{"id":7198,"date":"2024-04-15T02:41:10","date_gmt":"2024-04-15T02:41:10","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7198"},"modified":"2024-04-15T02:41:10","modified_gmt":"2024-04-15T02:41:10","slug":"a-model-of-torpedo-is-tested-in-a-towing-tank-at-a-velocity-of-25-m-sec-the-prototype-is-expected-to-attain-a-velocity-of-5-m-sec-what-model-scale-has-been-used-a-1-5-b-1-2-5-c-1-25-d-15","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-model-of-torpedo-is-tested-in-a-towing-tank-at-a-velocity-of-25-m-sec-the-prototype-is-expected-to-attain-a-velocity-of-5-m-sec-what-model-scale-has-been-used-a-1-5-b-1-2-5-c-1-25-d-15\/","title":{"rendered":"A model of torpedo is tested in a towing tank at a velocity of 25 m\/sec. The prototype is expected to attain a velocity of 5 m\/sec. What model scale has been used ? A. 1 : 5 B. 1 : 2.5 C. 1 :25 D. 1:50"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;01:05&#8243; option2=&#8221;01:02.5&#8243; option3=&#8221;01:25&#8243; option4=&#8221;01:50&#8243; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is $\\boxed{\\text{A. }1:5}$.<\/p>\n<p>The model scale is the ratio of the prototype&#8217;s dimensions to the model&#8217;s dimensions. In this case, the prototype is expected to attain a velocity of 5 m\/sec, while the model is tested at a velocity of 25 m\/sec. This means that the model is 5 times smaller than the prototype. Therefore, the model scale is 1:5.<\/p>\n<p>Option B is incorrect because the model is 5 times smaller than the prototype, not 2.5 times smaller.<\/p>\n<p>Option C is incorrect because the model is 5 times smaller than the prototype, not 25 times smaller.<\/p>\n<p>Option D is incorrect because the model is 5 times smaller than the prototype, not 50 times smaller.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;01:05&#8243; option2=&#8221;01:02.5&#8243; option3=&#8221;01:25&#8243; option4=&#8221;01:50&#8243; correct=&#8221;option3&#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-7198","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>A model of torpedo is tested in a towing tank at a velocity of 25 m\/sec. 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