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

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: What are the grooves most often used for welding on mild steel pipe

A: Single V Single U Single J Single bevel grooves

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: a) Why should check-valves be fitted to gas welding torches? b) Why should fuel tanks be…

A: (a) Check valves are used as to prevent gasses from mixing upstream of them. As, when a flammable…

Q: What can make welding in the 2G vertical fixed pipe position difficult?

A: The following is how the 2G welding positions are used. 1. Vertical position is used when using 2G…

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: What is the heat distribution with DCEN welding current?

A: Direct Current Electrode Negative(DCEN) or Direct Current Straight Polarity(DCSP) is a type of…

Q: Why should there be a space between the plates whenmaking a fillet weld on thick plates of a tee…

A: Fillet welding refers to the process of joining two pieces of metal together when they are…

Q: a). Explain the three types of flames produced in the gas welding process. b). Explain the soft…

A:

Q: the net heat input per unit length of the weld.

A: Given data;  Gas tungsten arc welding operation is performed using Voltage=30 V Current=520 A…

Q: Why should convex weld faces be avoided?

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

Q: what setting needs to be adjusted before welding?

A: Setting needs to be adjusted before welding :-

Q: Why must a welding machine’s duty cycle never beexceeded?

A: A load or circuit's duty cycle is the proportion of time spent ON to time spent OFF. Duty cycle,…

Q: when making a vertical weld and it appears that the weld metal is going to drip over the shelf, what…

A: In vertical weld, the welding is done from the bottom position to vertically upwards position. In…

Q: welding

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

Q: Why must cast iron weld metal be ductile

A: Cast iron is the alloy of carbon and iron. Cast iron has high hardness due to presence of high…

Q: 24. Why is it important not to strike the arc outside of the weld joint?

A: Welding is a fabrication process in which two similar metals or dis similar metal are joined with…

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: 4. Write the steps for starting and switching of oxy welding flame in your own words.

A: Starting the oxy welding flame 1. check if the gas flow from the oxygen and the acetylene cylinder…

Q: After the weld is set up and ready to begin, how mightthe welder want to check for freedom of…

A: Welder method for determine the degree of freedom

Q: A self-regulating arc is formed during GMAW: (while using small diameter electrode) if

A: Explanation A self-regulating arc or automatic welding we always used constant voltage power source…

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: What is the first weld bead of a multiple pass weld called?

A: Root Pass  is the first weld bead placed in the weld joint in a multi-pass weld.

Q: what PPE should be worn when welding?

A: PPE:  The PPE stands for personal protective equipment. Some PPE parts need to be wear during…

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: A good electrode holder in arc welding should be Weak insulation to protect against accidental…

A: Hi and thank you for the questions. Since you have asked multiple questions, we will solve the first…

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

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

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: how to weld tool steel with the oxyfuel process

A: Oxy-fuel process: Oxy-fuel welding includes those welding operations which use the combustion of a…

Q: List two types of grinders used by welders.

A: welding is a joining process in which two metallic pieces are jointed with the help of heat or…

Q: Which of the following tools is not essential while doing arc welding?

A: Answer:  Snips

Q: Joining the sheets at specific locations under the heat and pressure is known as Select one: a.…

A:

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: types of welding seams and their uses

A: Answer is given below

Q: What problem must be overcome if the amperage and voltage are lowered to make a vertical weld?

A: Vertical welding:- The vertical welding is defined as a weld is applied to a vertical surface or one…

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 welding process?

A:

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

A: Critical welds are the welds whose failure could be a disaster in terms of loss of property or human…

Q: To determine: (a) The thing used to maintain the arc in machine welding.

A: Given Data : Arc  Machine welding

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: If the base metal thickness is 3.2 mm, what will be tip size of the torch and what are acetylene and…

A: If the base metal thickness is 3.2 mm The tip size of the torch is 1/32" The acetylene pressure =…

Q: What can happen if welding standards are lax?

A: A weld can be laid out, conducted, and evaluated according to specific guidelines defined by…

Q: Which of the following is not a general safety practice you should follow when using welding…

A: Which of the following is not a general safety practice you should follow when using welding…

Q: What will be the notation of throat length of a fillet weld

A: Given data⇒ Fillet weld Throat length

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.