{"id":53910,"date":"2024-04-16T00:01:13","date_gmt":"2024-04-16T00:01:13","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=53910"},"modified":"2024-04-16T00:01:13","modified_gmt":"2024-04-16T00:01:13","slug":"if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/","title":{"rendered":"If the field of a D.C. shunt motor gets opened while motor is running"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;The speed of motor will be reduced %&#8221; option2=&#8221;The armature current will reduce&#8221; option3=&#8221;shunt motor gets opened while motor is running A. The speed of motor will be reduced % B. The armature current will reduce C. The motor will attain dangerously high speed 1&#8243; option4=&#8221;The motor will continue to run at constant speed&#8221; correct=&#8221;option2&#8243;]<!--more--><\/p>\n<p>The correct answer is: The speed of motor will be reduced.<\/p>\n<p>When the field of a D.C. shunt motor gets opened while motor is running, the speed of the motor will be reduced. This is because the field current is reduced, which causes the magnetic field to weaken. The weakened magnetic field allows the armature to rotate faster, which reduces the speed of the motor.<\/p>\n<p>Option A is incorrect because the speed of the motor will be reduced, not increased.<\/p>\n<p>Option B is incorrect because the armature current will increase, not decrease.<\/p>\n<p>Option C is incorrect because the motor will not attain dangerously high speed. The motor will only attain dangerously high speed if the field current is increased, not decreased.<\/p>\n<p>Option D is incorrect because the motor will not continue to run at constant speed. The speed of the motor will be reduced when the field of the motor is opened.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;The speed of motor will be reduced %&#8221; option2=&#8221;The armature current will reduce&#8221; option3=&#8221;shunt motor gets opened while motor is running A. The speed of motor will be reduced % B. The armature current will reduce C. The motor will attain dangerously high speed 1&#8243; option4=&#8221;The motor will continue to run at constant speed&#8221; &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"If the field of a D.C. shunt motor gets opened while motor is running\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/#more-53910\">Detailed Solution<span class=\"screen-reader-text\">If the field of a D.C. shunt motor gets opened while motor is running<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[743],"tags":[],"class_list":["post-53910","post","type-post","status-publish","format-standard","hentry","category-d-c-motors","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>If the field of a D.C. shunt motor gets opened while motor is running<\/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\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"If the field of a D.C. shunt motor gets opened while motor is running\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;The speed of motor will be reduced %&#8221; option2=&#8221;The armature current will reduce&#8221; option3=&#8221;shunt motor gets opened while motor is running A. The speed of motor will be reduced % B. The armature current will reduce C. The motor will attain dangerously high speed 1&#8243; option4=&#8221;The motor will continue to run at constant speed&#8221; ... 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The speed of motor will be reduced % B. The armature current will reduce C. The motor will attain dangerously high speed 1&#8243; option4=&#8221;The motor will continue to run at constant speed&#8221; ... Detailed SolutionIf the field of a D.C. shunt motor gets opened while motor is running","og_url":"https:\/\/exam.pscnotes.com\/mcq\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-04-16T00:01:13+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\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/","url":"https:\/\/exam.pscnotes.com\/mcq\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/","name":"If the field of a D.C. shunt motor gets opened while motor is running","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2024-04-16T00:01:13+00:00","dateModified":"2024-04-16T00:01:13+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-the-field-of-a-d-c-shunt-motor-gets-opened-while-motor-is-running\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"mcq","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/"},{"@type":"ListItem","position":3,"name":"Electrical engineering","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/mcq\/electrical-engineering\/"},{"@type":"ListItem","position":4,"name":"D.c. 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