1) Which of the following is an example of solid-liquid joining process? Friction welding Tungsten inert gas welding Joining with nut and bolts Brazing
Q: Why is it important to clean all contamination such as oxides, oil, and dirt off of the surface of…
A: Gas tungsten arc welding (GTAW): In gas tungsten arc welding, a non-consumable electrode made of…
Q: Two stainless steel foils of 0.2 mm to be joined. Which of the following process is best suited? MIG…
A: The correct answer is plasma arc welding. Welding of stainless steel foils of 0.2 mm require…
Q: 10)Which of the following statements are pertaining to laser transmission welding? I. Fast cycle…
A: Following problem is based on Laser beam welding :
Q: With the electric arc welding rate of 18 in./min., how long will It take to weld a ½ in. Thick plate…
A:
Q: Stick" welding is a term sometimes" applied when referring to which one of :the following processes…
A: Flux Shielded Arc Welding or Stick Welding is a manual arc welding process that uses consumable…
Q: a). Explain the three types of flames produced in the gas welding process. b). Explain the soft…
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Q: Which one of the following welding processes is suitable to weld bimetallic strips for measuring…
A: Roll welding can be used to join bimetallic strips for temperature measurement.
Q: Explain the Importance of Welding Process? What are the different types of welding processes and…
A: Welding: It's a permanent joint between two materials. Importance of Welding: 1) Welding can provide…
Q: Which group of electrodes are best suitable for high temperatures during resistance spot welding?…
A: Spot welding- It is one of the type of resistance welding used for joining of sheet metals. Two…
Q: 4) The primary issue in fusion welding of material having high coefficient of thermal expansion is O…
A: Due to higher coefficient of thermal expansion the material joint can have high strain, that can…
Q: 15)In which type of resistance welding, capacitor-discharge is used? Butt welding OSeam welding O…
A: Out of all the four given options, capacitor-discharge is used in Percussion welding. In which, the…
Q: 1) Which of the following processes can be used as alternative technique for joining aluminium and…
A: The main difficulty that occurs in aluminium and it alloy welding is that oxide layer formed which…
Q: In order to prevent oxidation and retain molten metal in stud welding which of the following is…
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Q: 1. What is the difference between shielded Metal Arc Welding and Gas Metal Arc welding process (at…
A: SMAW GMAW Flux-coated eletrode is used and flux layer is thicker In GMAW, Bare electrode is…
Q: In Resistant Spot Welding (RSW), select TWO (2) appropriate type of electrode material when joining…
A: Given: To determine TWO (2) appropriate type of electrode material when joining non-ferrous metals
Q: Define welding process.what are the limitations and drawbacks of welding in the field of Mechanical…
A: This question is based on the concept of welding
Q: 7) Which group of electrodes are best suitable for high temperatures during resistance spot welding?…
A: Solution:
Q: Riveting is an example of electrical and electronical joining process. Select one: True False
A: The given statement is false.
Q: a) With a neat diagram briefly explain about Arc Welding process. (Minimum one and half page) b)…
A: (a) To explain: Arc Welding process briefly with neat diagram: Explanation: Arc Welding process:…
Q: 7) Which one of the following welding process referred as a dielectric welding process?
A: Dielectric welding: It is a welding process used to join the sheets of polar thermoplastic material…
Q: What is the function of flux in submerged arc welding?a) To completely cover the welded zone b) To…
A: In the submerged arc, welding flux acts as an oxygen barrier by creating a coating for the surface…
Q: In which of the following welding process heat and pressure is applied on the joint but no filler…
A: we are to determine which welding method requires application of pressure and no filler material
Q: 1. a) With a neat diagram explain types of flames in gas welding. Write any one application of each…
A: Types of flames in gas welding ;
Q: a. electron beam welding b. gas metal arc welding - c. diffusion welding d. plasma arc welding e.…
A: All except diffusion welding process is related to the fusion welding.
Q: Which of the following is not a factor that strengthened soft solder joints? a. Solder composition…
A: Soft soldering is a technique for connecting metals that uses a Eutectic Tin/Lead Alloy.…
Q: 2) Which of the following is NOT true about friction stir welding? O It is a solid state process…
A: As per given question We have to choose which one is not true about friction stir welding
Q: 1) laser micro-welding technique is used to weld transparent polymers without the use of any…
A: TWIST ("Transmission Welding by Incremental Scanning Technique") is a micro welding technique where…
Q: Which one of the assembly processes require metal fusion? a)Adhesive bonding b)Rivet fastening…
A: Which one of the assembly processes require metal fusion? Answer: d) Arc welding
Q: Which one of the assembly processes does not require metal fusion? Gas welding Adhesive…
A: There are two types of welding operations: 1) Fusion welding: parent metals are melted. 2) non…
Q: Gas welding is a fusion welding process. Select one: O True O False
A: The fusion welding process is defined as the joining process in which two different or similar…
Q: Brief description on all cold working methods, hot working methods and all kinds of welding.
A: solved
Q: Gas welding is an example of Seam welding Spot welding Pressure welding Fusion welding
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Q: Select TWO (2) types of arc welding processes that are suitable for welding hot passes quickly and…
A:
Q: Select TWO (2) arc welding processes that are suitable for performing rapid welding task especially…
A: Given: To give TWO arc welding processes that are suitable for performing rapid welding task…
Q: What unusual metal combination can be welded usingpercussion welding?
A: Percussion welding (PEW) is a type of resistance welding that blends dissimilar metals together.…
Q: (b) Illustrate the schematic diagram of shielded metal-arc welding process.
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Q: Screw fastening is an example of electrical and electronical joining process. Select one: O True…
A: Given :- Screw fastening is an example of electrical and electronical joining process. Select one:…
Q: Which of the following best explains why the exothermic nature of the reaction is important to the…
A: Here option (D), The reaction releases heat, which is then absorbed by the products, so they melt,…
Q: 5) Which one of the following options is true about friction stir welding? Fine microstructure is…
A: Solution:
Q: In an arc welding process, which of the following parameters has most influence on the material…
A: Explanation Marangoni effect: Due to marangoni effect thetransfer of mass take place at the…
Q: 9) Which of the following joining- techniques are referred as dual shield welding process? O PAW O…
A:
Q: Welding is defined as a joining process that produces coalescence of materials by heating them with…
A: This question is based on the concept of welding.
Q: 21 Which statement is false for Laser beam welding?
A:
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- 5) Which of the following welding processes combination suitable for dissimilar joining of Plastic and metal? I. Electron beam welding II. Vibration welding III. Laser beam welding IV. Resistance welding (a) I and IV (b) Il and IV (c) III and IV (d) I and IIIII) Name several products that have been assemble by 1. Resistance Spot Welding 11. Submerge Arc Welding 111. Seam Welding įv. iv. Brazing V. Soldering 12) Compare the differences between brazing and oxy fuel gas welding 13) Propose any two welding defects that can be prevented by modifying the joint design and justify the importance of redesigning the jointQuestion No. 15. Which of these method is suitable for joining an air tight or liguid tight container • Spot welding soldering O Sintering Seam welding Brax Ouestion Question »
- 2) Which of the following is NOT true about friction stir welding? O It is a solid state process Fine grained structures can be obtained O It eliminates friction welding problems O It alters the chemical composition of the workpiece8) The correct ways to control liquation cracking tendency in fusion weld joint are I. Use of filler metal that solidifies before the partially melted zone I. Use of single pass welding with higher net heat input instead of multipass welding III. Use of high energy density processes IV. Preheating the substrates V. Use of base metals with fine grain structure OI, II, and III II, and IV OII, IV, and V O II, III and IVWhich one of the following is not a fusion welding process? (a) Gas welding (b) Arc welding (c) Brazing (d) Resistance welding
- Riveting is an example of electrical and electronical joining process. Select one: True False12 Brazing and soldering are attractive comparing to welding for some situations: I. the metals have poor weldability II. only same metals are to be joined III. the intense heat of welding may damage the components being joined IV. the geometry of the joint is not suitable to any of the welding methods V. high strength is a requirement. a) I-II-II b) I-III-IV 1-II-III-IV-V 1-11 Only !QUESTION 1 In an arc welding operation, a groove weld has a cross-sectional area=0.055 in² and is 24 in long. (Round your final answers to 1 decimal place) (a) What quantity of heat (in Btu) is required to accomplish the weld, if the metal to be welded is aluminum? Btu (b) How much heat must be generated at the welding source, if the heat transfer factor = 90% and the melting factor = 60%? H= Btu
- Identify the electrical and electronic joining process from the following. Riveting Adhesive bonding Screw fastening CrimpingAnswer by true (T) or false (F) for the folling sentences 1. Fusion welding means that the two surfaces to be joined and the filler metal are meling during welding and then solidifying in similar menner to local casting process. 2. In oxyacetylene welding process, the welding is done using oxidizing flame only. 3. Explusive welding process produces strong joints of dissimilar materials that are not weldable by are. 4. Hot working leads to eliminating the porosity in the metal and increasing the strength and hardness. 5. Work hardening is a characteristic induced in the processing part because of the heat treatment.2.8 Advantages of Submerged Arc Welding Cost per unit length of joint is relatively low The arc is under a blanket of flux, which virtually eliminates arc flash, spatter, and fume. • Extremely high deposition rates and welding speeds are possible. • Sound welds are readily made (with good process design and control). High current densities increase weld penetration and decrease the need for edge preparation. High speed welding of thin sheet steels at over 2.5 m/min is possible. Can be easily Automated Minimum welder training is required (relatively unskilled welders can be employed). • Low hydrogen weld deposits can be produced. • The flux acts as a scavenger and deoxidizer to remove contaminants such as oxygen, nitrogen, and sulphur from the molten weld pool. This helps to produce sound welds with excellent mechanical properties. 26 2.9 Limitations of Submerged Arc Welding Initial cost of wire feeder, power supply, controls, and flux-handling equipment is high. Limited to ferrous…