33- Which one of the followings is not used for heating the joining materials for soldering and brazing operations?

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: What fluxing agents act as scavengers in the molten weld pool?

A: There are many elements added to the filler material of the electrode. Each element has its purpose…

Q: 10)Which of the following is a technique to, minimize the distortion in a large weld components? a.…

A: Weld distortion is caused by the expansion and contraction of the weld metal and surrounding base…

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

A: Concept: Flux cored arc welding process is a arc welding process in which heat for welding process…

Q: Which one of the following arc welding processes produces the highest temperatures? * O SAW O CAW O…

A: It is asked that which arc welding can produce high temperature. SAW - it is submerged arc welding…

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: 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: 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 are the parameters of inert gas welding process?

A: The parameters for the inert gas welding process are as follows: Welding Current Welding Voltage…

Q: is the melting temperature range of soft soldering. a. 183°C-212°C b. 500°C-650°C c. 150°C-175°C d.…

A: Soft solder regularly incorporates a softening point run of 90 to 450 °C (190 to 840 °F; 360 to…

Q: some of the factors that influence the cost of making a weldment

A: Various factors affecting the cost of making a weldment: 1) The type of equipment used. 2) Required…

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: O)Which of the following can be easily welded from flash butt welding process? OTin OLead O Cast…

A: Flash butt welding is the resistance welding type in which two material are joined by making small…

Q: what describe the soldering motheds in detail

A:

Q: what needs to be prepared before welding?

A: To determine: Preparation before welding

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: 12- Brazing and soldering are attractive comparing to welding for some situations: I. the metals…

A: It is required to determine in which situation brazing and soldering is used

Q: 4) Which material cannot be weld using friction stir welding process?

A: Answer is Gold.

Q: Which of the following  welding processes does not use consumable electrodes? a. Gas Welding b.…

A: Which of the following  welding processes does not use consumable electrodes? a.Gas Welding…

Q: Using Table 10-1, answer the following:a. What maintains the arc in machine welding?b. What feeds…

A: Using Table 10-1: a.Machine maintains the arc in machine welding

Q: In gas welding, the temperature at the core of the flame is _______________  .   3000 º C   30 º…

A: Gas welding is a welding process which joins the metal parts by heating them with a flame which is…

Q: Which of the following is true about soft-soldered joints?   a. High power is required.   b. Can…

A: Soldering: Soldering is a metal-to-metal joining procedure in which solder is melted and used to…

Q: The temperature range for soldering process is 1) 40°C to 100°C 2) 180°C to 250°c 3) 300°C to 500°C…

A: Soldering is a process of joining of metals with non ferrous filler metal. The temperature is below…

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: 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: ndividual weld nuggets formed are s to form a sealed seam. The powe ated that goes into the…

A: given:thickness t=5mmE=2.9J/mm3current I=6000At=0.3secdw=6mmtw=3mm

Q: What is the approximately temperature of arc needed for arc welding? O 600-1000°C O 6000-8000°C O…

A: Solution:

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: The product of mixed acetylene oxygen and burned at the tip of the welding torch are *

A: there are two processes, Primary combustion - occurs in inner envelope. Secondary combustion -…

Q: If you need narrow deep penetration weld for heavv base metal, which type of current polarity you…

A: Solution:

Q: What may happen if the GMA welding electrode is allowedto strike the base metal outside of the…

A: given; What may happen if the GMA welding electrode is allowed to strike the base metal outside of…

Q: What term describes the fusion or growing together ofthe grain structure of the materials being…

A: The term describes the fusion or growing together of the grain structure of the materials being…

Q: 1) Which of the following is an example of solid-liquid joining process? Friction welding Tungsten…

A: friction welding: friction welding is done by using ruption between two metals so this is not a…

Q: What percentage of a change are we allowed in travel speed when welding flux core?

A: The MIG welding technique has developed into flux core welding or tubular electrode welding to…

Q: what welding machine leads or type of torches need to be deployed before welding?

A: A welding torch is utilized in a programmed welding framework to coordinate the welding anode into…

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: what items need to be turned on before welding

A: The terms to be turned on before welding : 1. Safety: This is the most important factor which should…

Q: (b) Illustrate the schematic diagram of shielded metal-arc welding process.

A:

Q: How is a flux cored arc welding (FCAW) electrode wire different from a gas metal arc welding (GMAW)…

A: It is required to differentiate between FCAW and GMAW electrode

Q: 5) Which one of the following options is true about friction stir welding? Fine microstructure is…

A: Solution:

Q: 5. The temperature of the hard soldering or silver brazing is 842F°. (a) above (b) equal (c) under

A: The temperature of the hard soldering or silver brazing is about 1145°F to 1650°F

Q: What properties of a metal can be affected by the choiceof welding process?

A: In the welding process, most of the properties of the metal are affected, While welding the material…