{"id":7676,"date":"2024-04-15T02:48:42","date_gmt":"2024-04-15T02:48:42","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7676"},"modified":"2024-04-15T02:48:42","modified_gmt":"2024-04-15T02:48:42","slug":"for-a-grit-chamber-if-the-recommended-velocity-of-flow-is-0-2-m-sec-and-detention-period-is-2-minutes-the-length-of-the-tank-is-a-16-m-b-20-m-c-24-m-d-30-m","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/for-a-grit-chamber-if-the-recommended-velocity-of-flow-is-0-2-m-sec-and-detention-period-is-2-minutes-the-length-of-the-tank-is-a-16-m-b-20-m-c-24-m-d-30-m\/","title":{"rendered":"For a grit chamber, if the recommended velocity of flow is 0.2 m\/sec and detention period is 2 minutes, the length of the tank, is A. 16 m B. 20 m C. 24 m D. 30 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_6a9ee2f0876be\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    16 m                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    20 m                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    24 m                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    30 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 $\\boxed{\\text{B) 20 m}}$.<\/p>\n<p>The detention time is the amount of time that water spends in a tank. It is calculated by dividing the volume of the tank by the flow rate. In this case, the detention time is 2 minutes, or 120 seconds.<\/p>\n<p>The velocity of flow is the speed at which water moves through a pipe or channel. It is calculated by dividing the distance traveled by the time it takes to travel that distance. In this case, the velocity of flow is 0.2 m\/s.<\/p>\n<p>The length of the tank is the distance from one end of the tank to the other. It is calculated by multiplying the velocity of flow by the detention time. In this case, the length of the tank is 20 m.<\/p>\n<p>Here is a brief explanation of each option:<\/p>\n<ul>\n<li>Option A: 16 m. This is the length of a tank with a velocity of flow of 0.2 m\/s and a detention time of 1 minute. However, the detention time in this case is 2 minutes, so this option is incorrect.<\/li>\n<li>Option B: 20 m. This is the correct answer. The length of the tank is calculated by multiplying 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 <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 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> velocity of flow by the detention time. In this case, the velocity of flow is 0.2 m\/s and the detention time is 2 minutes, so the length of the tank is 20 m.<\/li>\n<li>Option C: 24 m. This is the length of a tank with a velocity of flow of 0.2 m\/s and a detention time of 2.5 minutes. However, the detention time in this case is 2 minutes, so this option is incorrect.<\/li>\n<li>Option D: 30 m. This is the length of a tank with a velocity of flow of 0.3 m\/s and a detention time of 2 minutes. However, the velocity of flow in this case is 0.2 m\/s, so this option is incorrect.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>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>For a grit chamber, if the recommended velocity of flow is 0.2 m\/sec and detention period is 2 minutes, the length of the tank, is A. 16 m B. 20 m C. 24 m D. 30 m<\/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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