{"id":91747,"date":"2025-06-01T11:04:54","date_gmt":"2025-06-01T11:04:54","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91747"},"modified":"2025-06-01T11:04:54","modified_gmt":"2025-06-01T11:04:54","slug":"in-rural-road-construction-the-use-of-which-of-the-following-is-prefe","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/","title":{"rendered":"In rural road construction, the use of which of the following is prefe"},"content":{"rendered":"<p>In rural road construction, the use of which of the following is preferred for ensuring environmental sustainability or to reduce carbon footprint ?<\/p>\n<ul>\n<li>1. Copper slag<\/li>\n<li>2. Cold mix asphalt technology<\/li>\n<li>3. Geotextiles<\/li>\n<li>4. Hot mix asphalt technology<\/li>\n<li>5. Portland cement<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below :<\/p>\n<p>[amp_mcq option1=&#8221;1, 2 and 3&#8243; option2=&#8221;2, 3 and 4&#8243; option3=&#8221;4 and 5 only&#8221; option4=&#8221;1 and 5 only&#8221; correct=&#8221;option1&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC IAS &#8211; 2020<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-ias-2020.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-ias-2020\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nStatement 1 is correct: Copper slag is an industrial waste product that can be used as a substitute for natural aggregate in road construction. Using waste materials contributes to environmental sustainability by reducing the need for virgin resources and addressing waste disposal.<br \/>\nStatement 2 is correct: Cold mix asphalt technology uses asphalt emulsion or foamed asphalt at lower temperatures compared to hot mix asphalt. This significantly reduces energy consumption and greenhouse gas emissions during production and laying, making it environmentally preferable.<br \/>\nStatement 3 is correct: Geotextiles are used in road construction for separation, filtration, reinforcement, and drainage. They can improve the structural integrity and lifespan of roads, potentially allowing for thinner pavement layers and reducing the overall material requirement, contributing to resource efficiency.<br \/>\nStatement 4 is incorrect: Hot mix asphalt technology requires heating asphalt binder and aggregates to high temperatures (typically 150-190\u00b0C), leading to high energy consumption and emissions, making it less environmentally sustainable compared to cold mix.<br \/>\nStatement 5 is incorrect: The production of Portland cement is a highly energy-intensive process that releases significant amounts of CO2. While cement is a necessary binder in some road layers or concrete roads, its extensive use, especially compared to alternative binders or technologies, can increase the carbon footprint. Preferences for sustainability often involve reducing cement use or using supplementary cementitious materials.<br \/>\nTherefore, options 1, 2, and 3 are preferred for ensuring environmental sustainability or reducing carbon footprint in rural road construction.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nEnvironmentally sustainable practices in road construction involve utilizing waste materials, employing low-energy technologies like cold mix asphalt, and using materials like geotextiles to enhance durability and reduce material use.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nOther sustainable practices in road construction include using recycled concrete aggregate, fly ash, plastic waste, and adopting perpetual pavement design concepts to increase road lifespan and reduce reconstruction needs.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>In rural road construction, the use of which of the following is preferred for ensuring environmental sustainability or to reduce carbon footprint ? 1. Copper slag 2. Cold mix asphalt technology 3. Geotextiles 4. Hot mix asphalt technology 5. Portland cement Select the correct answer using the code given below : [amp_mcq option1=&#8221;1, 2 and &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"In rural road construction, the use of which of the following is prefe\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/#more-91747\">Detailed Solution<span class=\"screen-reader-text\">In rural road construction, the use of which of the following is prefe<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1092],"tags":[1288,1136,1246],"class_list":["post-91747","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1288","tag-environment-and-ecology","tag-environment-and-sustainable-development","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>In rural road construction, the use of which of the following is prefe<\/title>\n<meta name=\"description\" content=\"Statement 1 is correct: Copper slag is an industrial waste product that can be used as a substitute for natural aggregate in road construction. Using waste materials contributes to environmental sustainability by reducing the need for virgin resources and addressing waste disposal. Statement 2 is correct: Cold mix asphalt technology uses asphalt emulsion or foamed asphalt at lower temperatures compared to hot mix asphalt. This significantly reduces energy consumption and greenhouse gas emissions during production and laying, making it environmentally preferable. Statement 3 is correct: Geotextiles are used in road construction for separation, filtration, reinforcement, and drainage. They can improve the structural integrity and lifespan of roads, potentially allowing for thinner pavement layers and reducing the overall material requirement, contributing to resource efficiency. Statement 4 is incorrect: Hot mix asphalt technology requires heating asphalt binder and aggregates to high temperatures (typically 150-190\u00b0C), leading to high energy consumption and emissions, making it less environmentally sustainable compared to cold mix. Statement 5 is incorrect: The production of Portland cement is a highly energy-intensive process that releases significant amounts of CO2. While cement is a necessary binder in some road layers or concrete roads, its extensive use, especially compared to alternative binders or technologies, can increase the carbon footprint. Preferences for sustainability often involve reducing cement use or using supplementary cementitious materials. Therefore, options 1, 2, and 3 are preferred for ensuring environmental sustainability or reducing carbon footprint in rural road construction. Environmentally sustainable practices in road construction involve utilizing waste materials, employing low-energy technologies like cold mix asphalt, and using materials like geotextiles to enhance durability and reduce material use.\" \/>\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\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"In rural road construction, the use of which of the following is prefe\" \/>\n<meta property=\"og:description\" content=\"Statement 1 is correct: Copper slag is an industrial waste product that can be used as a substitute for natural aggregate in road construction. Using waste materials contributes to environmental sustainability by reducing the need for virgin resources and addressing waste disposal. Statement 2 is correct: Cold mix asphalt technology uses asphalt emulsion or foamed asphalt at lower temperatures compared to hot mix asphalt. This significantly reduces energy consumption and greenhouse gas emissions during production and laying, making it environmentally preferable. Statement 3 is correct: Geotextiles are used in road construction for separation, filtration, reinforcement, and drainage. They can improve the structural integrity and lifespan of roads, potentially allowing for thinner pavement layers and reducing the overall material requirement, contributing to resource efficiency. Statement 4 is incorrect: Hot mix asphalt technology requires heating asphalt binder and aggregates to high temperatures (typically 150-190\u00b0C), leading to high energy consumption and emissions, making it less environmentally sustainable compared to cold mix. Statement 5 is incorrect: The production of Portland cement is a highly energy-intensive process that releases significant amounts of CO2. While cement is a necessary binder in some road layers or concrete roads, its extensive use, especially compared to alternative binders or technologies, can increase the carbon footprint. Preferences for sustainability often involve reducing cement use or using supplementary cementitious materials. Therefore, options 1, 2, and 3 are preferred for ensuring environmental sustainability or reducing carbon footprint in rural road construction. Environmentally sustainable practices in road construction involve utilizing waste materials, employing low-energy technologies like cold mix asphalt, and using materials like geotextiles to enhance durability and reduce material use.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:04:54+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=\"2 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"In rural road construction, the use of which of the following is prefe","description":"Statement 1 is correct: Copper slag is an industrial waste product that can be used as a substitute for natural aggregate in road construction. Using waste materials contributes to environmental sustainability by reducing the need for virgin resources and addressing waste disposal. Statement 2 is correct: Cold mix asphalt technology uses asphalt emulsion or foamed asphalt at lower temperatures compared to hot mix asphalt. This significantly reduces energy consumption and greenhouse gas emissions during production and laying, making it environmentally preferable. Statement 3 is correct: Geotextiles are used in road construction for separation, filtration, reinforcement, and drainage. They can improve the structural integrity and lifespan of roads, potentially allowing for thinner pavement layers and reducing the overall material requirement, contributing to resource efficiency. Statement 4 is incorrect: Hot mix asphalt technology requires heating asphalt binder and aggregates to high temperatures (typically 150-190\u00b0C), leading to high energy consumption and emissions, making it less environmentally sustainable compared to cold mix. Statement 5 is incorrect: The production of Portland cement is a highly energy-intensive process that releases significant amounts of CO2. While cement is a necessary binder in some road layers or concrete roads, its extensive use, especially compared to alternative binders or technologies, can increase the carbon footprint. Preferences for sustainability often involve reducing cement use or using supplementary cementitious materials. Therefore, options 1, 2, and 3 are preferred for ensuring environmental sustainability or reducing carbon footprint in rural road construction. Environmentally sustainable practices in road construction involve utilizing waste materials, employing low-energy technologies like cold mix asphalt, and using materials like geotextiles to enhance durability and reduce material use.","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\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/","og_locale":"en_US","og_type":"article","og_title":"In rural road construction, the use of which of the following is prefe","og_description":"Statement 1 is correct: Copper slag is an industrial waste product that can be used as a substitute for natural aggregate in road construction. Using waste materials contributes to environmental sustainability by reducing the need for virgin resources and addressing waste disposal. Statement 2 is correct: Cold mix asphalt technology uses asphalt emulsion or foamed asphalt at lower temperatures compared to hot mix asphalt. This significantly reduces energy consumption and greenhouse gas emissions during production and laying, making it environmentally preferable. Statement 3 is correct: Geotextiles are used in road construction for separation, filtration, reinforcement, and drainage. They can improve the structural integrity and lifespan of roads, potentially allowing for thinner pavement layers and reducing the overall material requirement, contributing to resource efficiency. Statement 4 is incorrect: Hot mix asphalt technology requires heating asphalt binder and aggregates to high temperatures (typically 150-190\u00b0C), leading to high energy consumption and emissions, making it less environmentally sustainable compared to cold mix. Statement 5 is incorrect: The production of Portland cement is a highly energy-intensive process that releases significant amounts of CO2. While cement is a necessary binder in some road layers or concrete roads, its extensive use, especially compared to alternative binders or technologies, can increase the carbon footprint. Preferences for sustainability often involve reducing cement use or using supplementary cementitious materials. Therefore, options 1, 2, and 3 are preferred for ensuring environmental sustainability or reducing carbon footprint in rural road construction. Environmentally sustainable practices in road construction involve utilizing waste materials, employing low-energy technologies like cold mix asphalt, and using materials like geotextiles to enhance durability and reduce material use.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T11:04:54+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/","url":"https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/","name":"In rural road construction, the use of which of the following is prefe","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T11:04:54+00:00","dateModified":"2025-06-01T11:04:54+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Statement 1 is correct: Copper slag is an industrial waste product that can be used as a substitute for natural aggregate in road construction. Using waste materials contributes to environmental sustainability by reducing the need for virgin resources and addressing waste disposal. Statement 2 is correct: Cold mix asphalt technology uses asphalt emulsion or foamed asphalt at lower temperatures compared to hot mix asphalt. This significantly reduces energy consumption and greenhouse gas emissions during production and laying, making it environmentally preferable. Statement 3 is correct: Geotextiles are used in road construction for separation, filtration, reinforcement, and drainage. They can improve the structural integrity and lifespan of roads, potentially allowing for thinner pavement layers and reducing the overall material requirement, contributing to resource efficiency. Statement 4 is incorrect: Hot mix asphalt technology requires heating asphalt binder and aggregates to high temperatures (typically 150-190\u00b0C), leading to high energy consumption and emissions, making it less environmentally sustainable compared to cold mix. Statement 5 is incorrect: The production of Portland cement is a highly energy-intensive process that releases significant amounts of CO2. While cement is a necessary binder in some road layers or concrete roads, its extensive use, especially compared to alternative binders or technologies, can increase the carbon footprint. Preferences for sustainability often involve reducing cement use or using supplementary cementitious materials. Therefore, options 1, 2, and 3 are preferred for ensuring environmental sustainability or reducing carbon footprint in rural road construction. Environmentally sustainable practices in road construction involve utilizing waste materials, employing low-energy technologies like cold mix asphalt, and using materials like geotextiles to enhance durability and reduce material use.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/in-rural-road-construction-the-use-of-which-of-the-following-is-prefe\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC IAS","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-ias\/"},{"@type":"ListItem","position":3,"name":"In rural road construction, the use of which of the following is prefe"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91747","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=91747"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91747\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=91747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=91747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=91747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}