{"id":7902,"date":"2024-04-15T02:52:06","date_gmt":"2024-04-15T02:52:06","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7902"},"modified":"2024-04-15T02:52:06","modified_gmt":"2024-04-15T02:52:06","slug":"an-aircraft-is-flying-in-an-atmosphere-of-30ac-with-a-speed-of-1260-kmph-its-speed-is-known-as-a-subsonic-b-sonic-c-super-sonic-d-mach","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/an-aircraft-is-flying-in-an-atmosphere-of-30ac-with-a-speed-of-1260-kmph-its-speed-is-known-as-a-subsonic-b-sonic-c-super-sonic-d-mach\/","title":{"rendered":"An aircraft is flying in an atmosphere of 30\u00c2\u00b0C with a speed of 1260 kmph. Its speed is known as A. Subsonic B. Sonic C. Super-sonic D. Mach"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Subsonic&#8221; option2=&#8221;Sonic&#8221; option3=&#8221;Super-sonic&#8221; option4=&#8221;Mach&#8221; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>Subsonic<\/strong>.<\/p>\n<p>Subsonic speed is the speed of an object that is slower than the speed of sound in the surrounding medium. The speed of sound in air at 30\u00c2\u00b0C is 343 meters per second, or 1225 kilometers per hour. Therefore, an aircraft flying at a speed of 1260 kilometers per hour is flying at subsonic speed.<\/p>\n<p>Sonic speed is the speed of sound in a particular medium. The speed of sound in air at 30\u00c2\u00b0C is 343 meters per second, or 1225 kilometers per hour.<\/p>\n<p>Supersonic speed is the speed of an object that is faster than the speed of sound in the surrounding medium. An aircraft flying at a speed of 1260 kilometers per hour is not flying at supersonic speed.<\/p>\n<p>Mach is a unit of measurement for speed equal to the speed of sound in a particular medium. The speed of sound in air at 30\u00c2\u00b0C is 343 meters per second, or 1225 kilometers per hour. Therefore, an aircraft flying at a speed of 1260 kilometers per hour is flying at Mach 0.93.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Subsonic&#8221; option2=&#8221;Sonic&#8221; option3=&#8221;Super-sonic&#8221; option4=&#8221;Mach&#8221; correct=&#8221;option1&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[651],"tags":[],"class_list":["post-7902","post","type-post","status-publish","format-standard","hentry","category-airport-engineering","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>An aircraft is flying in an atmosphere of 30\u00c2\u00b0C with a speed of 1260 kmph. Its speed is known as A. Subsonic B. Sonic C. Super-sonic D. Mach<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/an-aircraft-is-flying-in-an-atmosphere-of-30ac-with-a-speed-of-1260-kmph-its-speed-is-known-as-a-subsonic-b-sonic-c-super-sonic-d-mach\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"An aircraft is flying in an atmosphere of 30\u00c2\u00b0C with a speed of 1260 kmph. Its speed is known as A. Subsonic B. Sonic C. Super-sonic D. Mach\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;Subsonic&#8221; option2=&#8221;Sonic&#8221; option3=&#8221;Super-sonic&#8221; option4=&#8221;Mach&#8221; correct=&#8221;option1&#8243;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/an-aircraft-is-flying-in-an-atmosphere-of-30ac-with-a-speed-of-1260-kmph-its-speed-is-known-as-a-subsonic-b-sonic-c-super-sonic-d-mach\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-15T02:52:06+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"An aircraft is flying in an atmosphere of 30\u00c2\u00b0C with a speed of 1260 kmph. Its speed is known as A. Subsonic B. Sonic C. Super-sonic D. Mach","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/an-aircraft-is-flying-in-an-atmosphere-of-30ac-with-a-speed-of-1260-kmph-its-speed-is-known-as-a-subsonic-b-sonic-c-super-sonic-d-mach\/","og_locale":"en_US","og_type":"article","og_title":"An aircraft is flying in an atmosphere of 30\u00c2\u00b0C with a speed of 1260 kmph. Its speed is known as A. Subsonic B. Sonic C. Super-sonic D. Mach","og_description":"[amp_mcq option1=&#8221;Subsonic&#8221; option2=&#8221;Sonic&#8221; option3=&#8221;Super-sonic&#8221; option4=&#8221;Mach&#8221; correct=&#8221;option1&#8243;]","og_url":"https:\/\/exam.pscnotes.com\/mcq\/an-aircraft-is-flying-in-an-atmosphere-of-30ac-with-a-speed-of-1260-kmph-its-speed-is-known-as-a-subsonic-b-sonic-c-super-sonic-d-mach\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-04-15T02:52:06+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/an-aircraft-is-flying-in-an-atmosphere-of-30ac-with-a-speed-of-1260-kmph-its-speed-is-known-as-a-subsonic-b-sonic-c-super-sonic-d-mach\/","url":"https:\/\/exam.pscnotes.com\/mcq\/an-aircraft-is-flying-in-an-atmosphere-of-30ac-with-a-speed-of-1260-kmph-its-speed-is-known-as-a-subsonic-b-sonic-c-super-sonic-d-mach\/","name":"An aircraft is flying in an atmosphere of 30\u00c2\u00b0C with a speed of 1260 kmph. 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