{"id":7288,"date":"2024-04-15T02:42:31","date_gmt":"2024-04-15T02:42:31","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7288"},"modified":"2024-04-15T02:42:31","modified_gmt":"2024-04-15T02:42:31","slug":"select-the-correct-statement-a-the-absolute-roughness-of-a-pipe-de-creases-with-time-b-a-pipe-becomes-smooth-after-using-for-long-time-c-the-friction-factor-decreases-with-time-d-the-absolute-rou","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/select-the-correct-statement-a-the-absolute-roughness-of-a-pipe-de-creases-with-time-b-a-pipe-becomes-smooth-after-using-for-long-time-c-the-friction-factor-decreases-with-time-d-the-absolute-rou\/","title":{"rendered":"Select the correct statement. A. The absolute roughness of a pipe de-creases with time B. A pipe becomes smooth after using for long time C. The friction factor decreases with time D. The absolute roughness increases with time"},"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_6a98803592658\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    The absolute roughness of a pipe de-creases with time                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    A pipe becomes smooth after using for long time                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    The friction factor decreases with time                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"true\">\r\n                    The absolute roughness increases with time                <\/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: D. The absolute roughness increases with time.<\/p>\n<p>The absolute roughness of a pipe is a measure of the small irregularities on the surface of the pipe. These irregularities can cause friction between the fluid flowing through the pipe and the pipe wall. As the pipe ages, these irregularities can become larger, which increases the absolute roughness of the pipe. This increase in absolute roughness can lead to an increase in friction and a decrease in the flow rate of the fluid.<\/p>\n<p>Option A is incorrect because the absolute roughness of a pipe does not decrease with time. In fact, it increases with time.<\/p>\n<p>Option B is incorrect because a pipe does not become smooth after using for long time. In fact, the opposite is true. The pipe becomes rougher with time.<\/p>\n<p>Option C is incorrect because the friction factor does not decrease with time. In fact, it increases with time. This is because the increase in absolute roughness causes an increase in friction.<\/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>Select the correct statement. A. The absolute roughness of a pipe de-creases with time B. A pipe becomes smooth after using for long time C. The friction factor decreases with time D. 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