{"id":7836,"date":"2024-04-15T02:51:09","date_gmt":"2024-04-15T02:51:09","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7836"},"modified":"2024-04-15T02:51:09","modified_gmt":"2024-04-15T02:51:09","slug":"the-length-of-runway-under-standard-conditions-is-2000-m-the-elevation-of-airport-site-is-300-m-its-reference-temperature-is-33-05ac-if-the-runway-is-to-be-constructed-with-an-effective-gradi","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-length-of-runway-under-standard-conditions-is-2000-m-the-elevation-of-airport-site-is-300-m-its-reference-temperature-is-33-05ac-if-the-runway-is-to-be-constructed-with-an-effective-gradi\/","title":{"rendered":"The length of runway under standard conditions is 2000 m. The elevation of airport site is 300 m. Its reference temperature is 33.05\u00c2\u00b0C. If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m D. 2800 m"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;2500 m&#8221; option2=&#8221;2600 m&#8221; option3=&#8221;If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m&#8221; option4=&#8221;2800 m&#8221; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is $\\boxed{\\text{B) 2600 m}}$.<\/p>\n<p>The corrected runway length is calculated using the following formula:<\/p>\n<p>$$L_c = L_s \\cdot \\left(1 + \\frac{0.0025 \\cdot h}{100} + \\frac{0.006 \\cdot \\Delta T}{100}\\right)$$<\/p>\n<p>where:<\/p>\n<ul>\n<li>$L_c$ is the corrected runway length<\/li>\n<li>$L_s$ is the length of runway under standard conditions<\/li>\n<li>$h$ is the elevation of airport site<\/li>\n<li>$\\Delta T$ is the difference between the reference temperature and the actual temperature<\/li>\n<\/ul>\n<p>In this case, we have:<\/p>\n<ul>\n<li>$L_s = 2000$ m<\/li>\n<li>$h = 300$ m<\/li>\n<li>$\\Delta T = 33.05\u00c2\u00b0C &#8211; 15\u00c2\u00b0C = 18.05\u00c2\u00b0C$<\/li>\n<\/ul>\n<p>Substituting these values into the formula, we get:<\/p>\n<p>$$L_c = 2000 \\cdot \\left(1 + \\frac{0.0025 \\cdot 300}{100} + \\frac{0.006 \\cdot 18.05}{100}\\right) = 2600\\text{ m}$$<\/p>\n<p>Therefore, the corrected runway length is 2600 m.<\/p>\n<p>The first term in the formula accounts for the effect of elevation. The higher the elevation, the thinner the air and the longer the runway needs to be. The second term accounts for the effect of temperature. The warmer the air, the thinner it is and the longer the runway needs to be.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;2500 m&#8221; option2=&#8221;2600 m&#8221; option3=&#8221;If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m&#8221; option4=&#8221;2800 m&#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":[651],"tags":[],"class_list":["post-7836","post","type-post","status-publish","format-standard","hentry","category-airport-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>The length of runway under standard conditions is 2000 m. The elevation of airport site is 300 m. Its reference temperature is 33.05\u00c2\u00b0C. If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m D. 2800 m<\/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\/the-length-of-runway-under-standard-conditions-is-2000-m-the-elevation-of-airport-site-is-300-m-its-reference-temperature-is-33-05ac-if-the-runway-is-to-be-constructed-with-an-effective-gradi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The length of runway under standard conditions is 2000 m. The elevation of airport site is 300 m. Its reference temperature is 33.05\u00c2\u00b0C. If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m D. 2800 m\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;2500 m&#8221; option2=&#8221;2600 m&#8221; option3=&#8221;If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m&#8221; option4=&#8221;2800 m&#8221; correct=&#8221;option3&#8243;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-length-of-runway-under-standard-conditions-is-2000-m-the-elevation-of-airport-site-is-300-m-its-reference-temperature-is-33-05ac-if-the-runway-is-to-be-constructed-with-an-effective-gradi\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-15T02:51:09+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":"The length of runway under standard conditions is 2000 m. The elevation of airport site is 300 m. Its reference temperature is 33.05\u00c2\u00b0C. If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m D. 2800 m","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\/the-length-of-runway-under-standard-conditions-is-2000-m-the-elevation-of-airport-site-is-300-m-its-reference-temperature-is-33-05ac-if-the-runway-is-to-be-constructed-with-an-effective-gradi\/","og_locale":"en_US","og_type":"article","og_title":"The length of runway under standard conditions is 2000 m. The elevation of airport site is 300 m. Its reference temperature is 33.05\u00c2\u00b0C. If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m D. 2800 m","og_description":"[amp_mcq option1=&#8221;2500 m&#8221; option2=&#8221;2600 m&#8221; option3=&#8221;If the runway is to be constructed with an effective gradient of 0.25 percent, the corrected runway length will be A. 2500 m B. 2600 m C. 2700 m&#8221; option4=&#8221;2800 m&#8221; correct=&#8221;option3&#8243;]","og_url":"https:\/\/exam.pscnotes.com\/mcq\/the-length-of-runway-under-standard-conditions-is-2000-m-the-elevation-of-airport-site-is-300-m-its-reference-temperature-is-33-05ac-if-the-runway-is-to-be-constructed-with-an-effective-gradi\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-04-15T02:51:09+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\/the-length-of-runway-under-standard-conditions-is-2000-m-the-elevation-of-airport-site-is-300-m-its-reference-temperature-is-33-05ac-if-the-runway-is-to-be-constructed-with-an-effective-gradi\/","url":"https:\/\/exam.pscnotes.com\/mcq\/the-length-of-runway-under-standard-conditions-is-2000-m-the-elevation-of-airport-site-is-300-m-its-reference-temperature-is-33-05ac-if-the-runway-is-to-be-constructed-with-an-effective-gradi\/","name":"The length of runway under standard conditions is 2000 m. 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The elevation of airport site is 300 m. Its reference temperature is 33.05\u00c2\u00b0C. 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