Pick up the polymineralic rock from the following: 5. Polymerization helps to improve the property of strength rigidity elasticity all of these. Iron is a lustrous, malleable, ductile, silver-gray metal. Since carbon combines with wrought iron and has its surface covered with blisters, therefore, the steel produced by this process is known as blister steel. STEEL. 1.0% C. 1.5% D. 2%. Q 4. Discuss in Forum . 0 0. Building Materials MCQ question is the important chapter for a Civil Engineering and GATE students. Pick up the polymineralic rock from the following: Granite Pure gypsum Magnesite Quartz sand. Iron is the name given to pure ferrite Fe, as well as to fused mixtures of this ferrite with large amount of carbon (may be 1.8%), these mixtures are known as pig iron and cast iron. (4) The carboxyhaemoglobin (haemoglobin bound to CO) is less stable than oxyhaemoglobin. Based on Carbon Content it can be classified into 1. 1.0% C. 1.5% D. 2%. It can easily forged and welded. View Answer. It is a tough, malleable and ductile material. The steel forms an intermediate stage between cast-iron and wrought-iron. Wrought iron is manufactured from pig iron by A. refining B. pudding C. shingling D. all the above. 1 hour ago. Ask question + 100. PIG Iron : Pig iron is the crude and impure form of iron. 273 The variety of pig iron used for manufacture of wrought iron, is (A) Bessemer pig (B) Grey or foundry pig (C) White forge pig (D) Mottled pig Answer: Option C Question No. (1) Pig iron contains about 4% carbon and many impurities in smaller amount (e.g., S, P, Si, Mn). Explanation: No answer description available for this question. how many moles of silver are in the wire? Discuss in Forum . Basically the iron comes from the mines or rocks in the form of ores and separated from the ores. Q 3. Its melting point ut 1400°C. Page-13 section-5 Answer: Option E 3. Steel is an alloy of iron and carbon with content upto a maximum of 1.5%. The carbon content is in the form of iron … Wrought iron contains carbon upto A.0.15% B. Answer: Option A 4. It can be moulded into variety o f shapes (2) Wrought iron is the purest form o f carbon A. Wrought iron contains carbon upto A.0.15% B. Q 5. Pick up the polymineralic rock from the following: A. Quartz sand B. Wrought iron contains carbon upto [A]. Wrought iron produced by puddling process contains carbon content less than 0.03%, silicon is about 13%, sulphur is less than 0.02%, phosphorus is about 0.18%, and manganese is … Low Carbon Steels (Carbon upto 0.30%): Workspace. For thin structures subjected to wetting and drying, the water cement ratio should be 0.45 Steel-alloy of iron and carbon. Join. Wrought iron contains carbon upto A. The cast iron contains carbon from 2 to 4 percent. 196. Wrought iron is the purest iron which contains 99.5% iron but may contain upto 99.9% iron. Forge pig may be converted to wrought iron by A. rolling Composition– Wrought iron is the purest form of iron. Answer Save. Other elements such as Silicon, Sulphur, Phosphorus and Manganese are also added to improve the various qualities of steels. Wrought iron contains carbon upto? The pure metal (Pure Iron s) is very reactive chemically and rapidly corrodes or rusts in moist air or at elevated temperatures. Relevance. 0.25% B. Raju. 25%; 0%; 5%; 2%. The name Iron can refer to pure form, but due to history is also the name commonly used to refer to element iron with large amounts of carbon. Mild steel - 0.05 % - 0.30 % 2. Pick up the polymineralic rock from the following: A. Quartz sand B. 2. 22. D. contain alcohol as thinner E. all the above. Wrought iron ismalleable and ductile. a hydrogen atom has an atomic mass of 1 amu? It is a semi-fused mass of iron with fibrous slag inclusions (up to 2% by weight), which gives it a "grain" resembling wood that is visible when it is etched or bent to the point of failure. For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55 The steel made by this process is cement steel because ferrite in the wrought iron is converted into cementite (i.e. (1) It is produced due to incomplete combustion. The steel used in RCC work is – mild steel. In steel, the carbon content varies from anything below 0.25% to 1.50% maximum. 1.0% [C]. Crucible process. The members in the iron family are classified on the basis of carbon content present. Carbon content is upto 1.5%. Wrought iron contains carbon upto. 3. Answer is 0.25%. Answer: 4. Trending questions. Wrought iron is an iron alloy with a very low carbon content (less than 0.08%) in contrast to that of cast iron (2.1% to 4%). Pick up the correct statement from the following: 24. • It is manufactured in a furnace called blast furnace. • Cast iron • Wrought iron • Carbon steel • High Speed Steel Pig Iron • Impure iron extracted from iron ores is known as pig iron. 0.25% [B]. View Answer. 0.25%: B. 23. Answer: 5. Wrought iron contains carbon upto A. The steel used for the manufacture of rails is – Bessemer steel 195. View Answer. Pick up the correct statement from the following: A. Which of the following is not correct about carbon monoxide ? Wrought iron contains carbon upto 0.25% 1.0% 1.5% 2%. The carbon content is about 0.02%. contain alcohol as thinner E. all the above. Wrought iron contains carbon upto. Discuss in Forum . 0.25% B. Pig iron contains impurities like, carbon, silicon, phosphorus, and manganese. Q 3. 3. contain alcohol as thinner; all the above. Used in chains, Crain hooks, railway couplings, water and steam pipes. • It is the basic raw material for the manufacture of cast iron, wrought iron and steel. Chemistry Problem? 2%. View Answer. Q 5. For thin structures subjected to wetting and drying, the water cement ratio should be 0.45 B. 196. • It contains 4 to 5% of carbon. Pick up the correct statement from the following: A. contain alcohol as thinner; all the above. Wrought iron is the iron used by the forgerons; in such, being pure, it contains no carbon - carbon is a hardener - and so, wrought iron can also be called “soft” iron, (in French, at least). 4. Ans. iron carbide). 1.0%: C. 1.5%: D. 2%. CARBON STEELS Is an alloy of Iron and Carbon Contains 0.1 % to 1.5 % of Carbon. Wrought iron is manufactured from pig iron by A. refining B. pudding C. shingling D. all the above. The amount of carbon present in steel is nearly intermediate between that contained in cast and wrought iron. This is due to the fact that carbon if in excess of 1.5%, does not combine with iron and it is present as free graphite. Answer: Option E 3. Pick up the polymineralic rock from the following: 5. The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout. High carbon Steel 0.70 % - 1.5 % 4. It is the basic material from which cast iron, wrought iron and steels are produced. Answer: Option D 5. Get answers by asking now. Pick up the polymineralic rock from the following: Quartz sand; Pure gypsum; Magnesite; Granite; None of these. In pig iron carbon content is 3.5-4.5%, wrought iron contains .05-.2% carbon… It is tough malleable and ductile. Wrought Iron: It can be readily welded by any of the commonly used welding processes. Wrought iron contains carbon upto (A) 0.25 % (B) 1.0 % (C) 1.5 % (D) 2 % Answer: Option A Question No. Wrought iron is also known as Pure Iron contains only a few tenths of a percent of carbon, is tough, less fusible, malleable, and usually has a “fibrous” structure.. Workspace Report. Primarily pig iron is produced from the iron ore in the blast furnace from which cast iron, wrought iron … Cast Iron is the most impure form of iron and contains the highest percentage of carbon from 2.5 to 5 percent and about 2 percent of other impurities like Si, P, Mn and S. Wrought Iron is the purest form of iron. Ferrous alloys are that contain iron as the base metal. Iron Ore : The following are common varieties of iron ore : View Answer 78 -28 Q4. Discuss in Forum . Wrought iron contains carbon upto 4. 1.03i C.1.50% D. 2%. (2) Iron (3) Copper (4) Calcium 3 . a piece of silver wire has the mass of 53.91 grams. Softer variety of steel may be obtained by – Bessemer process. Wrought iron is fairly pure iron containing glassy inclusions. … The various steels contain carbon from 0.1 to 1.5%. Pick up the correct statement from the following: A. Wrought iron thus formed contains about 0.2 – 0.5% carbon and traces of P and Si in the form of slag. Organic Chemistry help?!?!?!? Answer: Option A. 2. MAH CET 2020 Percentile Predictor 16 minutes ago. It can be easily forged or welded. Still have questions? Learn Building Materials MCQ questions & answers are available for a Civil Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Forge pig may be converted to wrought iron by A. rolling Iron and Steel making history. Wrought iron contains carbon upto. 1 Answer. Answer: 1. (2) It forms carboxyhaemoglobin. It is a ferrous material and more corrosion resistant than steel. Pure gypsum C. Magnesite D. Granite E. None of these. Wrought iron contains carbon upto. Pure gypsum C. Magnesite D. Granite E. None of these. Question is ⇒ Wrought iron contains carbon upto., Options are ⇒ (A) 0.25%, (B) 1.0%, (C) 1.5%, (D) 2%., (E) , Leave your comments or Download question paper. 195. Wrought iron is tough, malleable, ductile, corrosion resistant, and easily welded. 1.03i C.1.50% D. 2%. Wrought iron contains carbon upto – pudding. Wrought iron contains carbon upto 4. MAH CET Participating Institutes 2020 16 minutes ago. It contains the lowest percentage of carbon 0.1 to 0.25% and 0.35 other impurities. Trending questions. The carbon present in the form of iron carbide, because of its ability to increase the hardness and strength of the steel. Wrought iron-it is the purest iron which contains 99.5% iron. For high grade instruments the steel preferred to is – Cast Steel. Answer: 4. Pick up the correct statement from the following: A. Answer: 1. Answer: Option D 5. 34 Views Trending Articles/News MAH CET Answer Key 2020 16 minutes ago. Q 4. Medium Carbon steel 0.30 % - 0.70 %. Pick up the polymineralic rock from the following: Quartz sand; Pure gypsum; Magnesite; Granite; None of these. It is the first form of iron produced directly from ore. It can not stand sudden and excessive shocks. Wrought iron contains carbon upto? Answer: 5. Join Yahoo Answers and get 100 points today. Get Syllabi With Exam Pattern: BARC Syllabus. Report errors. 25%; 0%; 5%; 2%. In wrought-iron, The carbon content does not exceed 0.15%. The slight amount of slag present in the wrought iron has a fluxing action and protects the metal during heating, thereby producing good results. (3) It reduces oxygen carrying ability of blood. Wrought iron contains carbon up to – 0.15%. Pig iron and cast iron contain upto 4 percent carbon by weight. It contains less than 0.1% carbon. 1.5% [D]. Answer: Option A 4. In moist air or at elevated temperatures steel forms an intermediate stage between cast-iron and.! 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