{"id":87305,"date":"2025-06-01T06:39:48","date_gmt":"2025-06-01T06:39:48","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87305"},"modified":"2025-06-01T06:39:48","modified_gmt":"2025-06-01T06:39:48","slug":"thermal-conductivity-of-aluminium-copper-and-stainless-steel-increase","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/thermal-conductivity-of-aluminium-copper-and-stainless-steel-increase\/","title":{"rendered":"Thermal conductivity of aluminium, copper and stainless steel increase"},"content":{"rendered":"

Thermal conductivity of aluminium, copper and stainless steel increases in the order<\/p>\n

[amp_mcq option1=”Copper < Aluminium < Stainless Steel\" option2=\"Stainless Steel < Aluminium < Copper\" option3=\"Aluminium < Copper < Stainless Steel\" option4=\"Copper < Stainless Steel < Aluminium\" correct=\"option2\"]\n\n\n\n

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\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2015<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThermal conductivity is a measure of a material’s ability to conduct heat. Generally, pure metals are good thermal conductors, while alloys and non-metals are poorer conductors. Among the given options, copper is an excellent thermal conductor, aluminium is also good but less so than copper, and stainless steel (an alloy of iron, chromium, nickel, etc.) is a relatively poor conductor compared to pure metals. Typical thermal conductivity values (in W\/m\u00b7K) are approximately: Copper \u2248 400, Aluminium \u2248 205, Stainless Steel \u2248 15-20. Therefore, the order of increasing thermal conductivity is Stainless Steel < Aluminium < Copper.\n<\/section>\n
\nDifferent materials have different thermal conductivity values; pure metals like copper and aluminium are typically better conductors than alloys like stainless steel.
\n<\/section>\n
\nGood thermal conductors are used in applications like heat sinks and cooking utensils, while poor conductors (thermal insulators) are used for insulation purposes.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Thermal conductivity of aluminium, copper and stainless steel increases in the order [amp_mcq option1=”Copper < Aluminium < Stainless Steel\" option2=\"Stainless Steel < Aluminium < Copper\" option3=\"Aluminium < Copper < Stainless Steel\" option4=\"Copper < Stainless Steel < Aluminium\" correct=\"option2\"] This question was previously asked in UPSC NDA-1 – 2015 Download PDFAttempt Online Thermal conductivity is a ... \n\n

Detailed SolutionThermal conductivity of aluminium, copper and stainless steel increase<\/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":[1093],"tags":[1443,1160,1128],"class_list":["post-87305","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1443","tag-physical-properties-of-materials","tag-physics","no-featured-image-padding"],"yoast_head":"\nThermal conductivity of aluminium, copper and stainless steel increase<\/title>\n<meta name=\"description\" content=\"Thermal conductivity is a measure of a material's ability to conduct heat. Generally, pure metals are good thermal conductors, while alloys and non-metals are poorer conductors. Among the given options, copper is an excellent thermal conductor, aluminium is also good but less so than copper, and stainless steel (an alloy of iron, chromium, nickel, etc.) is a relatively poor conductor compared to pure metals. Typical thermal conductivity values (in W\/m\u00b7K) are approximately: Copper \u2248 400, Aluminium \u2248 205, Stainless Steel \u2248 15-20. Therefore, the order of increasing thermal conductivity is Stainless Steel < Aluminium < Copper. Different materials have different thermal conductivity values; pure metals like copper and aluminium are typically better conductors than alloys like stainless steel.\" \/>\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\/thermal-conductivity-of-aluminium-copper-and-stainless-steel-increase\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thermal conductivity of aluminium, copper and stainless steel increase\" \/>\n<meta property=\"og:description\" content=\"Thermal conductivity is a measure of a material's ability to conduct heat. Generally, pure metals are good thermal conductors, while alloys and non-metals are poorer conductors. Among the given options, copper is an excellent thermal conductor, aluminium is also good but less so than copper, and stainless steel (an alloy of iron, chromium, nickel, etc.) is a relatively poor conductor compared to pure metals. Typical thermal conductivity values (in W\/m\u00b7K) are approximately: Copper \u2248 400, Aluminium \u2248 205, Stainless Steel \u2248 15-20. Therefore, the order of increasing thermal conductivity is Stainless Steel < Aluminium < Copper. Different materials have different thermal conductivity values; pure metals like copper and aluminium are typically better conductors than alloys like stainless steel.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/thermal-conductivity-of-aluminium-copper-and-stainless-steel-increase\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:39:48+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":"Thermal conductivity of aluminium, copper and stainless steel increase","description":"Thermal conductivity is a measure of a material's ability to conduct heat. 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Different materials have different thermal conductivity values; pure metals like copper and aluminium are typically better conductors than alloys like stainless steel.","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\/thermal-conductivity-of-aluminium-copper-and-stainless-steel-increase\/","og_locale":"en_US","og_type":"article","og_title":"Thermal conductivity of aluminium, copper and stainless steel increase","og_description":"Thermal conductivity is a measure of a material's ability to conduct heat. Generally, pure metals are good thermal conductors, while alloys and non-metals are poorer conductors. Among the given options, copper is an excellent thermal conductor, aluminium is also good but less so than copper, and stainless steel (an alloy of iron, chromium, nickel, etc.) is a relatively poor conductor compared to pure metals. Typical thermal conductivity values (in W\/m\u00b7K) are approximately: Copper \u2248 400, Aluminium \u2248 205, Stainless Steel \u2248 15-20. Therefore, the order of increasing thermal conductivity is Stainless Steel < Aluminium < Copper. Different materials have different thermal conductivity values; pure metals like copper and aluminium are typically better conductors than alloys like stainless steel.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/thermal-conductivity-of-aluminium-copper-and-stainless-steel-increase\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T06:39:48+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/thermal-conductivity-of-aluminium-copper-and-stainless-steel-increase\/","url":"https:\/\/exam.pscnotes.com\/mcq\/thermal-conductivity-of-aluminium-copper-and-stainless-steel-increase\/","name":"Thermal conductivity of aluminium, copper and stainless steel increase","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T06:39:48+00:00","dateModified":"2025-06-01T06:39:48+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Thermal conductivity is a measure of a material's ability to conduct heat. 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