{"id":8113,"date":"2024-04-15T02:55:19","date_gmt":"2024-04-15T02:55:19","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=8113"},"modified":"2024-04-15T02:55:19","modified_gmt":"2024-04-15T02:55:19","slug":"two-important-constituents-in-the-composition-of-steel-used-for-rail-are-a-carbon-and-silicon-b-manganese-and-phosphorous-c-carbon-and-manganese-d-carbon-and-sulphur","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/two-important-constituents-in-the-composition-of-steel-used-for-rail-are-a-carbon-and-silicon-b-manganese-and-phosphorous-c-carbon-and-manganese-d-carbon-and-sulphur\/","title":{"rendered":"Two important constituents in the composition of steel used for rail are A. Carbon and silicon B. Manganese and phosphorous C. Carbon and manganese D. Carbon and sulphur"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Carbon and silicon&#8221; option2=&#8221;Manganese and phosphorous&#8221; option3=&#8221;Carbon and manganese&#8221; option4=&#8221;Carbon and sulphur&#8221; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is C. Carbon and manganese.<\/p>\n<p>Carbon is the main alloying element in steel, and it is responsible for the strength and hardness of the material. Manganese is also an important alloying element, and it helps to improve the toughness and wear resistance of steel.<\/p>\n<p>Silicon is not an important constituent in the composition of steel used for rail. It is a relatively weak element, and it can make the steel more brittle. Phosphorous is also not an important constituent in the composition of steel used for rail. It is a non-metallic element that can cause embrittlement in steel. Sulphur is also not an important constituent in the composition of steel used for rail. It is a non-metallic element that can cause hot shortness in steel.<\/p>\n<p>Here are some additional details about the importance of carbon and manganese in steel:<\/p>\n<ul>\n<li>Carbon is the main alloying element in steel, and it is responsible for the strength and hardness of the material. The amount of carbon in steel is typically between 0.02% and 2.11%. The higher the carbon content, the stronger and harder the steel will be. However, too much carbon can make the steel brittle.<\/li>\n<li>Manganese is also an important alloying element, and it helps to improve the toughness and wear resistance of steel. The amount of manganese in steel is typically between 0.5% and 1.5%. Manganese also helps to prevent the formation of cracks in steel.<\/li>\n<\/ul>\n<p>I hope this information is helpful!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Carbon and silicon&#8221; option2=&#8221;Manganese and phosphorous&#8221; option3=&#8221;Carbon and manganese&#8221; option4=&#8221;Carbon and sulphur&#8221; correct=&#8221;option3&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[653],"tags":[],"class_list":["post-8113","post","type-post","status-publish","format-standard","hentry","category-railway-engineering","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Two important constituents in the composition of steel used for rail are A. Carbon and silicon B. Manganese and phosphorous C. Carbon and manganese D. Carbon and sulphur<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/two-important-constituents-in-the-composition-of-steel-used-for-rail-are-a-carbon-and-silicon-b-manganese-and-phosphorous-c-carbon-and-manganese-d-carbon-and-sulphur\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Two important constituents in the composition of steel used for rail are A. Carbon and silicon B. Manganese and phosphorous C. Carbon and manganese D. Carbon and sulphur\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;Carbon and silicon&#8221; option2=&#8221;Manganese and phosphorous&#8221; option3=&#8221;Carbon and manganese&#8221; option4=&#8221;Carbon and sulphur&#8221; correct=&#8221;option3&#8243;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/two-important-constituents-in-the-composition-of-steel-used-for-rail-are-a-carbon-and-silicon-b-manganese-and-phosphorous-c-carbon-and-manganese-d-carbon-and-sulphur\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-15T02:55:19+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Two important constituents in the composition of steel used for rail are A. Carbon and silicon B. Manganese and phosphorous C. Carbon and manganese D. Carbon and sulphur","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/two-important-constituents-in-the-composition-of-steel-used-for-rail-are-a-carbon-and-silicon-b-manganese-and-phosphorous-c-carbon-and-manganese-d-carbon-and-sulphur\/","og_locale":"en_US","og_type":"article","og_title":"Two important constituents in the composition of steel used for rail are A. Carbon and silicon B. Manganese and phosphorous C. Carbon and manganese D. 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