123) Which is not a common mistake in sand casting? A. sand erosion B. swelling C. slip D. gas gap E. Explosion 124) Copper windings are used for heating which furnace? a) sarcastic B) Electric increase C) Crucible D) Kuool E) Induction 125) Which is not one of the process steps of investment casting? A) lifting the model cluster into the refractory mud and forming a thin layer on its surface B) production of wax models C) heating the scribe to a high temperature to remove all unwanted substances from the mold D) Hot pressing of the model E) Creation of model clusters

Q: Fill in the blanks with a suitable WORD / PHRASE A) Polymer soften on heating and harden on cooling…

A: A) Polymer soften on heating and harden on cooling is thermoplastic polymer.

Q: a) The shape of the designed windows of the manufactured planes is square. The investigation team…

A: The suggestion of the investigation team that the windows of the plane are the main cause of the…

Q: 11 1. Screw threads can be fabricated by PM II. Wall thickness should be a minimum of 1.5 mm III.…

A: screw threads are cannot be fabricated by PM, if it is necessary they must be machined into a part.…

Q: fa

A: It is (True)

Q: 1. a) With a neat diagram briefly explain about Investment Casting process. b) Write any four…

A: The Answer is below

Q: 31 - Which of the following is not one of the strengthening methods of steels. A) Cold drawing B)…

A: Solution:

Q: Which invariant reaction can be recognized in 2300 210 1900 1700 1500 1300 Temperature, "C (A)

A: the peritectic reaction can be easily recognized in the phase diagram.

Q: In hot chamber pressure die casting process, typical rate of production of parts is ___. a. 10…

A: hot chamber pressure die casting has high rapid production rate. which is having low melting points.

Q: 172) Which production method is used for cooling with water spray? A) Blast furnace B) electric arc…

A: 172) Which production method is used for cooling with water spray?A) Blast furnaceB) electric arc…

Q: Assume you are a casting engineer working in a foundry in Sur. You have to develop the casting…

A: Part (i) Cold chamber high-pressure die casting process will be used for the given condition. Part…

Q: 82) Which is true for low alloy Steels? A) they contain less than 1% of additional alloying elements…

A:

Q: 122) Which is not one of the model types used in sand mold casting? A. split model B. complex model…

A: Given: 122) Which is not one of the model types used in sand mold casting?A. split modelB. complex…

Q: II. Multiple Choice. (Each question has only one correct answer. Choose the right answer and fill…

A: Given: Multiple choice questions

Q: Assume you are a casting engineer working in a foundry in Sur. You have to develop the casting…

A: (i) The type of casting process mentioned above is the die casting process. (ii) Die Casting: Die…

Q: c) One of the bestselling items at the stall are gummy worms, so you decide to perfect the recipe.…

A: The force vs extension plot is given in the figure. We can calculate stress and strain from it and…

Q: 49- What is Frenkel error?

A: 49).Frenkel is point defect. In which cation displced from its original position to void between…

Q: 3- (CLO-1) Which statement is false for plaster mold casting? a) Plastic or metal pattern is used,…

A:

Q: They are characteristics of a solid solution Choose 5 options A) It has limited solubility B) It is…

A: Solid solutions (solutions in solid state) are single phase alloys. They have solute and solvent, so…

Q: 13. In Steel produced by BOF or electric furnace. The treatment involves adding in elements such as…

A:

Q: 39 - (CLO-2) I. Deep drawing II. Extrusion III. Forging IV. Rolling Which one(s) is/are bulk…

A: 39) option b is correct.

Q: ADVANCED MANUFACTURING PROCESS 1) What differences would you expect in the properties of castings…

A:

Q: 16 - (CLO-1) Complete the sentence with the correct statement. . compensate for shrinkage during…

A: Chaplets are small metal inserts or spaces used in the casting mold to support the core during the…

Q: 0) The lowest melting point for steel to be taught in the iron carbon phase diagram... A) eutectoid…

A:

Q: 30- After which step during the tensile test the force starts to decrease? A) at the start of the…

A: As multiple questions are asked only first question has to be solved.  Please post the other…

Q: 88) What is the most important property of refractory metals?

A: 88). Refractory material is material which can withstand the high temperature. other option might be…

Q: Assume you are a casting engineer working in a foundry in Sohar. You have to develop the casting…

A: i )  the casting process in which the molten metal is forced under pressure and is immersed in a hot…

Q: 3) The configuration of Hhe multiple - effect eva poration Process Bacn can be feed a) For ward Feed…

A: GIVEN DATA - A MCQ GIVEN ABOU EVAPORATION WE HAVE TO CHOOSE CORRECT OPTION

Q: In a eutectoid steel the following microstructures are required for different application. Suggest…

A: Professor bain heated some steel samples having an eutectoid composition at a tenperature at which…

Q: 1)What is types of cast iron? Explain detail with; a)Elemental composition b)Production method…

A: 1 2

Q: Which of these microstructures arrangements is going from high to low strengths? O a) Martensite,…

A: To find : Rank the microstructures arrangements from high strength to low strength

Q: Vhich is NOT a way to change the number of phases in a phase diagram? a) Change composition b)…

A: Correct option is (d)  Change time duration.

Q: 26 Which one of the following is not a step of investment casting? a) Making the wax patterns b)…

A: Investment casting uses wax patterns. The patterns are attached to a sprue. Pattern tree is coated…

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.