Find the centroid C(x, y, z) of the machine element shown in the figure below with respect to the given axis. r = 1 in. 4 in. 1 in 1 in. 3 in.. 6 in.

Q: The heat treatment that is used to remove the most hardness from steel is O a. quenching b.…

A: Annealing: It is a type of heat treatment process in which heat the steel up to a suitable…

Q: What is eutectic and eutectoid mixture?

A: Eutectic mixture is a mixture of components of alloys in particular ratio. Eutectoid mixture is…

Q: is one of the application of Cast Iron. a. Nails b. soft drink cans O C. c. Car body d. Food Packing

A: Cast iron is defined as the type of iron alloy which is widely used for the manufacturing of pan and…

Q: What happens during eutectic transformation?   a. Single phase transformation in solid state. b.…

A: In solidification at a point where Liquid phase of the material will transfer into 2 phase solid is…

Q: What is propose of riser designed

A: To explain the purpose of riser design.

Q: The purpose of heat treatment procedure for quenching is

A: Given Quenching process To find Purpose of quenching process

Q: y the types of cracking in a fusion pint

A: Last option is correct.

Q: Carburizing is the process where: -manganese contributes to the strengthening of the material -the…

A: Carburising is a heat treatment process in which carbon is diffused into the surface of low carbon…

Q: A- Choose the correct answer :- 1-Precipitation hardening is also known as a. Water Hardening b. Age…

A: Precipitation hardening is also known as Age Hardening Steels contain 0.8%C are called Eutectoid…

Q: What is the carbon percentage in low carbon steel?

A: Low carbon steel is also known as mild steel,

Q: Differentiate between equillibrium and non equillibrium cooling curve

A: The cooling curve is the graph showing phase change of material with respect to temperature of the…

Q: correct alloy that can be case hardened from the following options. Carbon Steel Aluminium Mild…

A:

Q: 6) The diagram used to predict the phase formations based on the various chemical compositions in…

A: The diagram used to predict the phase - formations based on the various chemical compositions in the…

Q: What is a complementary solutin?

A: In general the solution of a non-homogeneous equation holds two terms the complementary solution and…

Q: Hard soldering of metals can be done in the melting point temperature range of…

A: Hard soldering is a process in which soldering is done with solders of a liquidus temperature above…

Q: Plot the Iron-Iron Carbide phase diagram and indicate all phases and critical temperatures.

A: Phase Diagram-it is a  graphical representation  of the effect of temperature and composition upon…

Q: What three major factors affect the hydrogenembrittling process?

A: Hydrogen embrittlement(HE) is a type of environmental assisted cracking(EAC) which  refers to…

Q: An austenitic stainless steel contains - Ni. O 12 – 15 % O 8 - 12% O 15 – 18 % O 18 - 20 %

A: Austenite stainless steel is obtained by hardening of steel.

Q: Describe the Poisson's Ratio?

A: Poisson's Ratio: It is the ratio of lateral strain to longitudinal strain. The value ranges from…

Q: How is excessive sulfate accumulation prevented in Wellman-Lord (W-L) regenerative process?

A: The Wellman-Lord regenerative process is a process used for the removal of sulfur dioxide from the…

Q: The carbon percentage of AISI 4340 steel is O A. 0.40% O B. 0.43%. OC.0.0% C.0.0% O D.0.34%

A:

Q: Aluminum alloys are usually manufactured by

A: Option (c) is correct. Deep drawing process

Q: oduced in smaller quantities

A: True.

Q: applications in common equilibrium

A: Given:

Q: Identify the correct alloy that can be case hardened from the following options. O Aluminium O…

A: Tempering;- In tempering , brittle material(Martensite) are heated to a temperature below lower…

Q: This torch tool is used for

A: This torch tool is used for welding

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

A:

Q: ) Interstitial solutes are effective in hardening FCC alloys but less effective than in BCC  alloys.

A: When a solute atom is added to the structure of the material, it increases the mechanical strength…

Q: A steel case hardened by carburizing and quenching produces a Hard surface and tough core. Hard…

A:

Q: What are the advantages of MIG welding on stainless steels?

A: MIG : (Metal Inert Gas) It is a type of arc welding. MIG welding is carried out by placing an arc…

Q: What is the carbon content of lignite coal?

A: The lignite is brownish in color which is generally used in the steam power plant for the…

Q: 7. How is steel manufactured by basic open hearth process? What are the advantages of this process…

A: Basic oxygen lance furnace is a process of making steel where carbon-rich molten pig iron is…

Q: Ans. 4.44 x 10 rapid quenching from 800 K.

A:

Q: of answer choices Hydrogen and Nitrogen Hydrogen and Oxygen Oxygen and Carbon Nitrogen and Argon…

A: During melting, what two principal impurities are introduced into the melt pool when the ladle is…

Q: Draw the different types of grain configurations (by hand) and write their type of burning.

A: Given question: The different types of grain configurations and their type of burning. The given…

Q: Adding alloying elements like Cr in low alloy steels improves the a. wear resistance O b. ductility…

A: Adding alloying elements like Cr in low alloy steels improves the corrosion resistance

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

A: Answer is Beryllium Moderator:      a moderator is used to reduce the speed of fast neutrons…

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: In the plane carbon steel, microstructure consists of bright ferrite and dark cementite

A:

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.