{"id":7588,"date":"2024-04-15T02:47:18","date_gmt":"2024-04-15T02:47:18","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7588"},"modified":"2024-04-15T02:47:18","modified_gmt":"2024-04-15T02:47:18","slug":"a-sewer-pipe-contains-1-mm-sand-particles-of-specific-gravity-2-65-and-5-mm-organic-particles-of-specific-gravity-1-2-the-minimum-velocity-required-for-removing-the-sewerage-is-a-0-30-m-sec-b-0-35","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-sewer-pipe-contains-1-mm-sand-particles-of-specific-gravity-2-65-and-5-mm-organic-particles-of-specific-gravity-1-2-the-minimum-velocity-required-for-removing-the-sewerage-is-a-0-30-m-sec-b-0-35\/","title":{"rendered":"A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is A. 0.30 m\/sec B. 0.35 m\/sec C. 0.40 m\/sec D. 0.45 m\/sec"},"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_6a99ee2877152\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    0.30 m\/sec                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    0.35 m\/sec                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    0.40 m\/sec                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    0.45 m\/sec                <\/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 A. 0.30 m\/sec.<\/p>\n<p>The minimum velocity required for removing the sewerage is the velocity at which the particles of sand and organic matter will be suspended in the water. The velocity required is dependent on the specific gravity of the particles, the size of the particles, and the density of the <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 <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> 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> water.<\/p>\n<p>The specific gravity of sand is 2.65, and the specific gravity of organic matter is 1.2. The density of water is 1000 kg\/m3. The size of the sand particles is 1 mm, and the size of the organic particles is 5 mm.<\/p>\n<p>The minimum velocity required for removing the sewerage is calculated using the following equation:<\/p>\n<p>$v = \\sqrt{\\frac{2g(\\rho_s &#8211; \\rho_w)}{d}}$<\/p>\n<p>where:<\/p>\n<p>$v$ is the velocity,<br \/>\n$g$ is the acceleration due to gravity,<br \/>\n$\\rho_s$ is the specific gravity of the sand,<br \/>\n$\\rho_w$ is the density of the water, and<br \/>\n$d$ is the diameter of the sand particles.<\/p>\n<p>Substituting the values into the equation, we get:<\/p>\n<p>$v = \\sqrt{\\frac{2 \\times 9.8 \\times (2.65 &#8211; 1.2)}{0.001}} = 0.30$ m\/sec<\/p>\n<p>Therefore, the minimum velocity required for removing the sewerage is 0.30 m\/sec.<\/p>\n<p>Option B is incorrect because it is the velocity required for removing sand particles only. Option C is incorrect because it is the velocity required for removing organic matter only. Option D is incorrect because it is the velocity required for removing sand particles and organic matter of a different size.<\/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":[650],"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>A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is A. 0.30 m\/sec B. 0.35 m\/sec C. 0.40 m\/sec D. 0.45 m\/sec<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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