{"id":7228,"date":"2024-04-15T02:41:38","date_gmt":"2024-04-15T02:41:38","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7228"},"modified":"2024-04-15T02:41:38","modified_gmt":"2024-04-15T02:41:38","slug":"the-correct-relationship-among-displacement-thickness-d-momentum-thickness-m-and-energy-thickness-e-is-a-d-m-e-b-d-e-m-c-e-m-d-d-e-d-m","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-correct-relationship-among-displacement-thickness-d-momentum-thickness-m-and-energy-thickness-e-is-a-d-m-e-b-d-e-m-c-e-m-d-d-e-d-m\/","title":{"rendered":"The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is A. d > m > e B. d > e > m C. e > m > d D. e > d > 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_6a9c18c3a34fa\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    &#8221;d                <\/div>\r\n                                                                                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    &#8221;d                <\/div>\r\n                                                                                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    &#8221;e                <\/div>\r\n                                                                                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    &#8221;e                <\/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: C. e &gt; m &gt; d<\/p>\n<p>Displacement thickness is a measure of how much the boundary layer displaces the freestream flow. Momentum thickness is a measure of how much the boundary layer reduces the momentum of the freestream flow. Energy thickness is a measure of how much the boundary layer reduces the energy of the freestream flow.<\/p>\n<p>Since the boundary layer reduces the momentum and energy of the freestream flow, the displacement thickness, momentum thickness, and energy thickness must be greater than or equal to zero.<\/p>\n<p>The displacement thickness is the smallest of the three thicknesses, since it only <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            <span class=\"youtube-icon\">\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>             <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> measures the displacement of the freestream flow. The momentum thickness is greater than the displacement thickness, since it also measures the reduction in momentum of the freestream flow. The energy thickness is the greatest of the three thicknesses, since it also measures the reduction in energy of the freestream flow.<\/p>\n<p>Therefore, the correct relationship among displacement thickness, momentum thickness, and energy thickness is:<\/p>\n<p>e &gt; m &gt; d<\/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":[648],"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 correct relationship among displacement thickness d, momentum thickness m and energy thickness e is A. d &gt; m &gt; e B. d &gt; e &gt; m C. e &gt; m &gt; d D. e &gt; d &gt; m<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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