Question: Which of the following material cannot be used as a moderator?

Q: In oxy-acetylene welding, the oxygen cylinder is usually painted in which color? Black В. Red White…

A: As per given question  In oxy-acetylene welding, the oxygen cylinder is usually painted in which…

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: Identify the Gas welding flame, in which the quantity of oxygen is more. select one: Arc welding…

A: Basics of Gas welding.

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: Why the maximum discharge rate should not be exceeded? a. Acetylene becomes unstable and could…

A: acetylene is non toxic ,odorless and very reactive gases , it can be used in gas cutting as well ass…

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: Explain the advantages of using superheater adns p

A:

Q: When the welding electrode coated by flux the welding process called : O Shielded Metal Arc Welding…

A: Given: WHEN THE WELDING ELECTRODE COATED BY FLUX THE WELDING PROCESS CALLED:

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: QUESTION 8 Oxyacetylene welding can be used for cutting metals with the same welding torch True…

A: Gas welding: It is a permanent joining process which melts the metal joints with the help of heat…

Q: 33- Which one of the followings is not used for heating the joining materials for soldering and…

A:

Q: What is missing below in order to satisfy the conditions necessary in order to cut when using an…

A: What is missing below in order to satisfy the conditions necessary in order to cut when using an…

Q: 9) Tungsten electrode is coated with low ionization potential elements for Increasing current…

A: In tungsten electrode welding, welding electrodes usually coated with metallic oxides such as oxide…

Q: When brazing the cylindrical parts, we use the of filler metal. *

A: Given:Brazing is the process of joining 2 or more metals.TIG means tungstun inert gas welding.PAW…

Q: Gas welding equipment is bulky in nature and hence make it difficult to transport. Select one: True…

A: Gas welding equipment is bulky in nature and hence make it difficult to transport. Select one:…

Q: why must the tip of the tungsten be hot?

A: Given : Tungsten Tip

Q: Give information about hydrogen embrittlement in the weld.

A:

Q: 14) Which of the following is not a type; of arc welding? O Metal Inert Gas welding (MIG) O Metal…

A: Metal inert gas welding is a type of liquid state welding in which wire is used as electrode.…

Q: Which of the following material have highet Heat Storage capacity ON Aluminum O b. Wood O c. Brass O…

A: The heat storage capacity may be defined as the heat stored in a material. To compare the heat…

Q: Draw the electric arc welding setup and explain its working principle.

A: Arc welding may be a welding process that's used to connect metal to metal by utilizing power to…

Q: Question: Which of the following material cannot be used as a moderator? Option 1: Graphite Option…

A: Answer: The correct answer is option 3 : Beryllium.

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: Which of the following gases are most frequently used as shielding to provide an inert atmosphere in…

A: It is required to choose correct option

Q: What are breeder reactors?

A: A breeder reactor is a nuclear reactor that generates more fissile material than it consumes.…

Q: The shielding gas used on carbon steel is ____.  A. Helium  B.Argon  C. Argon, or a mixture of…

A: The shielding gas used on carbon steel is CO2, or a mixture of CO2 and Argon option D will be…

Q: 36 - Flux usually provide additional function(s): I. provide a protective atmosphere for welding H.…

A:

Q: State three engineering assumptions to calculate kinematics and dynamic properties of the mixture of…

A: Welding fumes are made up of a complex combination of metals, metal oxides, silicates, and…

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: 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: Which of the following material cannot be used as a moderator? Option 1: Graphite Option 2: Heavy…

A: Moderator is used to slow down the fast-moving neutrons in a nuclear reactor. Deuterium

Q: Which among the following gas welding flame is used for welding Zinc and its alloys? a. Oxidizing…

A: Oxidising flame is produced when the amount of oxygen supplied is more than the one volume of the…

Q: Who is ultimately responsible for the welder’s safety?

A: Welding is a process in which a large amount of the gasses and heat released if all these are not…

Q: Which of the following is not a commonly used flux in welding process? O Potassium Boron O Sodium O…

A: Flux is used in Welding process in order to avoid oxidation  of base metal that is to be weld. And…

Q: Describe the relation between voltage and amperage for welding current.

A: Given Data : Welding

Q: What should you do if you have to leave a piece of hotmetal unattended?

A: A responsible person should mark any hot metal with "HOT" before leaving the office in order to…

Q: What is energy conversion used for ؟

A: Energy is present in many forms all around us such as electrical, kinetic, thermal, potential, and…

Q: 7) The temperature attained at the inner white cone in the oxy-acetylene welding is 1275°C 2100°C…

A: Welding is a fabrication method that involves fusing two or more pieces together using heat,…

Q: In gas welding, the oxygen- acetylene gases are mixed in_- a. Hose b. Nozzle c. Torch d. Pressure…

A: The process of combustion with oxygen O2 and Acetylene C2H2 is called the oxyacetylene welding…

Q: 17)Which is/are correct statement about the Thermit Welding process? Exothermic Reactions OIt is…

A: Thermit welding process is also called as exothermic welding because it generates heat through…

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: Describe the Chain Reaction that is triggered when fire has started.

A: The given question :Describe the Chain Reaction that is triggered when fire has started. The given…

Q: In gas welding process, which among the following type of flame where Acetylene is in excess…

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…

Q: Gas welding equipment is bulky in nature and hence make it difficult to transport. Select one: True…

A: Gas welding or gas cutting is an operation that uses fuel gas and oxygen to produce heat that is…

Q: The welding area is well ventilated to avoid ……………     Suffocation     Electrocution     Skin…

A: Welding safety measures are designed to protect workers from hazards present during welding…

Q: Which of the following processes isn't related to the fusion welding? a. electron beam welding O b.…

A: Correct option: (c) diffusion welding

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.