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 workpiece

Q: Hard soldering of metals can be done in the melting point temperature range of O 183°C-212°C…

A: Hard solders are used for brazing, and melt at a higher temperatures,alloy of copper with zinc or…

Q: Select a suitable welding process that is applied to join quickly 10,000 pieces of Car Chassis Body.

A: AS PROCESS OF MAKING 10000 PIECES OF CAR IS A BIG PROJECT . AUTOMATION IS REQUIRED WITH GOOD…

Q: Outline the principle of Ultra Sonic testing for checking deeply imbedded defects in a welded joint.

A: Ultra sonic testing is one the non destructive technique used for testing the defects inside a solid…

Q: Name three popular welding processes.

A: This question is based on the concept of welding

Q: 14 Flashbacks are common in gas welding process if metal surface are not cleaned. Select one: True…

A: The above statement are false.

Q: Discuss in details different type of resistance welding with the help of best diagram

A:

Q: In the resistance welding process, select the factor/s that contribute to accomplish coalescence:…

A: Resistance welding: It is the permeant joining process for metals by passing current for a length of…

Q: 3. What are the characteristics of the different welding rods use in oxy-acetylene welding? Please…

A: given; what are the characteristics of the different welding rods use in oxy-acetylene welding?…

Q: Why is argon the most commonly used shielding gas for GTA welding?

A: Argon is the used as a shielding gas for GTA welding because as we know argon is an inert gas and…

Q: Why is cost a consideration in joint design?

A: The joint design is one major way to control welding cost. If any changes in the design can reduce…

Q: 1. Name the three main types of welding processes.

A: Solution:   Note: Dear Student! As per our guidelines, we are only allowed to answer a single…

Q: Give information about the reasons why the weld is preferred over other fastening methods

A: Welding is a process in which localized permanent joint can be produced by fusing two elements with…

Q: What are the main reasons for using a coating in all arc welding rods and not used in the case of…

A: The reasons for using a coated electrode in arc welding

Q: Name three items that are manufactured using welding.

A: Welding is a process in which localised permanent joint can be produced with or without the…

Q: In order to prevent oxidation and retain molten metal in stud welding which of the following is…

A: Answer :- Option (d)

Q: a) Why is automation of the covered electrode arc source difficult? b) what properties is a metal…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

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: Discuss the Quality of flame required to do gas welding and give any four advantages of gas welding.

A: Quality of flame used in gas welding

Q: <, latent heat of melting = 398 kJ/kg) at a temperature of 30°C, a pulse with energy of 0.5 cussed…

A:

Q: accuracy of the finished workpiece in welding works?  Is it possible to have an accurate workpiece…

A: INTRODUCTION  Welding desertsWeld deformities, for example, breaking and porosity greatly affect the…

Q: differences between brazing and oxy fuel gas welding Propose any two welding defects that can be…

A:

Q: safety practices of performing Submerged Arc Welding process

A: Helmet, shield and all other safety equipment are must as per OSHA requirements during all arc…

Q: What is GTAW in welding and What are the uses of it.

A:

Q: Discuss the arc welding quality and type of defects involved? What are the inspection and testing…

A: Arc welding quality: The arc welding qualities are given as under: (1) There will be no cracks in…

Q: Explain the welding method used for welding more than 25 mm thickness mild steel plates with neat…

A: Solution:

Q: 6) Residual stresses in the GMAW joint can be reduced through O Use of low coefficient of thermal…

A: Residual stresses in the GMAW joint can be reduced through Increasing the weld metal volume

Q: What is welding and what type of fastening is it? Draw any four elementary weld symbols with its…

A: Solution:

Q: Which mode of power supply generally employed for welding 3.0 mm sheets by PAW process?

A: Plasma Arc Welding (PAW) is a liquid-state shielded metal arc welding process that uses hot ionised…

Q: What advantages do the welded joints offer in comparison to riveted joints? Explain a minimum of…

A: ADVANTAGES : The welded structures are usually lighter than riveted structures. This is due to the…

Q: Discuss any five differences between the soft soldering and hard soldering process used in joining…

A: Soldering is the joining process of similar or dissimilar materials with the help of filler…

Q: Welding is a material joining process in which two or more parts are fused at their contacting…

A:

Q: what is the thickness of the weld nugget assuming it has a uniform thickness?

A: I = 11000 A R = 0.000130 ohm t = 0.25s H = I2Rt = 11,0002 (0.000130)(0.25) = 3,930 J

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: welding

A: given arc welding processes that are suitable for performing welding task at the site and working at…

Q: In flux-cored arc welding process, the type of electrode is a; * O Welding rod Welding wire O…

A: Flux cored is an arc welding process. that uses a tubular wire electrode with flux filled inner…

Q: 1) The development of residual stresses in weld joint is due to? Heat treatment operations OUnevenly…

A: Residual stresses are the stresses that remains in the material even after the removal of the force…

Q: What are the different hazard in using Arc and Oxy-acetylene welding?

A:

Q: In gas welding, oxygen is used as a source of heat. Select one: True False

A: Gas welding: Oxyacetylene welding is also known as gas welding. Oxygen and acetylene are two gases…

Q: Define welding?  2/ Explain with neat sketch, “Gas welding” process.

A: Welding is a fabrication process in which two similar or different metals are joined with the help…

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: Name and sketch 2 systems of oxygen/acetylene welding in workshop.

A: The above diagram shows the basic oxy-fuel gas welding equipment. It is also known as Oxyactlene…