{"id":18691,"date":"2024-04-15T05:29:34","date_gmt":"2024-04-15T05:29:34","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=18691"},"modified":"2024-04-15T05:29:34","modified_gmt":"2024-04-15T05:29:34","slug":"a-disadvantage-of-numerical-control-nc-is-a-the-computer-is-not-reliable-b-the-tape-and-tape-reader-are-not-reliable-c-one-operator-is-needed-for-each-machine-d-the-machine-tool-can-easily-ove","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-disadvantage-of-numerical-control-nc-is-a-the-computer-is-not-reliable-b-the-tape-and-tape-reader-are-not-reliable-c-one-operator-is-needed-for-each-machine-d-the-machine-tool-can-easily-ove\/","title":{"rendered":"A disadvantage of Numerical Control (NC) is: A. the computer is not reliable B. the tape and tape reader are not reliable C. one operator is needed for each machine. D. the machine tool can easily overheat E. None of the above"},"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_6a9be660d4230\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    the computer is not reliable                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    the tape and tape reader are not reliable                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    one operator is needed for each machine.                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    the machine tool can easily overheat E. None of the above                <\/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: C. one operator is needed for each machine.<\/p>\n<p>Numerical control (NC) is the automation of machine tools that are operated by numerical control (NC) instructions. An NC machine tool is a machine tool that is controlled by a computer. The computer reads a program of instructions that tells the machine tool how to move and what to do. NC machines are used to make a variety of products, including parts for cars, airplanes, and appliances.<\/p>\n<p>One disadvantage of NC machines is that one operator is needed for each machine. This is <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> because NC machines are complex and require a lot of attention. The operator must monitor the machine and make sure that it is <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> operating correctly. If the machine malfunctions, the operator must be able to diagnose the problem and correct it.<\/p>\n<p>The other options are not disadvantages of NC machines. Option A is incorrect because computers are very reliable. Option B is incorrect because tape and tape readers are also very reliable. Option D is incorrect because machine tools are designed to withstand high temperatures. Option E is the correct answer because it is the only option that is a disadvantage of NC machines.<\/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":[680],"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 disadvantage of Numerical Control (NC) is: A. the computer is not reliable B. the tape and tape reader are not reliable C. one operator is needed for each machine. D. the machine tool can easily overheat E. 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D. the machine tool can easily overheat E. None of the above","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/a-disadvantage-of-numerical-control-nc-is-a-the-computer-is-not-reliable-b-the-tape-and-tape-reader-are-not-reliable-c-one-operator-is-needed-for-each-machine-d-the-machine-tool-can-easily-ove\/","og_locale":"en_US","og_type":"article","og_title":"A disadvantage of Numerical Control (NC) is: A. the computer is not reliable B. the tape and tape reader are not reliable C. one operator is needed for each machine. D. the machine tool can easily overheat E. 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