{"id":88261,"date":"2025-06-01T07:06:38","date_gmt":"2025-06-01T07:06:38","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88261"},"modified":"2025-06-01T07:06:38","modified_gmt":"2025-06-01T07:06:38","slug":"which-of-the-following-items-is-used-in-the-household-wirings-to-preve","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-items-is-used-in-the-household-wirings-to-preve\/","title":{"rendered":"Which of the following items is used in the household wirings to preve"},"content":{"rendered":"

Which of the following items is used in the household wirings to prevent accidental fire in case of short circuit ?<\/p>\n

[amp_mcq option1=”Insulated wire” option2=”Plastic switches” option3=”Non-metallic coatings on conducting wires” option4=”Electric fuse” correct=”option4″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-2 – 2016<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is D. An electric fuse is a safety device specifically designed to protect electrical circuits and prevent fires caused by overcurrents, such as those resulting from a short circuit.
\n<\/section>\n
\nIn case of a short circuit or overload, an excessively large current flows through the circuit. This large current causes the fuse wire, which has a specific melting point and resistance, to heat up rapidly and melt. When the fuse wire melts, it breaks the circuit, interrupting the flow of current and preventing overheating of wires and appliances, thus preventing accidental fire.
\n<\/section>\n
\nInsulated wires (A) and non-metallic coatings (C) are crucial for preventing *initial* contact between conductors that could cause a short circuit, but they do not protect against the consequences *after* a short circuit or overload has occurred. Plastic switches (B) are used for safely opening and closing circuits under normal operating conditions, not for overcurrent protection. Modern installations often use Miniature Circuit Breakers (MCBs) or Residual Current Devices (RCDs) in addition to or instead of traditional fuses for overcurrent and fault protection.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which of the following items is used in the household wirings to prevent accidental fire in case of short circuit ? [amp_mcq option1=”Insulated wire” option2=”Plastic switches” option3=”Non-metallic coatings on conducting wires” option4=”Electric fuse” correct=”option4″] This question was previously asked in UPSC NDA-2 – 2016 Download PDFAttempt Online The correct answer is D. An electric fuse … <\/p>\n

Detailed SolutionWhich of the following items is used in the household wirings to preve<\/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":[1094],"tags":[1098,1201,1128],"class_list":["post-88261","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1098","tag-electric-current","tag-physics","no-featured-image-padding"],"yoast_head":"\nWhich of the following items is used in the household wirings to preve<\/title>\n<meta name=\"description\" content=\"The correct answer is D. An electric fuse is a safety device specifically designed to protect electrical circuits and prevent fires caused by overcurrents, such as those resulting from a short circuit. In case of a short circuit or overload, an excessively large current flows through the circuit. This large current causes the fuse wire, which has a specific melting point and resistance, to heat up rapidly and melt. When the fuse wire melts, it breaks the circuit, interrupting the flow of current and preventing overheating of wires and appliances, thus preventing accidental fire.\" \/>\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\/which-of-the-following-items-is-used-in-the-household-wirings-to-preve\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following items is used in the household wirings to preve\" \/>\n<meta property=\"og:description\" content=\"The correct answer is D. An electric fuse is a safety device specifically designed to protect electrical circuits and prevent fires caused by overcurrents, such as those resulting from a short circuit. In case of a short circuit or overload, an excessively large current flows through the circuit. This large current causes the fuse wire, which has a specific melting point and resistance, to heat up rapidly and melt. When the fuse wire melts, it breaks the circuit, interrupting the flow of current and preventing overheating of wires and appliances, thus preventing accidental fire.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-items-is-used-in-the-household-wirings-to-preve\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:06:38+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":"Which of the following items is used in the household wirings to preve","description":"The correct answer is D. 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When the fuse wire melts, it breaks the circuit, interrupting the flow of current and preventing overheating of wires and appliances, thus preventing accidental fire.","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\/which-of-the-following-items-is-used-in-the-household-wirings-to-preve\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following items is used in the household wirings to preve","og_description":"The correct answer is D. An electric fuse is a safety device specifically designed to protect electrical circuits and prevent fires caused by overcurrents, such as those resulting from a short circuit. In case of a short circuit or overload, an excessively large current flows through the circuit. 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An electric fuse is a safety device specifically designed to protect electrical circuits and prevent fires caused by overcurrents, such as those resulting from a short circuit. In case of a short circuit or overload, an excessively large current flows through the circuit. This large current causes the fuse wire, which has a specific melting point and resistance, to heat up rapidly and melt. 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