why is the fca welding process not used for open root critical welds

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: Name three popular welding processes.

A: This question is based on the concept of welding

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: With the electric arc welding rate of 18 in./min., how long will It take to weld a ½ in. Thick plate…

A:

Q: In addition to continuously changing the weld pattern,what other changes must be continually made…

A: Considered to be the most challenging pipe position is the 66 or 45° fixed inclined position.…

Q: Which one of the following is not a fusion welding process? (a) Gas welding (b) Arc welding (c)…

A: In fusion welding,  the parent metal melts for forming a joint. In non fusion welding,  the parent…

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: How can an SMA welding electrode’s flux help withdeeper penetration?

A: Shielded metal arc welding (SMAW) also known as stick welding, is a manual process using a flux…

Q: Why should convex weld faces be avoided?

A: Excessive Convexity This discontinuity can produce a notch effect in the welded area and,…

Q: Which of these welds could be analyzed using the AISC Code's "kips per inch" method? (Indicate all…

A: AISC stands for American institute of steel construction.It is basically quality management system…

Q: Q2) Answer the following questions:- (A) What is the Flux? Explain the purpose and the uses of the…

A: Welding is the process in which two metals or materials are joint with each other. In this process…

Q: Why are all welds not inspected to the same level orstandard?

A: Information Provided: Not all welds undergo the same level or standard of inspection. Not all welds…

Q: 13) Using a blend of Ar / 02 during the, FCAW process results in: Have a deeper penetration profile…

A: FCAW(Flux cored arc welding is identical to metal arc welding.  It combines the two welding…

Q: What is the minimum acceptance criteria for porosity for visual inspection of lap welds?

A: Lap welding: When two metals are attached in a overlapping pattern on top of each other then this…

Q: welding

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

Q: Which one of the following welding processes is suitable to weld bimetallic strips for measuring…

A: (1) Ultrasonic welding is used to weld very thin metal pieces. For instance it is used to weld the…

Q: What is the smallest V-groove angle that can be weldedusing the FCA welding process?

A: Given Data : Smallest V-groove angle  FCA welding process

Q: 7) Which type of FSW technique prevents plate thinning and hooking at advancing side of the weld…

A: Weld thinning and hooking in friction stir welding has been an inherent issue which affects the…

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: What protects the molten weld pool from oxidationduring a gas weld?

A: According to the oxyfuel gas welding   Primary reaction C2H2 + O2 = 2CO + H2 + LOSTS OF HEAT…

Q: How many inches of weld are required around each end of the BI pipe? (use

A: Given:  In the drawing there are 2 Bi pipes

Q: What bead pattern is best for overhead welds?

A: Vertical up overhead smaw is best bead pattern for overhead welding. While you're in the vertical…

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

A: Answer is Gold.

Q: How many categories of weld are associated with Weld symbols

A: There are so many categories of welds, these are given as with symbols, (1) Butt weld between plates…

Q: What helps hold the weld in place on a 4G weld?

A: 4G weld :-  It is an overhead position used for butt welds. Welders need to hold the torch from…

Q: Why is a prototype custom fabricated before producing multiple weldments

A: Why is a prototype custom fabricated before producing multiple weldments

Q: What can happen to the weld pool if the torch movement is too long?

A: 'Weld pool' is a term used in the terminology of the welding process. Weld pool is the molten metal…

Q: Explain minimum 3 types of welding position for groove and fillet weld?

A: WELDING  Welding is a manufacturing method through which two or more components are joined by heat,…

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: - If the welding process is to be changed from MMAW to MIG/MAG, do you need to re-qualify the…

A: GMAW utilizes a consumable electrode continuously supplied from a wire spool. So no intermittent…

Q: (b) Describe the principles of following welding methods. (i) (ii) (iii) (iv) MIG welding TIG…

A: GIVEN-            TOPIC WELDING PROCESS FIND- PRINCPLES OF DIFFERENT WELDING PROCESSES        I -…

Q: 10 - Mark the correct statement about Gas Metal Arc Welding.

A: To select the correct option among the given options :

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: Q2B/ Answer any one of the following: 1. Define weld decay and how can be prevented

A:

Q: Describe FIVE (5) major hazards and precaution measures of Arc Rays and Spatter during performing…

A: Solution:   Five major hazards and precaution measures of Arc Rays and Spatter during performing Arc…

Q: Why is it important to make sure that an FCA welding system is set up properly if out-of-position…

A: Sparks and ultraviolet light are used in the operation of FCA. Its main job is to create…

Q: What is the difference between (PAW) and (TIG) welding? * Construction of torch is different Gas is…

A: The Tungsten inert gas welding is a non-consumable type of welding process, in which tungsten…

Q: 5) The type of environment that offers best protection to the molten weld pool during fusion welding…

A: There are many types of fusion welding such as, shield metal arc welding, plasma arc welding,…

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: Submerged Arc Welding

A: Submerged-arc welding (SAW) is a common arc welding process that involves the formation of an arc…

Q: B. In arc welding process. What role does electrode coating play in producing a satisfactory weld?

A: The arc welding process is a special type of process in which arc is used to heat and melt the metal…

Q: In any structure, vicinity of weld zone which type of stress develops during the process of welding?…

A: Tensile residual type of stress develops during the process of welding

Q: 9) Which of the following joining- techniques are referred as dual shield welding process? O PAW O…

A:

Q: How do excessive amounts of manganese affect a weld?

A: The fabrication process is the process which is involved to build a product by mixing standardized…

Joining Processes

It is the process of permanent or temporary joining of two metal pieces with the help of heat or pressure. Two metal parts are assembled by applying an energy source for the formation of a single unit. The obtained joined metals cannot be fragmented easily with the application of any force.