Cold cracking in alloy steels can be reduced through Preheating of base metal Baking of electrodes OUsing of austenitic stainless steel electrodes O All of above

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 makes plain carbon steel harder than pure iron

A: Steel and iron are two of the most common materials used in the manufacturing industry. They are…

Q: Heating the metal above recrystallization temperature and then sudden cooling by dipping in water is…

A: It is required to evaluate given statement

Q: Would Aluminium be an optimal choice for a low load and high load cycle applications? Yes, as long…

A: Yes, as long as the load is below the Aluminium fatigue limit.

Q: 5) In soft soldering a low melting range alloy of tin and lead is used as filler metal. Select one:…

A: It is true

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: Difference in solubility of gases in molten and solid state of metal during welding promotes Cracks…

A:

Q: 5) The solidification of weld metal involves nucleation and grain growth, when No filler metal is…

A: Answer D. All of the above

Q: What type of heating is the best option needed for an aluminum cylinder to be heated evenly? Provide…

A: given; What type of heating is the best option needed for an aluminum cylinder to be heated…

Q: stiffness of the shaft, the general measures are

A: Solution.  The stiffness can be increased by. Replace carbon steel with alloy steel Surface…

Q: 8) Which of the following formula generally - used for low carbon steel? OElectrode tip diameter =…

A: When the electrode tip is too small , the nuggets will be form too small and weak , and when it is…

Q: Any steel used as a tool may be technically classified as a tool steel. However, the term "tool…

A: 1) True

Q: 7. What is the value of latent heat at the critical point?

A: Given :-  What is the value of latent heat at critical point ?   Latent heat :-  The latent heat is…

Q: Provide a general description of electric arc furnace used in Industrial Manufacturing of Steel

A: following is the answer to the above problem

Q: High c/a-ratio metals such as Zn will have the following property? (b) having high r-value (d) all…

A: Solution: Zn having Hexagonal closed packing structure has c/a ratio of the order of 1.856 with…

Q: Copper can be worked in hot condition Select one: True False

A:

Q: High strength low alloy (HSLA) steels were originally developed to reduce the weight of automobiles.…

A: 1.true High strength low alloy (HSLA) steels were originally developed to reduce the weight of…

Q: The type of corrosion that happed in screws and nuts application is O Fatigue corrosion O Crevice…

A: The type of corrosion that usually occurs in the application of screws and nuts is galvanic…

Q: 8) High chromium content in the austenitic stainless steel welds generally leads to Reduction in…

A: High chromium content is austenitic steel can lead to oxidation at high temperatures. The presence…

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: 12. The factor of safety is the ratio of working stress and the ultimate strength. O True False…

A: Given: Factor of safety

Q: What makes stainless steel corrosion resistant?

A: It is well known that stainless steel is the iron-based alloy. It is used in making many components…

Q: Compared to annealing, strength of a metal after tempering is Select one: a. same b. none of the…

A:

Q: Why are rivets of a 2017 aluminum alloy often refrigerated until the time they are used?

A: Hardness and strength of some material can be improved by Precipitation Hardening.  Precipitation…

Q: The 2XXX, 6XXX, and 7XXX series of raw aluminum alloy's or non-heat treatable and the 1XXX, 3XXX,…

A: Given: The 2XXX, 6XXX, and 7XXX series of raw aluminum alloy's or non-heat treatable and the 1XXX,…

Q: What is the main disadvantage of platinum spark plugs?

A: Spark plugs are the important component of  combustion engines. There are various types of spark…

Q: chromium, tungsten, Molybdenum, or nickel, or dissolved in fair right or combine with carbon to form…

A: Weather alloying elements such as chromium, tungsten, Molybdenum, or nickel, or dissolved in fair…

Q: 5-The external surface of the part of steel can be hardened by: a-Tempering b-Normalizing c-Case…

A: (5) Case hardening: It is a method which is used to increase the hardness of the outer surface of…

Q: 23- Mild steel can be hardened by heat treatment Select one: True False

A: As per given question we have solutions true or false

Q: temperature

A: An I-beam made of 4140 steel is heat treated to form tempered martensite. It is then welded to a…

Q: Plain carbon steel The block of an internal combustion engine Condensing heat exchanger for steam…

A: The block of an IC engine: (Grey cast iron):  It has high compressive strength which makes it…

Q: Q) give reasons it is preferred to coat steel with zn rather than with cu.

A: Metals that are more reactive safeguard less reactive metals by losing electrons first. Because zinc…

Q: what is the Aim of study shot peeing surface treatment of aluminum corrosion

A:

Q: Name two kinds of equipment that are used for heating steel to a precise hardening temperature

A: Required :- Any two kinds of equipment which are used for heating steel to precise hardening…

Q: The strength in the weld zone of an age-hardening aluminium alloy is often higher than in the heat…

A: particle that does not dissolve might transform into equilibrium phase instead , this is more likely…

Q: using tin in food production. using aluminum in overhead cables Carbon is lost from the positive…

A: 1) Using tin in food production Tin is the most commonly used material used for packaging food.…

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

A: Solution:

Q: Heating the metal above recrystallization temperature and then sudden cooling by dipping in water is…

A: what is quenching? Quenching is a heat treatment process . In quenching metal is heated to a…

Q: In _______________________________ process, heating the metal above recrystallization temperature…

A: Annealing process

Q: The cold worked components results in uniform properties of the metal. Select one: O True O False

A: There are three types of working condition during production process. These are cold working,…

Q: Explain with neat sketch, “Galvanizing” heat treatment process

A: As per Given question  We have explain galvanizing heat treatment process

Q: 7) Wear and corrosion resistant components such as cutlery equipment and razor blades are typically…

A: The main alloying elements in austenitic stainless steel is given below: Nickel: approx 8 to  11% ,…

Q: Question No. 19 Steel is classified as Special purpose and Thermosetting Plain carbon steel and…

A: Correct Option: Plain carbon steel and alloy steel.

Q: Among the list which metal seems to corrode (a) quickest (b) slowest? Are there any exceptions to…

A: Corrosion of metals occurs when almost complete or entire surface of metal get oxidized and damaging…

Q: Name three kinds of furnaces used for heat-treating steels.

A: The steel is an alloy made of iron and carbon. The thermal treatment of steel is very important. The…

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…