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The material used for fuse has low melting point

When the current in the circuit passes through the fuse, its temperature increases. When the current exceeds the specified value, the fuse must melt to break the circuit. For this, the material used for a fuse has low melting point (1) The melting point of the material used for fuses is low because if the current exceeds the limiting value then the temperature of wire increases and the fuse wire melts and breaks down at that very moment. So, the current stops. This prevents damaging the costly electrical appliances connected through the circuit

Explanation: The material used for a fuse wire must have a low melting point so that it melts as soon as excessive current passes through it and thus it can prevent the appliance from damage. AS per your promise mark me as brainliest plss New questions in Physic Fuse wires must have low melting point. Fuse wires are used for protection. Whenever there is increased in load in system than the prescribed limit or when there is any fault in the circuit the value of current increases. The fuse wires are designed as per rated value of current wherever it is used The material used for fuse must have. A. low melting point and high specific resistance. B. low melting point and -low specific resistance. C. high melting point and low specific resistance. D. low melting point and any specific resistance. Answer: Option B

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  1. Question is ⇒ The material used for fuse must have, Options are ⇒ (A) low melting point and high specific resistance, (B) low melting point and low specific resistance, (C) high melting point and low specific resistance, (D) low melting point and any specific resistance, (E) , Leave your comments or Download question paper
  2. The temperature around the fuse wire rapidly rises, when it reaches the melting point of the material it burns and protects the circuits. High resistance and low melting point are responsible to the quick response of the fuse wire towards the current. The common material used as fuse wire is an alloy of tin and lead. Answer verified by Topp
  3. The material used for electric fuse is an alloy of tin and lead. This alloy should have: A) high specific resistance and low melting point: B) low specific resistance and high melting point: C) low specific resistance and low melting point: D) high specific resistance and high melting point
  4. Under normal conditions, the fuse wire is a part of the circuitry, contributing to a complete loop for charges to flow through it. However, when an excessive amount of current flows through the fuse wire, the heating effect of current causes the fuse wire to melt. This is because the fuse wire is chosen such that it has a low melting point
  5. um, and an alloy of lead and tin

The material used for fuse must have (a) low melting point and high specific resistance (b) low melting point and -low specific resistance (c) high melting point and low specific resistance (d) low melting point and any specific resistance Ans: a. 87. If the fault occurs near the impedance relay, the VII ratio will b The material used for making fuse have low melting points, hence fuse wires are mainly made up of tin, lead or zinc. How does a Fuse Wire work? A fuse is used in a circuit to avoid overloading or short circuiting. When a current higher than the rating of the fuse flows through it, the fuse wire gets heated and melts

Fuse wire is usually made with metal that has a low melting point, e.g. tin, to lessen the risk of fire. Fuse is made of a material having low melting point? Plz specify the question.. The material used for fuse must have_____________? A. low melting point and high specific resistance. B. low melting point and -low specific resistance. C. high melting point and low specific resistance. D. low melting point and any specific resistance. Mcq Added by: admin A fuse wire should be highly resistant and have a low melting point, toprevent the current from passing higher than the specified value. Whenhigh current passes through it due to the heat produced, the low melting point will make it split

Metals with a low melting point can be valuable for many reasons: they are cheap to process (since a large expense in processing is usually heat), they can be used to melt and join objects together (solders), they can be used as a temperature safety valve (if the fuse gets to hot and melts, it will shut down the machine), they usually have high. Fuse wire must select in such a way that it burns and break the circuit when large current passes. For this purpose the material used as fuse wire should have high resistance and low melting point. So a fuse wire has High or More resistance and Low or Less melting point. I hope this answer will help you

Safety fuse wire used in domestic electrical appliances is made of metal of low (1) Resistance (2) Melting point (3) Specific gravity (4) Conductance Description : Safety fuse wire used in domestic electrical appliances is made of metal of low (1) Resistance (2) Melting point (3) Specific gravity (4) Conductanc low melting point; low ohmic loss; high conductivity; free from deterioration due to oxidation; should be low cost; Metal, tin, copper, silver, etc., are generally used as fuse element which have the above properties. For small currents up to 10A, tin or an alloy of lead (37%) and tin (63%) is used as fuse element The material used for making fuse element has a low melting point such as tin, lead, or zinc. A low melting point is, however, available with a high specific resistance metal shown in the table below. The material mainly used for fuse element are tin, lead, silver, copper, zinc, aluminum Fuses - MCQs with answers Q1. Which among these are the main characteristics of a fuse element? a. Low melting point b. High conductivity c. Least deterioration due to oxidation d. All of the above View Answer / Hide Answe

(1) The material used for fuse has low melting point

  1. The material used for fuse must have_____________? - A.low melting point and high specific resistance B.low melting point and -low specific resistance C.high melting point and low specific resistance D.low melting point and any specific resistance Submitted by:Ali Uppa
  2. 2. Fuse wire should possess. a) High specific resistance and high melting point. b) High specific resistance and low melting point. c) Low specific resistance and low melting point. d) Low specific resistance and high melting point. Ans: (d) 3. If strands are twisted, then fusing current will
  3. The fuse is made of a thin material that has a low melting point. The body of the fuse is made of ceramic material. A live wire is connected through the element of fuse for the continuous power supply. In the failure cases, the element of the fuse will melt leading to the break of power supply
  4. The material used for fuse must have_____? 0. A. low melting point and high specific resistance B. low melting point and -low specific resistance C. high melting point and low specific resistance D. low melting point and any specific resistance.

If the current is too high the fuse melts, opening the circuit and halting additional current flow. The current at which the fuse opens is controlled by the composition of the wire. Low current = low melting point. In no case would the melting point of the fuse be higher than that of normal wire: That would defeat the purpose of the fuse This construction design utilizes low-meltingpoint metals plated or deposited on the main element material to cause an M effect. If the fuse is sized improperly, low-level pulse currents may cause the low-melting-point metals to alloy to the element without completely opening the element

The material used for fuse has low melting point

  1. A fusible alloy is a metal alloy capable of being easily fused, i.e. easily meltable, at relatively low temperatures.Fusible alloys are commonly, but not necessarily, eutectic alloys. Sometimes the term fusible alloy is used to describe alloys with a melting point below 183 °C (361 °F; 456 K). Fusible alloys in this sense are used for solde
  2. The material used for fuse must have B a Low melting point and low specific from EE 770 at U.E.T Taxil
  3. Alloys with melting points below 450 degrees Fahrenheit are referred to as low-melting or fusible alloys. The most widely used fusible alloys contain high percentages of bismuth, combined with lead, tin, cadmium, indium and other metals. Bismuth has an impact on the melting point, as well as the growth and shrinkage characteristics of the alloys
  4. the material used for the fuse must have. A. low melting point and high specific resistance B. low melting point and low specific resistance C. high melting point and low specific resistance D. low melting point and any specific resistance. Pveera. •
  5. . A. low melting point and high specific resistance. B. low melting point and -low specific resistance. C. high melting point and low specific resistance. D. low melting point and any specific resistance

A. low melting point and high specific resistance B. low melting point and low specific resistance C. high melting point and low specific resistance D. low melting point and any specific resistance. Pveera Vee needs an answer for the material used for the fuse must have. Go to Youth4work.com to reply his query High Resistivity Conducting Materials: High resistivity materials are the materials used in such applications where a high value of resistance is required. These materials have properties like the low-temperature coefficient of resistance, high melting point, and no tendency for oxidation. They must be ductile and should have high mechanical. The material used for fuse must have. a) Low melting point and low specific resistance b) Low melting point and high specific resistance c) High melting point and low specific resistance d) Low melting point with any specific resistance Ans: (b) 80. The Buchholz relay is used to protect th

Give scientific reason, The material used for fuse has low

  1. An electric fuse is a safety device, which is used to limit the current in an electric circuit. The use of fuse safeguards the circuit and appliances connected in that circuit from being damaged. An alloy of lead and tin is used as a material of fuse because it has low melting point and high resistivity
  2. um 670 2.85 Silver 960 1.64 copper 1090 1.72 Experience shows that, materials of low melting point like tin, lead and zinc are most suitable for fuse element
  3. Fuses work on the principle of heating effect of current. It consists of a piece of wire called fuse wire made of a metal or an alloy of low melting point. As the current increases beyond a limit, the wire in the electric fuse melts and breaks off. The fuse is then said to have blown off. Let's assume a real-life example
  4. The material for the fuse wire should have low resistance and a low melting point. Ductility is a incidental factor. As the current flow nears the fuse rating, the high current flow causes the.
  5. um, and alloys of lead and tin. An alloy of lead and tin (lead 37% and tin 63%) is.
  6. um is 1,220 degrees Fahrenheit. Carbon steel melts somewhere between 2,600 and 2,800 degrees Fahrenheit, and the temperature needs to rise all the way up to 6,150 degrees Fahrenheit to melt tungsten
  7. ⇒ The material used for fuse must have low melting point and high specific resistance low melting point and low specific resistance high melting point and low specific resistance low melting point and any specific resistance. Users Also Read. Previous Papers. Aptitude. Reasoning

As the Fuse is not just an electrical contact, it should connect the circuit; at the same time, it can melt when the current exceeds the limit. That is why conductors with a low melting point are used as a fuse. To burn out itself a fuse wire should generate a sufficient amount of heat to raise the temperature of the material to its melting point C. at critical point D. under the conditions of high temperature and pressure. Answer A. Marks 1. 29. Now a days, Copper is not used in ----A. Brushes for electrical machines B. Fuses C. Transformer winding D. Busbars. Answer A. Marks 1. 30. Pure metal generally have ----A. high conductivity and low temperature coefficien

Fuse is the cheapest protection device in electrical circuit against short circuits and overloading of circuits. Fuse is a metal wire or thin metal strip which has the property of low melting point which is inserted into the electrical circuit as protective device A time delay fuse, on the contrary, can handle 100 or 200% more electrical current than a regular type because it has an extra spring-attached short connector. The connector is attached to the fuse wire with a low melting point solder. The fuse lets electrical surges pass through as long as they remain below the breaking capacity Because tungsten has a high melting point it is used in blubs. It cannot be used in fuse wires because in fuse wires the material must have a low melting point. Question 4. Name any two devices, which are working on the heating effect of the electric current. Answer: (i) Electric heater (ii) Fuse wire. VII. Short Answer Questions. Question 1 What is claimed is: 1. A fuse with a low-melting point metal, comprising: a pair of box-type terminals; and . a fusing portion comprised of a high-melting point fusible metal element for coupling said pair of box-type terminals in a form of a link, and a low-melting point fusible metal element disposed at a substantially center portion of said high-melting point fusible metal element and.

LOW VOLTAGE FUSES: a) SEMI ENCLOSED REWIREABLE TYPE: It is also known as kit-kat type. It is used where low value of fault current are to be interrupted. It has two parts : 1) a base. 2) a fuse carrier. both base and fuse carrier are made up of porcelain, base is fixed while fuse carrier ( which carries the fuse element) is moving, fuse carrier. Which is not the characteristic of a fuse wire? (a) It has high resistance (b) It has low melting (d) It is an alloy of lead and tin It has low melting point (c) It has low resistance (d) It is an alloy of lead and tin State the characteristics required in a material to be used as an effective fuse wire. asked Feb 15, 2019 in. A fuse consists of two conducting elements such as short wire and thin metallic strips. These elements are made by a metal conductor like copper, silver, aluminum, zinc. Generally, a low melting point and high conductivity material are mostly used in the fuse. It plays both protector and safety device roles for protection of the power system It is made of material having low melting point. What is the function of fuse? The main purpose of fuse in an electric circuit is to give protection against short circuit and overload. fuses can be used as an alternative to circuit breakers. fuse in a electric circuit mainly perform following two functions: 1

Generally, copper or silver is used as the fuse element because of its low specific resistance. This element has normally two or more sections. The fuse element normally has two or more sections that are connected through tin joints. The melting point of tin is 2400 C that is lesser than silver's melting point of 980o C Q1) True or False. A fuse wire has a high melting point. Flow of protons constitutes electric current. Silver is an insulator of electricity. S.I. unit and commercial unit of electrical energy are the same

Generally, the fuse element is made of copper material which is burn when high current passes through it. The construction of fuse consists three main parts such as Base, Element and Link. Fuse have multiple benefits and characteristics. There are multiple types of fuses but the best fuse is HRC. Introduction to Fuse; Fuse Constructio AC-TIG welding is not typically used with steel parts. 3. Cast Iron. Cast iron is, as expected, a type of iron. Often, the term cast refers to materials that have been shaped for a particular purpose. As a material, cast iron has a relatively low melting point, which makes it a great candidate for welding This construction design utilizes low-melting point metals plated or deposited on the main element material to cause an M effect. If the fuse is sized improperly, low-level pulse currents may cause the low-melting-point metals to the alloy to the element without completely opening the element Copper or silver is usually used in fuse due to their low resistance. A fuse element usually has two or more sections that are connected with the help of a tin. The melting point of tin is 2400° C which is less than the melting point of silver like 980° C thus melting point of tin joints prevents fuse from getting high temperatures in case of.

Power System Protection FUSES. 2. Introduction • Fuse was patented by Thomas Edison in 1890 • Fuse is the simplest & cheapest device used for interrupting an electrical circuit under short circuit or excessive. • The fuse element is generally made of materials having- low melting point, high conductivity and least deterioration due to. 1. Low Voltage Fuses (LV) Cartridge Type Fuses: It is the type of fuses in which they have totally closed containers & has the contact i.e., metal besides. Cartridge Type Fuses are of two types:-D-Type Cartridge Fuses:-It is composed of the cartridge, fuse base, cap & adapter ring. The fuse base has the fuse cap, which is fitted with the fuse. High melting point. Question 5. Which among the following is the special characteristics of a material to be used as a heating coil in a electric heating device? a. Low melting point b. High resistivity c. Large area of cross section d. Low resistance Answer: High resistivity. Question 6. Which material is used as filament of bulb? Answer. FUSE ELEMENT MATERIALS The materials used for fuse elements must be of low melting point , low ohmic loss ,high conductivity , low cost & free from deterioration. METAL MELTING POINT IN °C SPECIFIC RESISTANE IN µΩ-mm VALUE OF FUSE CONSTANT K FOR d in m SILVER 980 16 - TIN 240 112 12.8 ZINC 419 60 - LEAD 328 210 10.8 COPPER 1090 17 80. The device used in these days in place of electric fuse is MCB (Miniature Circuit Breaker). Question 3. State the property of a conducting wire is utilised in making electric fuse. INCERT Exemplar] Answer: Electric fuse wire is made up of special material which has low melting point

i give two characteristic properties of copper wire which make it unsuitable for use as fuse wire ii name the material which is used as a fuse wire - Physics - TopperLearning.com | n2pu424bb Starting early can help you score better Low-voltage high rupture capacity (HRC) fuses are used in the area of main distribution boards in low-voltage networks where there is a high prospective short circuit current. They are generally larger than screw-type fuses, and have ferrule cap or blade contacts. High rupture capacity fuses may be rated to interrupt current of 120 kA

The material of the wire have low melting point and high resistance. The material used for making fuse wire is an alloy of copper and tin or pure tin. 64. Explain the working of an electric fuse? The working is based on the heating effect of current. A fuse wire has low melting point and high resistance. The fuse is connected in series with the. Fuse protection is used for current ratings up to (a) 10 A (b) 20 A (c) 50 A (d) 100 A. 21. A fuse wire should have (a) low specific resistance and high melting point (b) low specific resistance and low melting point (c) high specific resistance and high melting point (d) high specific resistance and low melting point A material best. That means operating time of fuse = melting time + arcing time. Current Carrying Capacity of Fuse Wire. The current carrying capacity of a fuse wire depends upon a number of factors like, what material used for it, what are the dimension of it, i.e., diameter and length, size, and shape of terminals used to connect it, and the surrounding. Fuse La The material of the filament has (i) a high resistivity and (ii) high melting point. Usually tungsten (M.P = 3380°C) is used for the filament. 3. Safety fuse . The electrical wires that carry electricity to lights, fans and other electrical appliances have some resistance, although usually it is quite small

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Non-destructive Testing of Fuses – Kerry D

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Question is ⇒ The material used for fuse must have

Most low melting point alloys are bismuth based and William Rowland can produce a range of quality bismuth-based alloys to exacting specifications, including: WR 47 - Lens alloy - used for Lens blocking. WR 58 - Lens alloy - used for Lens blocking. WR 70 - Bend alloy - used for Tube and profile bending. WR 137 - Press alloy - used for. Most of our low-melting, fusible alloys are cast into square ingots measuring approximately 2-3/8 x 2-3/8 x 5/8 . The product names we use are the approximate melting temperatures in degrees Fahrenheit, as they have no definite melting point. These alloys are normally used in gravity casting, but they also can be used in other casting methods S. Kumar, in Comprehensive Materials Processing, 2014 10.05.8.3.2 Direct Tooling. It is possible to make ceramic products or ceramic-based products without the help of polymer binders. Low melting point materials such as Co, Cu, and Ni could be melted to bind higher melting point ceramic component to make tools (56,58,59).Laser-material interaction could be used to make in situ ceramic. 15. The material used for electric fuse is an alloy of tin and lead. This alloy should have. high specific resistance and low melting point; low specific resistance and high melting point; low specific resistance and low melting point; high specific resistance and high melting point In this page you can learn various important fuse multiple choice questions answers, mcq on fuse, short questions and answers on fuse,sloved fuse objective questions answers etc. which will improve your skill. A fuse element should have..... melting point . A. High. B. Low. C. Same . D. None of the above. E. All of the above . View Answer.

Introduction to Ohm's Law, Resistance, Resistivity

Fuse wire must have high resistance and low melting point

Why does a fuse wire have a low melting point? - Quor

On the other hand, copper wire cannot be used as a fuse wire because it has a high melting point (1094 deg C approx). Copper will not melt easily when a high electric current passes through it and may damage the electrical appliances. Here are some points regarding fuse wire material that you should understand A 13A fuse contains a low melting point wire. Fuses in plugs are made in standard ratings. The most common are 3 A, 5 A and 13 A. The fuse should be rated at a slightly higher current than the. It is known for its unusually low melting point, enabling the metal to form alloys easily, which in turn are used abundantly for applications such as moulds, fire detectors and fire extinguishers. The low melting point - 271.5 °C or 520.7 °F - along with the material's low toxicity, means that it can be heated at home, in stovetop. Description : The material used for fuse wire should be of (a) low resistivity and high melting point (b) high resistivity and high melting point (c) high resistivity and low melting point (d) low resistivity and low melting point Because of its low melting point, indium and bismuth alloys have been used in fire suppression systems for years. These alloys melt at low enough temperatures—from 50°C to 100°C—to trigger safety devices in the event of a fire. About Indium Corporation. Indium Corporation is a premier materials manufacturer and supplier to the global.

Answer: The device used in these days in place of electric fuse is MCB (Miniature Circuit Breaker). Question: State the property of a conducting wire is utilized in making electric fuse. Answer: Electric fuse wire is made up of special material which has low melting point. As if high amount of current is passed, it melts to disconnect the. to protect and is composed of an alloy which has a low melting point. A strip of this fuse is placed in series with the circuit. The working principle is that if the current is in excess then the strip would melt and break the circuit. There are different variants of fuse boxes available with different types of circuit breaking. For instance Due to its low melting point, indium can be used to produce a variety of fusible alloys. Such indium-containing alloys with a melting point in the range of 47 to 122 ° C are mostly used to manufacture various fuses, temperature controllers, and signaling devices. 6. The Uses of Indium in the Production of S olar Cell Low melting point Characteristics required in a material to be sued as an effective fuse wire are:1. High resistivity2. Low melting point Subject. Physics. Class. ICSE Class 10. Pre Boards. Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided

The material used for electric fuse is an alloy of tin and

PA (nylon)6,PA66 and PA66+GF30%. PA6 is a commonly used engineering plastics,and it has a wide range of industrial applications. Due to the good mechanical strength and stiffness ,PA 6 is widely used in structural parts. Also it has good wear-resistance characteristics for the manufacture of bearings The melt point for average commercial low-density polyethylene is typically 105-115 °C. You may be able to make thicker materials, but at some point you will run into problems because the pressing time will increase as the number of layers increases. Ideally, you would know the plastic, the melting point, and have a press set up at that. Ir has high melting point (2447 °C), high elastic modulus (570 GPa), and has fcc structure. The most recent Ir-base alloys are being developed based on the concept that if the alloy possesses two phases with one phase as fcc and another with L12 structure similar to γ′, then it can have good creep strength similar to Ni-base superalloys As means for satisfying the demand for minimizing the quantity of generated heat as well as the demand for ensuring a long useful service life, there is a proposal according to which a metal having a relatively low melting point, for example, silver or aluminum, is used to make a fuse. However, a fuse made of silver has the problem of high cost The fuse wire is usually made from tin-plated copper wire having low melting point so that it may melt easily. A copper metal wire (or any other metal wire or metal strip) should not be used as a fuse wire because it has a high melting point due to which it will not melt easily when a large current passes through it

Which one is correct for fuse wire ? (1) Low resistance

It's a fusible alloy (i.e. low melting point) used to bond metal workpieces together. The idea of using a lower melting point alloy to bond two or more metals has been around for thousands of years, but today's solder is typically a blend of tin, lead, and/or flux. Meet the Different Types of Solde Bismuth has also been used in solders. The fact that bismuth and many of its alloys expand slightly when they solidify make them ideal for this purpose. 1; Many bismuth alloys have low melting points and are widely used for fire detection and suppression system safety devices Compared to other metals, bismuth has a relatively low melting point, 271°C, and when it is alloyed with tin and lead, it melts at even lower temperatures. This characteristic opens up a range of interesting applications for bismuth-containing compounds. Bismuth alloys were once used in electric fuses as a way to interrupt high currents

Properties of Fuse Element Materials - Circuit Glob

Test Set - 1 - Switchgear and Protection - The test carries questions on topics such as Fundamentals of Switchgear, Types of Fuse, HRC Fuse, Arc Phenomenon in Circuit Breakers, Arc Extension in Circuit Breakers etc. This test comprises 32 questions. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams Low voltage fuses can be further divided into two classes, namely semi-enclosed or rewirable type and totally enclosed cartridge type. Rewirable fuses are most commonly used in housing wiring and small current circuits. It is also known as a kit - kat fuse. It has a porcelain base which is carrying the fixed contact through which the live wires are connected MCQ Questions for Class 7 Science: Ch 14 Electric Current and Its effects. 1. Electromagnet loses its magnetic property when. 2. A ____________ is used in torches. 3. Electromagnet is used in. 4. A device which prevents or allows the current to flow through it Silver or copper is normally used as the fuse element due to its low specific resistance. The fuse element normally has two or more sections joint by means of tin joints. Tin has a lower melting point of 240 0 C that is three times lesser than the melting point of silver (980 o C). Hence the melting of tin joints prevents the fuse from.

300+ TOP Switchgear & Protection Objective Questions Answer

low resistivity materials like copper or brass and covered with silver or tin in order to protect them from oxidation. - Fuse element: built with copper or silver ribbons, having cross section reductions or restrictions, locating in the central part the low melting point material (M effect). - Extinguisher material: quartz sand, which function. The surfacing material is simply applied to the substrate and fused in a furnace at a temperature sufficient to cause melting of the applied material which normally ranges between 870 and 1150 °C. These surfacing materials are usually composites such as tungsten carbide held in low melting point binder like a brazing alloy

Fuse Wire - What is it, What is it made of, Properties

Description: melting point of 157°C but a high boiling point of 2080°C; one of the highest liquidus temperature range of any metal. Indium has a low vapor pressure making it ideal for use in high vacuum applications. Indium is soft, pliable and malleable, even. Form / Shape: Bar Stock, Block / Billet CHM220 RECRYSTALLIZATION AND MELTING POINT. Introduction. Recrystallization is a common method used to purify a sample. As the name implies a solid sample with suspect purity is dissolved into an appropriate solvent. The dissolution process is achieved heating or changing the pH. When heat is involved a solvent is chosen in which the solute has.

TPEs bond to a broad range of plastic materials, and because of its low melting temperature, it can be molded with lower-cost commodity plastics that also have lower melt temperatures. LSRs on the other hand usually use a high processing temperature to ensure fast cycle times Know answer of objective question : For safety, the fuse wire used in the mains for household supply of electricity must be made of metal having ?. Answer this multiple choice objective question and get explanation and result.It is provided by OnlineTyari in Englis • The application of supplementary protectors— not to be used for branch circuit protection. The Fuses Rules 14-202 to 14-212 cover • Time delay and low melting point fuses — P and D marking • Use of plug fuses — limited to 125v line to line or 150v to ground • Non-interchangeable fuses — can't use a larger ratin Flame spray and fuse is a modification of the cold spray method. The materials used for coating are self-fluxing (i.e., they contain elements that react with oxygen or oxides to form low-density oxides that float to the surface, thus improving density, bonding, etc. They have relatively low melting points and require postspray heat treatment Selective laser sintering is an additive manufacturing (AM) technology that uses a high power laser to sinter small particles of polymer powder into a solid structure based on a 3D model.. SLS 3D printing has been a popular choice for engineers and manufacturers for decades. Low cost per part, high productivity, and established materials make the technology ideal for a range of applications.