{"id":1991,"date":"2024-07-31T18:07:20","date_gmt":"2024-07-31T18:07:20","guid":{"rendered":"https:\/\/svestudy.com\/?page_id=1991"},"modified":"2025-05-11T10:55:53","modified_gmt":"2025-05-11T10:55:53","slug":"ame-unit-9-q4","status":"publish","type":"page","link":"https:\/\/svestudy.com\/?page_id=1991","title":{"rendered":"AME Unit 9 Q4"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"781\" height=\"86\" src=\"https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-348.png\" alt=\"\" class=\"wp-image-6184\" srcset=\"https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-348.png 781w, https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-348-300x33.png 300w, https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-348-768x85.png 768w\" sizes=\"auto, (max-width: 781px) 100vw, 781px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">(a) Describe with the aid of a sketch, how Bi-metallic strips are utilised to measure temperature.(8)<br>(b) State a typical application for this type of device and its main shortcoming.(2)<\/p>\n\n\n<div class=\"wp-block-ub-content-toggle wp-block-ub-content-toggle-block\" id=\"ub-content-toggle-block-67b6f550-90c4-42b9-ae83-769272f9e47d\" data-mobilecollapse=\"true\" data-desktopcollapse=\"true\" data-preventcollapse=\"false\" data-showonlyone=\"false\">\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-675f4cb6-7ca4-47ae-9ce5-6e5899575e6d\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-0-67b6f550-90c4-42b9-ae83-769272f9e47d\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-67b6f550-90c4-42b9-ae83-769272f9e47d\" style=\"color: #000000; \">Bimetallic Strips for Temperature Measurement<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-0-67b6f550-90c4-42b9-ae83-769272f9e47d\">\n\n<p class=\"wp-block-paragraph\">A bimetallic strip is a temperature measurement device composed of two different metals bonded together.<a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,two%20strips%20or%20two%20ribbons.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,two%20strips%20or%20two%20ribbons.\" target=\"_blank\" rel=\"noreferrer noopener\">1. The Bimetallic Strip Explained &#8211; Fictiv <\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,two%20strips%20or%20two%20ribbons.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,two%20strips%20or%20two%20ribbons.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Principle of Operation:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Dissimilar Metals:<\/strong> The two metals have different coefficients of thermal expansion. \u00a0 <a href=\"http:\/\/physics.bu.edu\/~redner\/211-sp06\/class23\/class23_expansion.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"http:\/\/physics.bu.edu\/~redner\/211-sp06\/class23\/class23_expansion.html\" target=\"_blank\" rel=\"noreferrer noopener\">1. A bimetallic strip is composed of two different materials that have different expansion coefficients. Let&#8217;s say these materials are brass and steel, which have coefficients of linear expansion of &#8211; Physics <\/a><a href=\"http:\/\/physics.bu.edu\/~redner\/211-sp06\/class23\/class23_expansion.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"http:\/\/physics.bu.edu\/~redner\/211-sp06\/class23\/class23_expansion.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"http:\/\/physics.bu.edu\/~redner\/211-sp06\/class23\/class23_expansion.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"http:\/\/physics.bu.edu\/~redner\/211-sp06\/class23\/class23_expansion.html\" target=\"_blank\" rel=\"noreferrer noopener\">physics.bu.edu<\/a><a href=\"http:\/\/physics.bu.edu\/~redner\/211-sp06\/class23\/class23_expansion.html\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Thermal Expansion:<\/strong> When the strip is heated, the two metals expand at different rates, causing the strip to bend. \u00a0 <a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=For%20an%20increase%20in%20temperature,causing%20the%20strip%20to%20bend\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=For%20an%20increase%20in%20temperature,causing%20the%20strip%20to%20bend\" target=\"_blank\" rel=\"noreferrer noopener\">1. The Bimetallic Strip Explained &#8211; Fictiv <\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=For%20an%20increase%20in%20temperature,causing%20the%20strip%20to%20bend\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=For%20an%20increase%20in%20temperature,causing%20the%20strip%20to%20bend\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=For%20an%20increase%20in%20temperature,causing%20the%20strip%20to%20bend\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=For%20an%20increase%20in%20temperature,causing%20the%20strip%20to%20bend\" target=\"_blank\" rel=\"noreferrer noopener\">www.fictiv.com<\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=For%20an%20increase%20in%20temperature,causing%20the%20strip%20to%20bend\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Mechanical Deformation:<\/strong> The bending of the strip can be used to move a pointer on a dial or activate a switch. \u00a0 <a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\">1. How does a bimetal thermometer work? &#8211; WIKA <\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\">www.wika.com<\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Construction:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Two Metals:<\/strong> Typically, brass and steel or invar and nickel are used. \u00a0 <a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\">1. The Bimetallic Strip Explained &#8211; Fictiv <\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\">www.fictiv.com<\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Bonding:<\/strong> The two metals are joined together through welding, brazing, or rolling. \u00a0 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip\" target=\"_blank\" rel=\"noreferrer noopener\">1. Bimetallic strip &#8211; Wikipedia <\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip\" target=\"_blank\" rel=\"noreferrer noopener\">en.wikipedia.org<\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Strip Shape:<\/strong> The strip can be flat, coiled (for increased sensitivity), or spiral-shaped. \u00a0 <a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\">1. Bimetallic Strip Thermometers &#8211; How Thermometers Work | HowStuffWorks <\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\">home.howstuffworks.com<\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Applications:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Thermometers \u00a0 <a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\">1. How does a bimetal thermometer work? &#8211; WIKA <\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\">www.wika.com<\/a><a href=\"https:\/\/www.wika.com\/en-en\/lp_bimetal_thermometer.WIKA#:~:text=Bimetal%20thermometers%20are%20thermometers%20based,a%20helical%20or%20spiral%20tube.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\">Thermostats \u00a0 <a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\">1. Bimetallic Strip Thermometers &#8211; How Thermometers Work | HowStuffWorks <\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\">home.howstuffworks.com<\/a><a href=\"https:\/\/home.howstuffworks.com\/therm2.htm\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\">Overheat protection devices<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Advantages:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Simple construction \u00a0 <a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\">1. The Bimetallic Strip Explained &#8211; Fictiv <\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\">www.fictiv.com<\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=What%20is%20a%20Bimetallic%20Strip,a%20wide%20variety%20of%20applications.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\">Low cost<\/li>\n\n\n\n<li class=\"\">Reliable<\/li>\n\n\n\n<li class=\"\">No external power source required<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Limitations:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Susceptible to mechanical damage<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lower accuracy compared to other temperature sensors \u00a0 <a href=\"https:\/\/www.slideshare.net\/slideshow\/bimetallic-strip-thermometer\/80662974#:~:text=%2D%20Expansion%20thermometers%20like%20liquid%2Din,accurate%2C%20while%20resistance%20thermometers%20and\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.slideshare.net\/slideshow\/bimetallic-strip-thermometer\/80662974#:~:text=%2D%20Expansion%20thermometers%20like%20liquid%2Din,accurate%2C%20while%20resistance%20thermometers%20and\" target=\"_blank\" rel=\"noreferrer noopener\">1. Bimetallic strip thermometer | PPT &#8211; SlideShare <\/a><a href=\"https:\/\/www.slideshare.net\/slideshow\/bimetallic-strip-thermometer\/80662974#:~:text=%2D%20Expansion%20thermometers%20like%20liquid%2Din,accurate%2C%20while%20resistance%20thermometers%20and\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.slideshare.net\/slideshow\/bimetallic-strip-thermometer\/80662974#:~:text=%2D%20Expansion%20thermometers%20like%20liquid%2Din,accurate%2C%20while%20resistance%20thermometers%20and\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.slideshare.net\/slideshow\/bimetallic-strip-thermometer\/80662974#:~:text=%2D%20Expansion%20thermometers%20like%20liquid%2Din,accurate%2C%20while%20resistance%20thermometers%20and\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.slideshare.net\/slideshow\/bimetallic-strip-thermometer\/80662974#:~:text=%2D%20Expansion%20thermometers%20like%20liquid%2Din,accurate%2C%20while%20resistance%20thermometers%20and\" target=\"_blank\" rel=\"noreferrer noopener\">www.slideshare.net<\/a><a href=\"https:\/\/www.slideshare.net\/slideshow\/bimetallic-strip-thermometer\/80662974#:~:text=%2D%20Expansion%20thermometers%20like%20liquid%2Din,accurate%2C%20while%20resistance%20thermometers%20and\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Limited temperature range<\/p>\n\n<\/div>\n\t\t<\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-675f4cb6-7ca4-47ae-9ce5-6e5899575e6d\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-1-67b6f550-90c4-42b9-ae83-769272f9e47d\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-67b6f550-90c4-42b9-ae83-769272f9e47d\" style=\"color: #000000; \">Construction of a Bimetallic Strip<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-1-67b6f550-90c4-42b9-ae83-769272f9e47d\">\n\n<p class=\"wp-block-paragraph\">A bimetallic strip is composed of two different metal strips bonded together lengthwise. These metals typically have significantly different coefficients of thermal expansion. \u00a0<a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=How%20is%20a%20Bimetallic%20Strip,brass%2C%20copper%2C%20or%20steel.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=How%20is%20a%20Bimetallic%20Strip,brass%2C%20copper%2C%20or%20steel.\" target=\"_blank\" rel=\"noreferrer noopener\">1. The Bimetallic Strip Explained &#8211; Fictiv <\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=How%20is%20a%20Bimetallic%20Strip,brass%2C%20copper%2C%20or%20steel.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=How%20is%20a%20Bimetallic%20Strip,brass%2C%20copper%2C%20or%20steel.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=How%20is%20a%20Bimetallic%20Strip,brass%2C%20copper%2C%20or%20steel.\" target=\"_blank\" rel=\"noreferrer noopener\">www.fictiv.com<\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=How%20is%20a%20Bimetallic%20Strip,brass%2C%20copper%2C%20or%20steel.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=Unsourced%20material%20may%20be%20challenged%20and%20removed.&amp;A%20bimetallic%20strip%20or%20bimetal,the%20inner%20side%20when%20cooled.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=Unsourced%20material%20may%20be%20challenged%20and%20removed.&amp;A%20bimetallic%20strip%20or%20bimetal,the%20inner%20side%20when%20cooled.\" target=\"_blank\" rel=\"noreferrer noopener\">2. Bimetallic strip &#8211; Wikipedia <\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=Unsourced%20material%20may%20be%20challenged%20and%20removed.&amp;A%20bimetallic%20strip%20or%20bimetal,the%20inner%20side%20when%20cooled.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=Unsourced%20material%20may%20be%20challenged%20and%20removed.&amp;A%20bimetallic%20strip%20or%20bimetal,the%20inner%20side%20when%20cooled.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Materials:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Common combinations:<\/strong> Steel and brass, or invar and nickel are frequently used due to their differing expansion rates.<\/li>\n\n\n\n<li class=\"\"><strong>Other combinations:<\/strong> Other metals can be used based on specific application requirements.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Bonding Process:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Welding:<\/strong> The two metal strips are often joined together by welding. \u00a0 <a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=Typically%20the%20two%20strips%20or,together%20by%20welding%20or%20soldering.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=Typically%20the%20two%20strips%20or,together%20by%20welding%20or%20soldering.\" target=\"_blank\" rel=\"noreferrer noopener\">1. The Bimetallic Strip Explained &#8211; Fictiv <\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=Typically%20the%20two%20strips%20or,together%20by%20welding%20or%20soldering.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=Typically%20the%20two%20strips%20or,together%20by%20welding%20or%20soldering.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=Typically%20the%20two%20strips%20or,together%20by%20welding%20or%20soldering.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=Typically%20the%20two%20strips%20or,together%20by%20welding%20or%20soldering.\" target=\"_blank\" rel=\"noreferrer noopener\">www.fictiv.com<\/a><a href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained#:~:text=Typically%20the%20two%20strips%20or,together%20by%20welding%20or%20soldering.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Brazing:<\/strong> This method can also be used to bond the strips, but it requires careful control of the heating process.<\/li>\n\n\n\n<li class=\"\"><strong>Rolling:<\/strong> In some cases, the two metals can be rolled together to form a composite strip.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Strip Configuration:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Flat:<\/strong> The bimetallic strip can be flat for simple applications. \u00a0 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=In%20some%20applications%2C%20the%20bimetal,into%20a%20coil%20for%20compactness.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=In%20some%20applications%2C%20the%20bimetal,into%20a%20coil%20for%20compactness.\" target=\"_blank\" rel=\"noreferrer noopener\">1. Bimetallic strip &#8211; Wikipedia <\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=In%20some%20applications%2C%20the%20bimetal,into%20a%20coil%20for%20compactness.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=In%20some%20applications%2C%20the%20bimetal,into%20a%20coil%20for%20compactness.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=In%20some%20applications%2C%20the%20bimetal,into%20a%20coil%20for%20compactness.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=In%20some%20applications%2C%20the%20bimetal,into%20a%20coil%20for%20compactness.\" target=\"_blank\" rel=\"noreferrer noopener\">en.wikipedia.org<\/a><a href=\"https:\/\/en.wikipedia.org\/wiki\/Bimetallic_strip#:~:text=In%20some%20applications%2C%20the%20bimetal,into%20a%20coil%20for%20compactness.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Curved:<\/strong> For increased sensitivity, the strip can be coiled into a spiral or helical shape.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Protective Coating:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">To prevent corrosion and damage, the bimetallic strip is often coated with a protective layer.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Points:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">The choice of metals and bonding method significantly influences the bimetallic strip&#8217;s performance.<\/li>\n\n\n\n<li class=\"\">The strip&#8217;s shape and dimensions determine its sensitivity and response time.<\/li>\n\n\n\n<li class=\"\">Proper construction is essential to ensure the reliability and accuracy of the temperature measurement.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">By carefully selecting materials and manufacturing processes, bimetallic strips can be designed for various temperature measurement applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained\">Opens in a new window<\/a><a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www.fictiv.com\/articles\/the-bimetallic-strip-explained\">www.fictiv.com<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">bimetallic strip<\/p>\n\n<\/div>\n\t\t<\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-675f4cb6-7ca4-47ae-9ce5-6e5899575e6d\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-2-67b6f550-90c4-42b9-ae83-769272f9e47d\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-67b6f550-90c4-42b9-ae83-769272f9e47d\" style=\"color: #000000; \">Applications of Bimetallic Strips<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-2-67b6f550-90c4-42b9-ae83-769272f9e47d\">\n\n<p class=\"wp-block-paragraph\">Bimetallic strips, due to their simple yet effective principle of operation, find applications in various fields.<\/p>\n\n\n\n<h3 class=\" wp-block-heading\">Common Applications:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Thermostats:<\/strong> In household appliances, HVAC systems, and industrial processes, bimetallic strips are used to control temperature.<\/li>\n\n\n\n<li class=\"\"><strong>Thermometers:<\/strong> Older thermometers often employed bimetallic strips to indicate temperature visually.<\/li>\n\n\n\n<li class=\"\"><strong>Overload Protection:<\/strong> In electrical circuits, bimetallic strips are used in circuit breakers to protect against excessive current.<\/li>\n\n\n\n<li class=\"\"><strong>Fire Alarms:<\/strong> Some fire alarm systems utilize bimetallic strips to trigger alarms based on temperature rise.<\/li>\n\n\n\n<li class=\"\"><strong>Pressure Gauges:<\/strong> In certain types of pressure gauges, bimetallic strips can be used to indicate pressure indirectly based on temperature changes caused by adiabatic compression.<\/li>\n\n\n\n<li class=\"\"><strong>Timers:<\/strong> Simple time-delay mechanisms can be created using bimetallic strips.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">Limitations and Considerations:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Accuracy:<\/strong> Bimetallic strips offer relatively low accuracy compared to modern electronic sensors.<\/li>\n\n\n\n<li class=\"\"><strong>Response Time:<\/strong> Their response to temperature changes can be slower than other methods.<\/li>\n\n\n\n<li class=\"\"><strong>Temperature Range:<\/strong> The usable temperature range is limited by the properties of the metals used.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Despite these limitations, bimetallic strips remain a simple and reliable solution for many temperature-related applications.<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>(a) Describe with the aid of a sketch, how Bi-metallic strips are utilised to measure temperature.(8)(b) State a typical application for this type of device and its main shortcoming.(2)<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"nf_dc_page":"","footnotes":""},"class_list":["post-1991","page","type-page","status-publish","hentry"],"featured_image_src":null,"_links":{"self":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/1991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1991"}],"version-history":[{"count":5,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/1991\/revisions"}],"predecessor-version":[{"id":9833,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/1991\/revisions\/9833"}],"wp:attachment":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}