200 psi boilers for many years. High pressure steam generators in Nuclear plants are usually limited to 600 psi due to the lack of superheating. There are higher pressure boilers for specific applications but these are few and far between. Any boiler over 2400psi carries with it many safety concerns and is problematic to both build and maintain.
"Batch processing" refers to the execution of multiple commands on a computer. Batch jobs are often used to automate a process which needs to be done on many files, since they do not typically need user input once started.
A blast furnace typically stands between 70 to 100 feet tall, with some reaching heights of up to 150 feet. The height of a blast furnace is crucial for its efficiency in producing iron, as it allows for the proper distribution of materials and gases throughout the furnace. The tall structure also helps create the necessary conditions for the chemical reactions that take place within the furnace to produce molten iron.
Groynes are placed so as to reduce coastal (or riverside) erosion.
In the coastal case, they interrupt the flow of sediment along the coast, and accumulate it alongside the groyne. They are only temporary, though with a life of decades.
Riverside groynes rely upon their mass to prevent current erosion of the riverbank. They will not usually accumulate sediments in any great quantity.
Read more: How_do_groynes_work
Is nylon thread stronger than a steel wire of the same thickness?
More information is needed really as the answer depends hugely on the application.
For example, yes you could tow a friends broken down car with a steel cable of equal strength to the nylon tow rope.
....but not, you could not replace a nylon rope used to moor a boat with (untreated) steel cable as it wuold rust.
Nylon rope also has some "give" in it, allowing it to absorb some shock as tension is taken, it is also an excellent insulator. Steel has almost no give at all and is a fairly good conductor (though not brilliant when efficient conduction is required).
So it depends massively on your application - all answers from "absolutely not" to "it would be even better" can appy.
Mark
What is the difference between steel rod and steel bar?
Rod is circular in shape. If u look it from where it starts, i.e. its cross sectional view it will be circular. It may or may not be hollow.
Bar's cross sectional view will be a quadrilateral.
Shivangini
What is approach of a cooling tower?
Cooling towers are a very important part of many chemical plants. The primary task of a cooling tower is to reject heat into the atmosphere. They represent a relatively inexpensive and dependable means of removing low-grade heat fromcooling water. The make-up water source is used to replenish water lost to evaporation. Hot water fromheat exchangers is sent to the cooling tower. The water exits the cooling tower and is sent back to the exchangers or to other units for further cooling.
Cooled water is needed for, for example, air conditioners, manufacturing processes or power generation. A cooling tower is an equipment usedto reduce the temperature of a water stream by extracting heat from water and emitting it tothe atmosphere. Cooling towers make use of evaporation whereby some of the water is evaporated into a moving air stream and subsequently discharged into the atmosphere. As a result, the remainder of the water is cooled down significantly (Figure 1). Cooling towers are able to lower the water temperatures more than devices that use only air to reject heat, like the radiator in a car, and are therefore more cost-effective and energy efficient.
What were the effects of the Yangtze dam in China?
cancer, death, deformed newborns. so many toxins go into that water, the poor villagers that live along the river in remote areas are dropping like flies. kids left without parents, some elders outliving their children. even deformation of people alive and living there. there's a special they did on the "local" channel that i watched a long time ago where they interviewed this one guy who lived in a village. if i find it i will post it for u.
Disadvantages of pneumatic system?
Pneumatic and hydraulic controls are extensively used in production plants for natural gas. Safety is the reason.
However in earlier times (my only experience) they were subject to zero-point drift.
This may have changed with the application of binary logic to these control systems. Other disadvantages are limited speed, and the lack of industrial support for this branch of logic computation.
In order to keep the site free from electricity, the prime mover motors were steam powered from locally generated steam.
Where does the term spic come from?
The term "spic" is a derogatory racial slur used against people of Hispanic or Latino descent. It is an offensive term and should not be used.
The origin of the term is unclear, but it is believed to have originated in the United States in the early 20th century, during a period of increased migration from Latin America. The word is likely derived from "Hispanic," with the "H" replaced by the letter "S" to create a derogatory sound.
It is important to note that the term is considered highly offensive and is not an acceptable way to refer to people of Hispanic or Latino descent. It is important to use respectful language when referring to people of different races and ethnicities.
How much does a foot of 42 inch pipe weigh?
42 42.000 STD .375 166.7141.250 42 42.000 XHY .500221.61 41.000 Weights are 166.71 per ft. and 221.61.
What is the raw material that is added to a system for processing known as?
The raw material that is added to a system for processing is commonly referred to as the "input" or "input material." In various processes and systems, raw materials are introduced into the system to undergo processing, transformation, or conversion into the desired output or end product.
In the context of manufacturing, production, or any industrial process, the input material is the starting point of the operation. It serves as the basis for the production process, and its quality and characteristics directly impact the quality of the final product.
For example:
In a manufacturing plant, the raw materials like metal, plastic, or fabric are the inputs used to create finished products like automobiles, electronics, or clothing.
In a food processing industry, the raw materials are the ingredients used to make food products, such as fruits and vegetables for juices, grains for cereals, or meat for processed meats.
The term "input" emphasizes the fact that these raw materials are fed into the system, undergo various processes or transformations, and eventually lead to the production of the desired output or finished product.
The number x is equal to another number n plus the square root of 3?
The equation you provided can be written as:
x = n + √3
This equation states that the value of "x" is equal to another number "n" plus the square root of 3 (√3). The variable "n" represents a constant number, while "x" can take any value depending on the value of "n."
For example, if n = 2, then:
x = 2 + √3 ≈ 3.732
If n = 5, then:
x = 5 + √3 ≈ 6.732
The equation represents a relationship between "x" and "n," where "n" acts as an offset or a starting point, and "x" is the result of adding the square root of 3 to "n."
What are the conditions that favor the formation of built-up edge?
One of the conditions that favor the formation of a built-up edge is low cutting speed. The metal being cut should also work-harden and should be reluctant to recover such as alloys like steel.
When was steam roller invented?
At the beginning of the 19th century, the steam roller was created. It is thought to have been invented in 1800. This cutting-edge machine was designed to compact and flatten roads, pavements, and construction sites effectively. The speed and efficiency of road compaction significantly increased when the steam roller replaced earlier manual methods. Steam rollers have evolved in design and functionality over time, but when they were first invented, they were a significant step forward in road construction technology.
What is an example of compressive strength?
Concrete's capacity to withstand compressive forces is an illustration of compressive strength. A concrete structure, like a column or a beam, experiences pressure when it is subjected to a load. Concrete's capacity to withstand this pressure without breaking or deforming is measured by its compressive strength. For instance, structural concrete must have a compressive strength of at least 25 megapascals (MPa), which indicates that it can withstand significant compression without breaking. In determining the structural integrity and durability of various building materials, compressive strength is a crucial factor.
Can you solder cold rolled steel?
I have found through experience that hot rolled steel will take 95/5%
solder, and that cold rolled will not solder, reason is the cold rolled steel molecules are arranged differently that the hot roll, they are so to speak pushed into the final dimension with extreme pressure this also causes
a so called hardened tempered surface on the cold roll steel that has to be annealed so that it can be drilled. cut or soldered.
What are the properties of polyethylene?
Polyethylene is a flexible polymer with a few remarkable properties. First and foremost, it is chemically resistant to a wide range of acids, alkalis, and solvents. Second, polyethylene is a good material for applications where less friction is desired because it has a low coefficient of friction. Thirdly, it has high electrical protection properties, making it broadly utilized in electrical and electronic applications. Additionally, polyethylene is suitable for a wide range of applications in the construction, automotive, consumer goods, packaging, and construction industries due to its low weight, long lifespan, and high impact strength. Finally, it is generally non-toxic and resistant to moisture, making it suitable for use in medical and food packaging.
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Does Faraday's law depend on the number of times the coil turns?
2 out of 2 points
Faraday\'s law does not depend on the number of times the coil turns.
Answer Selected Answer: False
Metal is used for almost everything from cooking, transportation, medical equipment, weapons, parts of hardwares, structures in houses/buildings, industrial equipment, and more.
Is Aniline formaldehyde resin thermoplastic or thermosetting?
"it is a thermosetting plastic because its formation is by Step reaction Polymerization(Condensation) which is a thermoplastic."
that is a uniquely idiotic answer.
there are plenty of instances when a condensation reaction leads to a thermosetting polymer: phenol formaldehyde resins are just one instance.
the key is the effective functionality of what is condensing. in unsubstituted (on the ring) aniline, the effective functionality is 3: both ortho positions and the para positions are open to the formaldehyde reaction. and that, my friends, leads to a crosslinked or thermoset polymer.
if your aniline is blocked in one of those positions, say, as in p-anisidine, then, yes, you will largely get a thermoplastic (save for the defects, etc.)