A critical component of quality heat treating is employing the correct hardness testing method to show manufacturers their parts achieve design requirements. Stress relaxation is the phenomenon (A) In which parts are not loaded (B) In ... I.C Engines Multiple Choice Questions with Answers - … The process which improves the machinability of steels, but lowers the hardness and tensile strength, is ... is more ductile and has a less tendency to distort during heat treatment. There are both continuous and periodic discharges of wastewater streams, from two different types of heat treatment quenches used for cooling the copper product after it exits the forming machine and from the quenches following the annealing process. Hardening. The solved questions answers in this Heat Treatment Of Metals And Elastomer - MCQ Test 2 quiz give you a good mix of easy questions and tough questions. Typically, in steels, annealing is used to reduce hardness, increase ductility and help eliminate internal stresses. Which is closest to the purest form of the iron? 1. Question is ⇒ The heat treatment process used for castings is., Options are ⇒ (A) carburising, (B) normalising, (C) annealing, (D) tempering, (E) , Leave your comments or Download question paper. 2. Note: Annealing is a heat treatment process which alters the microstructure of a material to change its mechanical or electrical properties. It is an operating involving heating and cooling of metals to change the properties. 7. Machine Design Questions and Answers – Heat Treatment & Case Hardening of Steels ... Annealing involves heating the component to a temperature a) Slightly above the critical temperature ... To practice all areas of Machine Design, here is complete set of 1000+ Multiple Choice Questions and Answers. METALLURGY Multiple Choice Questions :-1. The heat treatment process used for softening hardened steel is (A) Carburising (B) Normalizing (C) Annealing (D) Tempering. 5. ANS : D. 2. This contains 30 Multiple Choice Questions for Mechanical Engineering Heat Treatment Of Metals And Elastomer - MCQ Test 2 (mcq) to study with solutions a complete question bank. d) Is more ductile and has a greater tendency to distort during heat treatment . Annealing • Annealing is the process for softening materials or to bring about required changes in properties, such as machinability, mechanical or electrical properties, or dimensional stability. Posted on : May 23, 2020 By Team Stuffworking. This contains 30 Multiple Choice Questions for Mechanical Engineering Heat Treatment Of Steels - 3 (mcq) to study with solutions a complete question bank. ____improves the cutting quality and gives excellent magnetic property in the steel. The solved questions answers in this Heat Treatment Of Steels - 3 quiz give you a good mix of easy questions and tough questions. The types of Heat Treatment: 1. Heat treating has evolved into a highly complex, precise process that improves characteristics of metal parts. a. Annealing b. Nitriding c. Tempering d. Heat treatment 9. The product from blast furnace is called (A) Cast Iron (B) Wrought Iron (C) Pig Iron (D) Steel. Cobalt 7. b) Is more ductile and has a less tendency to distort during heat treatment. Correct Answer. NH 3 = 1/2 N 2 + 3/2 H 2 …(8.52) . ... is produced by annealing process. process annealing. Softening. a. Cobalt b. Molybdenum c. Nickel d. Chromium 8. Annealing improves (A) Grain size (B) Mechanical properties (C) Electrical properties (D) All of above. c) Is less tough and has a less tendency to distort during heat treatment. improves wear resistance, cutting ability and toughness: refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties: improves cutting ability and reduces hardenability: gives ductility, toughness, tensile strength and anticorrosion properties: raises its … Hardness testing methods vary based on the material and heat treatment chosen. Once, this molecular nitrogen is produced, it cannot be absorbed at the steel surface (nascent nitrogen, N at is absorbed). Q3. A coarse grained steel Material Science MCQ 6. Solution Heat Treating and Annealing Quenches. a) Is less tough an has a greater tendency to distort during heat treatment. ANS : C. 3.
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