{"id":23238,"date":"2024-04-15T06:31:03","date_gmt":"2024-04-15T06:31:03","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=23238"},"modified":"2024-04-15T06:31:03","modified_gmt":"2024-04-15T06:31:03","slug":"which-of-the-following-could-be-used-as-fuel-in-propellant-or-rockets-a-liquid-hydrogen-liquid-nitrogen-b-liquid-oxygen-liquid-argon-c-liquid-nitrogen-liquid-oxygen-d-liquid-hydrogen-liq","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-could-be-used-as-fuel-in-propellant-or-rockets-a-liquid-hydrogen-liquid-nitrogen-b-liquid-oxygen-liquid-argon-c-liquid-nitrogen-liquid-oxygen-d-liquid-hydrogen-liq\/","title":{"rendered":"Which of the following could be used as fuel in propellant or rockets ? A. Liquid Hydrogen + Liquid Nitrogen B. Liquid Oxygen + Liquid Argon C. Liquid Nitrogen + Liquid Oxygen D. Liquid Hydrogen + Liquid Oxygen"},"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_6ab1f58c8772f\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Liquid Hydrogen + Liquid Nitrogen                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Liquid Oxygen + Liquid Argon                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Liquid Nitrogen + Liquid Oxygen                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"true\">\r\n                    Liquid Hydrogen + Liquid Oxygen                <\/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 D. Liquid Hydrogen + Liquid Oxygen.<\/p>\n<p>Liquid hydrogen and liquid oxygen are the most common propellants used in rockets. They are both highly efficient and produce a lot of thrust. Liquid hydrogen has the highest specific impulse of any rocket propellant, meaning that it produces the most thrust per unit of mass. Liquid oxygen is a very strong oxidizer, meaning that it can react with a wide variety of fuels to produce a lot of energy.<\/p>\n<p>Liquid nitrogen and liquid argon are not commonly used as rocket propellants. Liquid nitrogen <div class=\"youtube-subscribe-container\">\r\n    <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>     <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> is a relatively weak oxidizer, and liquid argon is not an oxidizer at all. Therefore, they do not produce as much thrust as liquid hydrogen and liquid oxygen.<\/p>\n<p>In addition, liquid nitrogen and liquid argon are both much heavier than liquid hydrogen and liquid oxygen. This means that they require more fuel to lift into orbit, which reduces the payload capacity of the rocket.<\/p>\n<p>For these reasons, liquid hydrogen and liquid oxygen are the most common propellants used in rockets.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join Our Telegram Channel 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":[19],"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>Which of the following could be used as fuel in propellant or rockets ? A. Liquid Hydrogen + Liquid Nitrogen B. 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