{"id":7316,"date":"2024-04-15T02:42:55","date_gmt":"2024-04-15T02:42:55","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7316"},"modified":"2024-04-15T02:42:55","modified_gmt":"2024-04-15T02:42:55","slug":"the-distance-y-from-pipe-boundary-at-which-the-point-velocity-is-equal-to-average-velocity-for-turbulent-flow-is-where-r-is-radius-of-pipe-a-0-223-r-b-0-423-r-c-0-577-r-d-0-707-r","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-distance-y-from-pipe-boundary-at-which-the-point-velocity-is-equal-to-average-velocity-for-turbulent-flow-is-where-r-is-radius-of-pipe-a-0-223-r-b-0-423-r-c-0-577-r-d-0-707-r\/","title":{"rendered":"The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R is radius of pipe) A. 0.223 R B. 0.423 R C. 0.577 R D. 0.707 R"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;0.223 R&#8221; option2=&#8221;0.423 R&#8221; option3=&#8221;0.577 R&#8221; option4=&#8221;0.707 R&#8221; correct=&#8221;option2&#8243;]<!--more--><\/p>\n<p>The correct answer is $\\boxed{0.577 R}$.<\/p>\n<p>The point velocity is the velocity at a particular point in a fluid, while the average velocity is the average of the velocities of all the points in a fluid. In turbulent flow, the point velocity is equal to the average velocity at a distance of $0.577 R$ from the pipe boundary. This is because the turbulent eddies are of a size comparable to the pipe radius, and the point velocity is equal to the average velocity at a distance of one-half the eddy size from the pipe boundary.<\/p>\n<p>Option A is incorrect because the point velocity is not equal to the average velocity at a distance of $0.223 R$ from the pipe boundary. Option B is incorrect because the point velocity is not equal to the average velocity at a distance of $0.423 R$ from the pipe boundary. Option C is incorrect because the point velocity is not equal to the average velocity at a distance of $0.707 R$ from the pipe boundary.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;0.223 R&#8221; option2=&#8221;0.423 R&#8221; option3=&#8221;0.577 R&#8221; option4=&#8221;0.707 R&#8221; correct=&#8221;option2&#8243;]<\/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":[],"class_list":["post-7316","post","type-post","status-publish","format-standard","hentry","category-hydraulics-and-fluid-mechanics","no-featured-image-padding"],"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 distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is (where R 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