{"id":6635,"date":"2024-04-15T02:31:51","date_gmt":"2024-04-15T02:31:51","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=6635"},"modified":"2024-04-15T02:31:51","modified_gmt":"2024-04-15T02:31:51","slug":"for-the-manufacture-of-portland-cement-the-proportions-of-raw-materials-used-are-a-lime-63-silica-22-other-ingredients-15-b-lime-22-silica-63-other-ingredients-15-c-silica-40-lime-40","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/for-the-manufacture-of-portland-cement-the-proportions-of-raw-materials-used-are-a-lime-63-silica-22-other-ingredients-15-b-lime-22-silica-63-other-ingredients-15-c-silica-40-lime-40\/","title":{"rendered":"For the manufacture of Portland cement, the proportions of raw materials used, are A. Lime 63% ; silica 22% ; other ingredients 15% B. Lime 22% ; silica 63% ; other ingredients 15% C. Silica 40% ; lime 40% ; other ingredients 20% D. Silica 70% ; lime 20% ; other ingredients 10%"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a9a017599771\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    Lime 63% ; silica 22% ; other ingredients 15%                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Lime 22% ; silica 63% ; other ingredients 15%                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Silica 40% ; lime 40% ; other ingredients 20%                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Silica 70% ; lime 20% ; other ingredients 10%                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is: <strong>A. Lime 63% ; silica 22% ; other ingredients 15%<\/strong><\/p>\n<p>Portland cement is a hydraulic cement, which means that it sets and hardens under water. It is the most common type of cement in general use around the world. It is a basic ingredient of concrete, mortar, and grout.<\/p>\n<p>Portland cement is made by heating a mixture of limestone, clay, sand, and iron ore to a very high temperature. This produces a clinker, which is then ground into a fine powder. The powder is then mixed with gypsum and other additives to produce Portland cement.<\/p>\n<p>The proportions of raw materials used to make Portland cement vary depending on the type of cement being produced. However, <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> the most common proportions are:<\/p>\n<ul>\n<li>Lime: 63%<\/li>\n<li>Silica: 22%<\/li>\n<li>Other ingredients: 15%<\/li>\n<\/ul>\n<p>The other ingredients can include iron oxide, alumina, magnesia, and sulfur.<\/p>\n<p>The proportions of raw materials used to make Portland cement <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> are important because they affect the properties of the cement. For example, the amount of silica in the cement affects its strength. The amount of iron oxide in the cement affects its color.<\/p>\n<p>The manufacture of Portland cement is a complex process that requires a high level of technical expertise. The raw materials must be carefully selected and blended to ensure that the final product meets the required specifications. The manufacturing process must also be carefully controlled to ensure that the cement is produced in a consistent manner.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[644],"tags":[],"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>For the manufacture of Portland cement, the proportions of raw materials used, are A. Lime 63% ; silica 22% ; other ingredients 15% B. Lime 22% ; silica 63% ; other ingredients 15% C. Silica 40% ; lime 40% ; other ingredients 20% D. 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