{"id":5738,"date":"2024-04-15T02:18:01","date_gmt":"2024-04-15T02:18:01","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=5738"},"modified":"2024-04-15T02:18:01","modified_gmt":"2024-04-15T02:18:01","slug":"the-reinforced-concrete-beam-which-has-width-25-cm-lever-arm-40-cm-shear-force-6-t-cm2-safe-shear-stress-5-kg-cm2-and-b-m-24-mt-a-is-safe-in-shear-b-is-unsafe-in-shear-c-is-over-safe-in-shear","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-reinforced-concrete-beam-which-has-width-25-cm-lever-arm-40-cm-shear-force-6-t-cm2-safe-shear-stress-5-kg-cm2-and-b-m-24-mt-a-is-safe-in-shear-b-is-unsafe-in-shear-c-is-over-safe-in-shear\/","title":{"rendered":"The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6 t\/cm2, safe shear stress 5 kg\/cm2 and B.M. 24 mt, A. Is safe in shear B. Is unsafe in shear C. Is over safe in shear D. Needs redesigning"},"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_6a9aaa9f76fa9\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Is safe in shear                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Is unsafe in shear                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    Is over safe in shear                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Needs redesigning                <\/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: The reinforced concrete beam is safe in shear.<\/p>\n<p>The safe shear stress for a reinforced concrete beam is 5 kg\/cm2. The shear force on the beam is 6 t\/cm2, which is less than the safe shear stress. Therefore, the beam is safe in shear.<\/p>\n<p>The shear force is the force that acts parallel to the cross-section of the beam. The lever arm is the distance from the neutral axis to the outermost fiber of the beam. The safe shear stress is the maximum shear stress that the beam can withstand without failing.<\/p>\n<p>If the shear force is greater than the safe shear stress, the beam will fail in shear. This can cause the beam to crack or break. To prevent this, the beam can be reinforced with steel bars. The steel bars will help to distribute the shear <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               <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>      <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> force and prevent the beam from failing.<\/p>\n<p>In this case, the shear force is less than the safe shear stress, so the beam is safe in shear. The beam does not need to be redesigned.<\/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":[640],"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 reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6 t\/cm2, safe shear stress 5 kg\/cm2 and B.M. 24 mt, A. Is safe in shear B. Is unsafe in shear C. Is over safe in shear D. 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