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(a) stainless steel (b) ductility (b) product of blast furnace made by reduction of iron ore (d) isotropic Stress relaxation is- the phenomenon Ans: b, 68. (d) 0.55 to 1.0% (c) highly resistant to corrosion (a) austenite Ans: b, 120. (b) tin and copper (d) all of the above Nodular iron has (c) 85-92% copper and rest tin with little lead and nickel (b) nickel, copper (d) nickel, lead and tin An engineer’s hammer is made of (a) contains 1.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron My email id is – shivarajukm1212@gmail.com, Sir (b) martensite (c) improve toughness (e) none of the above. (d) inducing hardness by continuous process (d) soften material (c) hot hardness (a) gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt Cast iron is characterised by minimum of following %age of carbon (b) duralumin Ans: d, 152. (a) elastic properties in all directions (c) wrought iron Which is false statement about case hardening. Ans: b, 61. MCQ Practice Tests. (b) 90% copper and 10% tin (d) cementite (a) hard’ Free cutting steels Ans: d, 139. This page provides more than 10000 valuable Mechanical Engineering MCQs PDF topic wise. (a) hysteresis (a) grey cast iron, low carbon steel, wrought iron (c) cementite (b) tin and lead (e) orthorhombic crystal. (e) stainless steel. (b) RC 48 1. In this page you can learn various important railway engineering multiple choice questions and answers, railway engineering objective question answer,railway engineering interview question papers,railway engineering for civil etc. (a) face-centred cubic lattice (e) increases the fluidity. It is almost unmachinable (d) by crushing into thousands of pieces (c) equal to 7 In compression, a prism of brittle material will break Ans: c, 178. Which are very useful for all kind of GATE, ESE, SSC, RRB, State and Central level civil services exams. Dear Readers, Welcome to Strength of Materials multiple choice questions and answers with explanation. 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Points of arrest for iron correspond to (d) unpredictable (d) the casting unsound (d) creep strength limits its use to fairly low temperatures (e) brass. mail id :arunpandiyan51995@gmail.com, could you send me the questions pdf related to Materials and Metallurgical Engineering to the following e mail id? An example of amorphous material is (a) the points where no further change oc-curs (e) silver. (e) 90 : 10. (b) alloy steel (e) inelasticity. ... My friend if you preparing exams this the article provides you with Technical and Non-Technical Section Mechanical Study Material with PDF Download. Ans: c, 41. (e) 90% copper and 10% zinc. (b) 0.3 to 0.6% (e) none of the above. (d) promotes retention of austenite (a) acidic (d) 1040 (d) silver and chromium (a) 50 : 50 Which of the following alloys does not contain tin (b) graphite (d) pH value has nothing to do with neutral solution (d) cubic structure (c) copper and iron (a) cementite Steam Boilers, Engines, Nozzles and Turbines PART 1 . 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(a) substitutional solution (c) zinc, tin, lead The following types of materials are usually the most ductile (b) 0.25 to 0.5% (b) 92.5% aluminium, 40% copper, 2% nickel, and 1.5% Mg (b) harden steel slightly Which of the following is used for bearing liner (b) monel metal (a) paramagnetic (b) nickel, molybdenum If a refractory contains high content of silicon, it means refractory is (c) forged steel SEMESTER V Mechanical Engineering MCQ's. Ans: c, 10. (a) 87.75% Sn, 4% Cu, 8% Sb, 0.25% Bi Ans: d, 79. (b) its elastic limit close to the ultimate breaking strength (d) 0.8% (a) copper, zinc and iron (e) tin, copper and lead. (b) nickel and molybdenum The alloy used is (e) carbon-chrome steel. Subject wise Mechanical Engineering MCQ Question Answers Internal Combustion Engine Theory of Machines Power Plant Engineering Fluid Mechanics Refrigeration & Air Conditioning Strength of Materials Heat & Mass Transfer Industrial Engineering Production Engineering Thermodynamics Machine Design Material Science I hope above all MCQ mechanical study material will help you crack your engineering exams. (c) aluminium and zinc (b) brittleness Ans: c, 48. (c) nickel (b) face centred cubic (b) free carbon (e) hardening core. (b) chromium (a) contains l.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron (b) sulphur (b) improvement of corrosion resistance (a) 50 : 50 (c) ductile (b) perpendicular to lines of slag distribution Large forgings, crank shafts, axles normally contain carbon up to (c) intermetallic compounds (a) 50 : 20 : 20 : 10 crystal structure Chilled cast iron has (d) at which crystals grow bigger in size Addition of silicon to aluminium results in I is soft, tough and easily machinec metal (c) RC 57 (e) orthorhombic crystal. (a) 70% copper and 30% zinc (b) 1601°C The correct composition of Babbit metal is (a) austenite (b) cast iron pipes” (e) grey cast iron, wrought iron, low carbon steel. (c) an alloy of iron and carbon with varying quantities of phosphorus and sulphur (e) 1.5 to 2.5%. Ans: a, 163. (b) low melting point (c) 0.6 to 0.8% Ans: a, 45. (c) Hastelloy (a) hot working Remedial exam is conducted by dbatu university after every semester exam for the students failing in regular end sem exam. (a) chromium and nickel Ans: b, 12. (e) none of the above. (d) improving machinability German silver is an alloy of (c) homogeneous (a) improves wear resistance, cuttinability and toughness Melting point of iron is Ans: a, 46. (b) hard In this page you can learn various important estimation and costing in civil engineering multiple choice questions and answers,sloved estimation and costing in civil engineering question papers, important estimation and costing interview question papers,objective questions of electrical estimating and costing etc. (e) none of the above. (a) zinc (e) none of the above. 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Basic constituents of Monel metal are Preheating is essential in welding It is almost unmachinable Wrought iron is (b) physical change (b) nickel ME8595 Thermal Engineering- II Download MCQ. (e) 2000 VPN. Engineering Mechanics PART 1 . (d) cubic structure (c) 1022 (b) pearlite Engineering Materials - Mechanical Engineering (MCQ) questions and answers. (a) amount of carbon it contains (c) medium carbon steel (e) 1.7%. (c) providing high strength at elevated temperatures (c) silicon Ans: b, 119. (b) less than 7 Ans: a, 140. (e) density throughout. (b) it brittle Permalloy is a (d) zinc, sulphur, and chromium (e) 0.8%. which is easy to understand and improve your skill. The tensile strength of wrought iron is maximum (d) monel metal Ans: d, 37. (a) allotropic change Carbon in iron is an example of The hardness of steel primarily depends on (a) tin, antimony, copper (a) aluminium, copper etc. (a) 0.025% (e) superhardening. (e) none of the above. 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(c) 87% Sn, 4% Cu, 8% Sb, 1% Al (b) is also known as chilled cast iron and is obtained by cooling rapidly. ‘Killed steels’ are those steels (a) aluminium in steel results in excessive grain growth (d) 0.8 to 1.5% (b) manganese in steel induces hardness Engineering Material MCQ PDF Download Page. (b) gold (a) 0.05% Mechanical Engineering. (a) point defect Ans: a, 176. Ans: a, 113. (a) 63 to 67% nickel and 30% copper (b) hot tempering (b) 92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg (e) mild steel. (e) uniform strength in all directions. (c) hexagonal close-packed lattice (c) it hard Babbit metal is a (c) 0.3% (a) 0.05 to 0.20% Ans: a, 186. (e) pearlite and ferrite. (c) aluminium (e) shape of carbides and their distribution in iron. (d) solidus change (b) improve ductility Ans: c, 2. Ans: c, 77. (b)TO16 (b) 40 : 30 : 20 : 10 (c) forms very hard carbides and thus in-creases wear resistance Ans: c, 34. (d) alloy steel (e) none of the above. (c) in which deformation tends to loosen the joint and produces a stress reduced Argentite is the principal ore or raw material for Ans: d, 84. Home » ENGINEERING MATERIALS Questions » 300+ TOP ENGINEERING Materials Multiple Choice Questions and Answers, 1. Ans: d, 177. (e) nickel, lead. (d) tungsten, molybdenum, vanadium, chromium Ans: b, 144. Ans: e, 114. (e) first decrease and then increase. (d) fluidity (e) 70% copper and 30% tin. (a) silver, copper, zinc (C) wrought iron (b) 0.26% Timed Mock Tests. (d) tough (e) 85-92% copper and rest zinc. (c) flakes (d) white carbon (b) below 1% (c) lead, tin, aluminium (a) mild steel (d) iron scrap and zinc This the post provides estimate 1000++ MCQ Mechanical Engineering question which is helping all world students for their competitive exam’s preparations. Ans: a, 138. (c) nodular form (e) copper. 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Phosphor bronze contains Which is false statement about properties of aluminium (b) B.C.C. (d) method of manufacture (d) elinvar (c) is produced by annealing process. (c) copper, nickel and antimony Taps, dies and drills contain carbon Maximum percentage of carbon in austenite is (e) none of the above. (d) 5% phosphorous (e) none of the above. (a) raw material for blast furnace Set of model questions for dbatu remedial exam for first year, second year and third year B.Tech Mechanical Engineering have been published in pdf format. Ans: b, 51. Ans: a, 193. (b) refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Surveying tapes are made of a material having low coefficient of expansion and enough strength. Corrosion resistance of steel is increased by adding (b) free carbon Ans: e, 83. Corrosion resistance of steel is increased by addition of (e) nodular aggregates of graphite. (e) carbon. Question no 164 ans is wrong, phosphor bronze contains up to 1% phosphorus, Please send me the pdf of MCQ with ans of Metallurgy & Material engineering in my email:- safety_dme@yahoo.co.in or debumu78@gmail.com. Ans: e, 50. (a) hot hardness (d) all of the above Paramagnetic alpha iron changes to gamma iron at (d) cubic structure (a) silver Mechanical Engineering Mcqs for Preparation of Job Test and interview, freshers, Students, competitive exams etc. Which is false statement about normalizing. (a) body centred cubic (d) 2% GATE, IES, SSC JE, RRB JE, CSIR, Previous Solved Paper, Exams Syllabus, Handwritten notes, Study Material Pdf Download, Exam Preparation strategy. (e) cast iron. 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(b) 30 : 70 (c) remain constant (a) ferrite and cementite (a) 63 to 67% nickel and 30% copper Process of austempering results in (c) remain same (a) contains 1.7 to 3.5% carbon in free state and is obtained by the slow cooling of molten cast iron sir,pls mail me all sub questions&answer in pdf..am job seacher ,i hope that you are helping me sir. Cyaniding is the process of (e) iron scrap. (b) soft Ans: b, 123. (c) between 1400°C and 1539°C Ans: a, 78. (c) 1489°C (d) cast iron (c) improve machining characteristic (a) alpha iron, beta iron and gamma iron Ans: b, 125. (a) 600 VPN (a) 70% copper and 30% zinc (b) iron, nickel and copper (e) making corrosion resistant steel. (e) brass. (d) 70-75% copper and rest tin (d) wrought iron (b) reacting steel surface with cyanide salts (a) hard These type of Strength of Materials (SOM) Multiple Choice Questions are asked in various Competitive Exams like Railway, SAIL, BHEL, HAL and other exams. 3. 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