{"id":8131,"date":"2024-04-15T02:55:35","date_gmt":"2024-04-15T02:55:35","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=8131"},"modified":"2024-04-15T02:55:35","modified_gmt":"2024-04-15T02:55:35","slug":"local-attraction-in-compass-surveying-may-exist-due-to-a-incorrect-levelling-of-the-magnetic-needle-b-loss-of-magnetism-of-the-needle-c-friction-of-the-needle-at-the-pivot-d-presence-of-magnetic-s","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/local-attraction-in-compass-surveying-may-exist-due-to-a-incorrect-levelling-of-the-magnetic-needle-b-loss-of-magnetism-of-the-needle-c-friction-of-the-needle-at-the-pivot-d-presence-of-magnetic-s\/","title":{"rendered":"Local attraction in compass surveying may exist due to A. incorrect levelling of the magnetic needle B. loss of magnetism of the needle C. friction of the needle at the pivot D. presence of magnetic substances near the instrument"},"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_6a99175912617\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    incorrect levelling of the magnetic needle                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    loss of magnetism of the needle                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    friction of the needle at the pivot                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"true\">\r\n                    presence of magnetic substances near the instrument                <\/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. presence of magnetic substances near the instrument.<\/p>\n<p>Local attraction is a phenomenon that occurs when a compass needle is affected by the presence of magnetic substances near the instrument. This can cause the needle to point in a different direction than it would if there were no magnetic substances present.<\/p>\n<p>There are a number of things that can cause local attraction, including:<\/p>\n<ul>\n<li>The presence of iron ore in the ground<\/li>\n<li>The presence of electrical wires or cables<\/li>\n<li>The presence of other magnetic instruments<\/li>\n<\/ul>\n<p>If you are experiencing local attraction, there are a few things you can do to try to correct it:<\/p>\n<ul>\n<li>Move the compass away from any magnetic <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          <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" 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