{"id":5918,"date":"2024-04-15T02:20:59","date_gmt":"2024-04-15T02:20:59","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=5918"},"modified":"2024-04-15T02:20:59","modified_gmt":"2024-04-15T02:20:59","slug":"select-the-incorrect-statement-a-the-loss-of-prestress-is-more-in-pre-tensioning-system-than-in-post-tensioning-system-b-pretensioning-system-has-greater-certainty-about-its-durability-c-for-heav","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/select-the-incorrect-statement-a-the-loss-of-prestress-is-more-in-pre-tensioning-system-than-in-post-tensioning-system-b-pretensioning-system-has-greater-certainty-about-its-durability-c-for-heav\/","title":{"rendered":"Select the incorrect statement A. The loss of prestress is more in pre-tensioning system than in post-tensioning system. B. Pretensioning system has greater certainty about its durability. C. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system D. none of the above"},"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_6a9abca75ab36\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    The loss of prestress is more in pre-tensioning system than in post-tensioning system.                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Pretensioning system has greater certainty about its durability.                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    none of the above                <\/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.<\/p>\n<p>Pretensioning is a method of prestressing concrete in which the tendons are tensioned before the concrete is placed. Post-tensioning is a method of prestressing concrete in which the tendons are tensioned <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> after the concrete has been placed.<\/p>\n<p>The main advantage of pretensioning is that it results in a more durable concrete structure. This is because the concrete is placed under compression when the tendons are tensioned, which helps to protect it from cracking. The main advantage of post-tensioning is that it is more flexible than pretensioning. This is because the tendons can be tensioned after the concrete has been placed, which allows for more precise control of the prestress force.<\/p>\n<p>For heavy loads and large spans, post-tensioning is usually the preferred method. This is because the tendons can be tensioned to a higher level of stress, <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                <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> which results in a more efficient structure. However, for smaller structures, pretensioning may be the more economical option.<\/p>\n<p>In conclusion, the incorrect statement is C. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system.<\/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":[641],"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>Select the incorrect statement A. The loss of prestress is more in pre-tensioning system than in post-tensioning system. B. Pretensioning system has greater certainty about its durability. C. 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