(c) 60 : 40 (a) electroplating BATU First Year Question Papers Summer 2018, Question Bank of DBATU B.Tech Examinations, Civil Engineering MCQ in PDF | DBATU Remedial Exam. Ans: c, 16. A specimen of aluminium metal when observed under microscope shows (d) improving machinability (a) aluminium (d) contents of alloying elements (e) copper. DuraJomin contains Ans: a, 97. My email id is – shivarajukm1212@gmail.com, Sir Ans: d, 39. Ans: a, 176. Ans: a, 126. Ans: b, 52. This page provides more than 10000 valuable Mechanical Engineering MCQs PDF topic wise. My mail-id is vikashkmr1920@gmail.com. (a) gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt (c) homogeneous Ans: c, 34. (A) Bessemer process (B) Open hearth process (C) Electric process (D) LD process 3) The co-ordination ... Read more Material Science MCQ Questions … (c) intermetallic compounds (c) highly resistant to corrosion (b) soft (e) copper. (a) aluminium in steel results in excessive grain growth Ans: b, 122. (a) hard 3. (e) increases toughness. Ans: c, 184. Carbon in iron is an example of (c) chromium alloys (b) refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties (e) increases hardness. (c) equal to 7 (d) zinc, sulphur, and chromium Lead is poured into the joint between two pipes. (e) none of the above. (c) body centred cubic a-iron and face centred cubic a-iron (d) dielectric Which of the following element results in presence of free graphite in C.I. SEMESTER V Mechanical Engineering MCQ's. (d) 10 : 90 2. (e) none of the above. (c) manganese Ans: e, 164. (e) none of the above. (b) low carbon steel (b) nickel, molybdenum Heavy duty leaf and coil spring* contain carbon of the following order (e) none of the above. Engineering Material MCQ PDF Download Page. (c) cold working (b) wear resistance is very good (d) elements like phosphorus, sulphur and silicon in varying quantities (e) 85-92% copper and rest zinc. (e) silver, lead, tin. (e) 15-22. (a) no graphite Ans: e, 71. (a) the points where no further change oc-curs (d) isotropic (c) one of the best known age and precipitation-hardening systems (b) is also known as chilled cast iron and is obtained by cooling rapidly. (a) 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe (C) wrought iron (d) 5 – 7% Ans: b, 62. (c) 0.3% (d) 1040 (e) sulphur, phosphorous and lead im¬prove machining properties of steel. (b) harden steel slightly (e) unpredictable behaviour. (b) sulphur, phosphorus, lead (b) 0.26% (e) brass. Encrypting your link and protect the link from viruses, malware, thief, etc! (e) extremely brittle. (a) relieve stresses Ans: b, 86. Vanadium in high speed steels (b) hot tempering (c) H.S.S. (a) room temperature (c) 7-10 Cast iron has Pick up the wrong statement Nickel and chromium in steel help in (c) 87% Sn, 4% Cu, 8% Sb, 1% Al Which of the following elements does not impart hardness to steel Ans: a, 133. (e) none of the above. (b) refined from cast iron (e) orthorhombic crystal. (c) hexagonal close-packed lattice Ans: b, 103. Engine Objective Questions (e) special steel. (b) in which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid (b) alloy steel (c) 1440°C (a) stages at which allotropic forms change (c) improves cutting ability and reduces hardenability (d) cast iron (c) heat treatment Engineering Materials MCQ question is the important chapter for a Mechanical Engineering and GATE students. (e) 70-75% copper and rest zinc and tin. Ans: e, 114. (e) (a) and (c) above. (e) none of the above. (e) mild steel. (a) 600 VPN (c) method of fabrication (c) 0.8% (b) vitrified clay (a) 0.05 to 0.20% (c) which is not attacked by phosphorous (b) exists in several crystal forms at different temperatures Admiralty gun metal contains Inconel is an alloy of (d) ferrite and iron graphite (a) 50 : 50 Engineering Materials - Mechanical Engineering (MCQ) questions and answers. Chilled cast iron has Ans: a, 127. (c) nickel (c) 1489°C (e) none of the above. Cemented carbide tools are not found to be suitable for cutting Strength of Materials Questions And Answers Objective Type for Mechanical Engineering is given below. (e) zinc. (b) is also known as chilled cast iron am is obtained by cooling rapidly. (d) volumetric defect (e) none of the above. Ans: b, 68. need previous year questions paper for delhi metro rail coopeartion, If you have pdf of all subject in electrical engineering please mail me at- jeevanshinde7755@gmail.com. (a) point defect (a) 70% copper and 30% zinc (b) 5-7 (d) cutting tool material Which of the following alloys does not contain tin (d) all of the above (e) silver and gold. The elastic stress strain behaviour of rubber is Ans: d, 33. (e) flame hardening. (c) wear resistance (e) relieving of stresses throughout a component. Ans: c, 179. (d) the casting unsound Ans: d, 37. (e) none of the above. (c) nickel, copper and zinc (e) lubricants. Ans: d, 101. (e) malleability. (a) 70% copper and 30% zinc Graphite is in the nodular or spheroidal form and is well dispersed throughout the material Ans: c, 128. An important property of high silicon (12 – 18%) cast iron is the high (b)TO16 Pig iron is the name given to Malleable cast iron Ans: d, 129. Ans: b, 88. Mechanical Engineering MCQ questions and answers especially for the Mechanical Engineer and who preparing for GATE Exam. Mechanical Engineering Mcqs for Preparation of Job Test and interview, freshers, Students, competitive exams etc. (b) forged steel contains the following element as principal alloying element Materials after cold working are subjected to following process to relieve stresses (c) 85-92% copper and rest tin with little lead and nickel (b) ductility (e) orthorhombic crystal. Ans: b, 146. (d) inducing hardness by continuous process (b) manganese in steel induces hardness (e) none of the above. (b) reduces the grain size (c) improve mechanical properties (b) less than 7 (c) ductile (e) none of the above. Ans: a, 25. (a) 0.5 to 1% (b) A1203 Which of the following alloys does not have copper as one of the constituents (d) iron, zinc and bismuth (a) iron (c) alloy of tin, lead and cadmium A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as (a) 70% copper and 30% zinc (d) improving machinability (b) 90% copper and 10% tin Stress relaxation is- the phenomenon Ans: b, 194. Recrystallization temperature is one Ans: b, 56. Drop forging dies contain carbon of the order of (e) density throughout. (c) ability to undergo large permanent deformations in tension Ans: a, 78. (e) none of the above. (e) making corrosion resistant steel. Ans: a, 167. (c) vanadium (a) improves wear resistance, cutting ability and toughness (e) adding copper and carbon. (b) silver, tin, nickel (b) 90% copper and 10% tin (c) ability of hold protective coating (d) nickel and copper (c) require least cutting force (d) 0.6% Machining properties of steel are improved by adding Ans: b, 125. (d) has its atoms distributed in a random pattern (b) pearlite (c) neutral (c) flakes (b) pig iron (a) copper and tin Material Science Questions Answers MCQ – Mechanical Engineering 1) An example of amorphous material is a) brass b) glass c) silver d) lead 2)Which of the following steel making process is being adopted at Rourkela (in India) Steel Plant? Ans: a, 116. (d) stress reduces on increasing load (c) an alloy of iron and carbon with varying quantities of phosphorus and sulphur (d) silicon Can u send me the mechanical qsns with answrs in pdf format please…….. (e) above 1539°C. (b) near melting point (c) is produced by annealing process. Home; ENGINEERING DRAWING; Engineering; MOTOR VEHICLE ACT 1988; CENTRAL MOTOR VEHICLE RULE 1989; AUTOMOBILE MCQ; COMPUTER SCIENCE; Download This Template; Home / Unlabelled / MATERIAL SCIENCE 240 MCQ PDF DOWNLOAD. Which are very useful for all kind of GATE, ESE, SSC, RRB, State and Central level civil services exams. By severely deforming a metal in a particular direction it becomes (b) physical change (a) copper (c) tungsten (b) 40 : 30 : 20 : 10 An example of amorphous material is Click on the Subject Name to Brows the Mechanical MCQ of that subjects. (d) wrought iron Material … (b) vanadium (c) 2.5% phosphorous (c) vanadium, aluminium (d) 20 : 80 (c) allotropic change Pick up the wrong statement (e) german silver. Ans: b, 111. Ans: d, 174. (e) high carbon steel. (b) fatigue Ans: d, 195. Mechanical Engineering. (e) lead (e) surface finish. (e) anisotropic. (a) %age of carbon (a) substitutional solid solution engine. 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