{"id":8372,"date":"2024-04-15T02:59:31","date_gmt":"2024-04-15T02:59:31","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=8372"},"modified":"2024-04-15T02:59:31","modified_gmt":"2024-04-15T02:59:31","slug":"a-tractor-whose-weight-is-20-tonnes-has-a-drawbar-pull-of-2500-kg-when-operated-on-a-level-road-having-a-rolling-resistance-of-30-kg-per-tonne-if-this-tractor-is-operated-on-a-level-road-having-a-ro","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-tractor-whose-weight-is-20-tonnes-has-a-drawbar-pull-of-2500-kg-when-operated-on-a-level-road-having-a-rolling-resistance-of-30-kg-per-tonne-if-this-tractor-is-operated-on-a-level-road-having-a-ro\/","title":{"rendered":"A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will A. Reduce by 200 kg B. Increase by 200 kg C. Increase by 250 kg D. Reduce by 250 kg"},"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_6a991748c7dcd\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    Reduce by 200 kg                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Increase by 200 kg                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Increase by 250 kg                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Reduce by 250 kg                <\/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 A. Reduce by 200 kg.<\/p>\n<p>The drawbar pull of a tractor is the force that it can exert on a trailer or other load. It is equal to the weight of the tractor minus the rolling resistance of the road. The rolling resistance is the force that opposes the motion of the tractor due to the friction between the tires and the road.<\/p>\n<p>In this case, the tractor has a weight of 20 tonnes and a drawbar pull of 2500 kg. The rolling resistance of the road is 30 kg per tonne, so the total rolling resistance is 600 kg. This means that the net force that the tractor can exert on a trailer is 2500 &#8211; 600 = 1900 kg.<\/p>\n<p>If the rolling resistance of the road is increased to 40 kg per tonne, the total rolling resistance will be 800 kg. This means that the net force that the tractor can exert on a trailer will be 2500 &#8211; 800 = 1700 kg.<\/p>\n<p>Therefore, the drawbar pull of the tractor will reduce by 200 kg when the rolling resistance of the road is increased from 30 kg per tonne to 40 kg per tonne.<\/p>\n<p>Option B is incorrect because the drawbar pull of the tractor will decrease, not increase.<\/p>\n<p>Option C is <div <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> 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> incorrect because the drawbar pull of the tractor will decrease by 200 kg, not 250 kg.<\/p>\n<p>Option D is incorrect because the drawbar pull of the tractor will decrease, not increase.<\/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":[655],"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>A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance of 40 kg per tonne, then the drawbar pull of the tractor will A. Reduce by 200 kg B. Increase by 200 kg C. Increase by 250 kg D. Reduce by 250 kg<\/title>\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\/a-tractor-whose-weight-is-20-tonnes-has-a-drawbar-pull-of-2500-kg-when-operated-on-a-level-road-having-a-rolling-resistance-of-30-kg-per-tonne-if-this-tractor-is-operated-on-a-level-road-having-a-ro\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. 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