{"id":219295,"date":"2025-05-26T02:47:49","date_gmt":"2025-05-26T02:47:49","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=219295"},"modified":"2025-05-26T02:47:51","modified_gmt":"2025-05-26T02:47:51","slug":"person-would-like-to-install-a-device-in-his-house-which-turns-a-light-on-when-the-pressure-is-between-0-75-and-1-atmospheres-atm-and-sounds-a-warning-signal-when-the-outside-pressure-is-0-75-atm-o","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/26\/person-would-like-to-install-a-device-in-his-house-which-turns-a-light-on-when-the-pressure-is-between-0-75-and-1-atmospheres-atm-and-sounds-a-warning-signal-when-the-outside-pressure-is-0-75-atm-o\/","title":{"rendered":"person would like to install a device in his house which turns a light on when the pressure is between 0.75 and 1 atmospheres (ATM), and sounds a warning signal when the outside pressure is 0.75 ATM or below."},"content":{"rendered":"\n<p>person would like to install a device in his house which turns a light on when the pressure is between 0.75 and 1 atmospheres (ATM), and sounds a warning signal when the outside pressure is 0.75 ATM or below. The light and the sound will never go off simultaneously. Write a solution to this problem.<br>(Hint: Use the enter statement to input the present outside pressure. Print out what should happen, instead of actually turning on the light and the sign<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p><strong>Solution (Python Code):<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Enter the current outside pressure\npressure = float(input(\"Enter the current outside pressure in ATM: \"))\n\n# Check the pressure and determine the appropriate action\nif 0.75 &lt; pressure &lt;= 1.0:\n    print(\"Turn ON the light.\")\nelif pressure &lt;= 0.75:\n    print(\"Sound the WARNING signal.\")\nelse:\n    print(\"No action required.\")\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Explanation<\/strong><\/p>\n\n\n\n<p>This problem involves designing a simple decision-based system that reacts to different ranges of atmospheric pressure. The user wants to install a device in their house that behaves in the following way:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Turn on a light<\/strong> when the outside pressure is <strong>between 0.75 and 1.0 ATM<\/strong>, not including 0.75.<\/li>\n\n\n\n<li><strong>Sound a warning signal<\/strong> when the outside pressure is <strong>0.75 ATM or below<\/strong>.<\/li>\n\n\n\n<li><strong>Never perform both actions at the same time.<\/strong><\/li>\n\n\n\n<li><strong>Do nothing<\/strong> when the pressure is <strong>above 1.0 ATM<\/strong>.<\/li>\n<\/ol>\n\n\n\n<p>The Python solution uses an <code>if-elif-else<\/code> structure to implement this logic. First, the program uses <code>input()<\/code> to prompt the user to enter the current pressure value, which is then converted to a floating-point number for comparison.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The condition <code>0.75 &lt; pressure &lt;= 1.0<\/code> checks if the pressure is within the safe operating range. If so, the system prints a message indicating the light should be turned on.<\/li>\n\n\n\n<li>The condition <code>pressure &lt;= 0.75<\/code> checks if the pressure is low enough to be considered dangerous. In that case, it prints a message to sound the warning signal.<\/li>\n\n\n\n<li>The <code>else<\/code> clause covers all other cases, such as pressures above 1.0 ATM, where no action is needed.<\/li>\n<\/ul>\n\n\n\n<p>This ensures that <strong>only one response occurs at any time<\/strong> and the behavior is consistent with the safety and alert requirements. The system could easily be connected to real sensors and actuators in a practical embedded system, but for now, this program simply prints the action to be taken, making it ideal for simulation or educational purposes.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/05\/learnexams-banner4-13.jpeg\" alt=\"\" class=\"wp-image-219296\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>person would like to install a device in his house which turns a light on when the pressure is between 0.75 and 1 atmospheres (ATM), and sounds a warning signal when the outside pressure is 0.75 ATM or below. The light and the sound will never go off simultaneously. Write a solution to this problem.(Hint: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-219295","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/219295","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=219295"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/219295\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=219295"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=219295"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=219295"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}