{"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>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a997dfb110b5\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    2500 m                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    2600 m                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    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                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    2800 m                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--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>$L_s = 2000$ <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> 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>Join Our Telegram Channel Subscribe on YouTube<\/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":[],"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. 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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. 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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","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2024-04-15T02:51:09+00:00","dateModified":"2024-04-15T02:51:09+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"breadcrumb":{"@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\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["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\/"]}]},{"@type":"BreadcrumbList","@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\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"mcq","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/"},{"@type":"ListItem","position":3,"name":"Civil engineering","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/civil-engineering\/"},{"@type":"ListItem","position":4,"name":"Airport engineering","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/civil-engineering\/airport-engineering\/"},{"@type":"ListItem","position":5,"name":"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. 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