{"id":3173,"date":"2024-08-06T10:00:31","date_gmt":"2024-08-06T10:00:31","guid":{"rendered":"https:\/\/svestudy.com\/?page_id=3173"},"modified":"2025-05-12T19:20:09","modified_gmt":"2025-05-12T19:20:09","slug":"mde-unit-20-q1-2","status":"publish","type":"page","link":"https:\/\/svestudy.com\/?page_id=3173","title":{"rendered":"MDE Unit 20 Q1"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/svestudy.com\/?page_id=3589\">Quiz<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/svestudy.com\/?page_id=3174\">Next Unit<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"99\" src=\"https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-279-1024x99.png\" alt=\"\" class=\"wp-image-6009\" srcset=\"https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-279-1024x99.png 1024w, https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-279-300x29.png 300w, https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-279-768x74.png 768w, https:\/\/svestudy.com\/wp-content\/uploads\/2024\/08\/image-279.png 1053w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">(a) Describe a gearbox inspection. (6)<br>(b) State, with reasons, TWO gear tooth faults. (4)<\/p>\n\n\n<div class=\"wp-block-ub-content-toggle wp-block-ub-content-toggle-block\" id=\"ub-content-toggle-block-9488c4da-5247-4437-b05e-c2d04e6d027f\" data-mobilecollapse=\"true\" data-desktopcollapse=\"true\" data-preventcollapse=\"false\" data-showonlyone=\"false\">\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-baf7cf25-d2d0-40fc-97aa-bb9e72c55bda\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-0-9488c4da-5247-4437-b05e-c2d04e6d027f\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-9488c4da-5247-4437-b05e-c2d04e6d027f\" style=\"color: #000000; \">Gearbox Inspection for Marine Diesel Drives<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-0-9488c4da-5247-4437-b05e-c2d04e6d027f\">\n\n<p class=\"wp-block-paragraph\">A comprehensive gearbox inspection is crucial for ensuring the reliability and longevity of a marine propulsion system. Here&#8217;s a general outline of the inspection process:<\/p>\n\n\n\n<h3 class=\" wp-block-heading\">External Inspection<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Visual inspection:<\/strong> Check for leaks, cracks, or signs of damage to the gearbox housing.<\/li>\n\n\n\n<li class=\"\"><strong>Couplings:<\/strong> Inspect the coupling between the engine and gearbox for wear, misalignment, or damage.<\/li>\n\n\n\n<li class=\"\"><strong>Cooling system:<\/strong> Verify the condition of the oil cooler and its connections.<\/li>\n\n\n\n<li class=\"\"><strong>Ventilation system:<\/strong> Ensure proper ventilation of the gearbox to prevent moisture buildup.<\/li>\n\n\n\n<li class=\"\"><strong>Mounting:<\/strong> Check for any looseness or damage to the gearbox mounting.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">Internal Inspection<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Oil condition:<\/strong> Check the oil level, color, and consistency for signs of contamination or degradation.<\/li>\n\n\n\n<li class=\"\"><strong>Oil filter condition:<\/strong> Inspect the oil filter for debris or blockages.<\/li>\n\n\n\n<li class=\"\"><strong>Gear teeth:<\/strong> Examine gear teeth for wear, pitting, or chipping.<\/li>\n\n\n\n<li class=\"\"><strong>Bearings:<\/strong> Inspect bearings for wear, damage, or signs of overheating.<\/li>\n\n\n\n<li class=\"\"><strong>Seals:<\/strong> Check seals for leaks or damage.<\/li>\n\n\n\n<li class=\"\"><strong>Magnetic plugs:<\/strong> Inspect magnetic plugs for metal particles.<\/li>\n\n\n\n<li class=\"\"><strong>Shims and clearances:<\/strong> Check shim thicknesses and bearing clearances.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">Operational Checks<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Gearbox noise:<\/strong> Listen for any unusual noises during operation.<\/li>\n\n\n\n<li class=\"\"><strong>Vibration analysis:<\/strong> Conduct vibration analysis to identify potential problems.<\/li>\n\n\n\n<li class=\"\"><strong>Temperature monitoring:<\/strong> Check gearbox operating temperature for any anomalies.<\/li>\n<\/ul>\n\n\n\n<h3 class=\" wp-block-heading\">Documentation<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Record findings:<\/strong> Document all inspection findings, including measurements, photographs, and observations.<\/li>\n\n\n\n<li class=\"\"><strong>Compare with previous inspections:<\/strong> Identify any changes in gearbox condition over time.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> Specific inspection procedures may vary depending on the gearbox type, size, and manufacturer. It&#8217;s essential to follow the manufacturer&#8217;s recommendations and guidelines.<\/p>\n\n<\/div>\n\t\t<\/div>\n\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #f1f1f1; border-top-left-radius: 8px; border-top-right-radius: 8px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; \" id=\"ub-content-toggle-panel-block-ac5076eb-3f79-4f47-994e-f0e0239c15de\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #f1f1f1;\" aria-controls=\"ub-content-toggle-panel-1-9488c4da-5247-4437-b05e-c2d04e6d027f\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-9488c4da-5247-4437-b05e-c2d04e6d027f\" style=\"color: #000000; \">Gear Tooth Faults<\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"false\" class=\"wp-block-ub-content-toggle-accordion-content-wrap ub-hide\" id=\"ub-content-toggle-panel-1-9488c4da-5247-4437-b05e-c2d04e6d027f\">\n\n<p class=\"wp-block-paragraph\">Gear tooth faults are common issues that can significantly impact the performance and lifespan of a gearbox. Here are some of the most common types: \u00a0<a href=\"https:\/\/gearsolutions.com\/departments\/materials-matter-common-gear-failures\/#:~:text=Tooth%2Dbending%20fatigue%20is%20the,ultimate%20tensile%20strength%20of%20the\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/gearsolutions.com\/departments\/materials-matter-common-gear-failures\/#:~:text=Tooth%2Dbending%20fatigue%20is%20the,ultimate%20tensile%20strength%20of%20the\" target=\"_blank\" rel=\"noreferrer noopener\">1. Common Gear Failures | Gear Solutions Magazine Your Resource to the Gear Industry <\/a><a href=\"https:\/\/gearsolutions.com\/departments\/materials-matter-common-gear-failures\/#:~:text=Tooth%2Dbending%20fatigue%20is%20the,ultimate%20tensile%20strength%20of%20the\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/gearsolutions.com\/departments\/materials-matter-common-gear-failures\/#:~:text=Tooth%2Dbending%20fatigue%20is%20the,ultimate%20tensile%20strength%20of%20the\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fatigue-Related Faults:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Pitting:<\/strong> Small pits or cavities form on the gear tooth surface due to repeated stress.<\/li>\n\n\n\n<li class=\"\"><strong>Spalling:<\/strong> Larger pieces of material break off from the gear tooth surface.<\/li>\n\n\n\n<li class=\"\"><strong>Root cracking:<\/strong> Cracks initiate at the root of the tooth and propagate, leading to tooth breakage. \u00a0 <a href=\"https:\/\/www.machinerylubrication.com\/Read\/150\/gear-failures#:~:text=Most%20gear%20tooth%20fatigue%20failures,2.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.machinerylubrication.com\/Read\/150\/gear-failures#:~:text=Most%20gear%20tooth%20fatigue%20failures,2.\" target=\"_blank\" rel=\"noreferrer noopener\">1. How to Analyze Gear Failures &#8211; Machinery Lubrication <\/a><a href=\"https:\/\/www.machinerylubrication.com\/Read\/150\/gear-failures#:~:text=Most%20gear%20tooth%20fatigue%20failures,2.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.machinerylubrication.com\/Read\/150\/gear-failures#:~:text=Most%20gear%20tooth%20fatigue%20failures,2.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.machinerylubrication.com\/Read\/150\/gear-failures#:~:text=Most%20gear%20tooth%20fatigue%20failures,2.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.machinerylubrication.com\/Read\/150\/gear-failures#:~:text=Most%20gear%20tooth%20fatigue%20failures,2.\" target=\"_blank\" rel=\"noreferrer noopener\">www.machinerylubrication.com<\/a><a href=\"https:\/\/www.machinerylubrication.com\/Read\/150\/gear-failures#:~:text=Most%20gear%20tooth%20fatigue%20failures,2.\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Wear-Related Faults:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Abrasive wear:<\/strong> Gradual removal of material due to abrasive particles.<\/li>\n\n\n\n<li class=\"\"><strong>Adhesive wear:<\/strong> Transfer of material from one gear tooth to another, resulting in scoring. \u00a0 <a href=\"https:\/\/fg-machine.com\/blog\/4-types-of-gear-failure-to-watch-out-for-2\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/fg-machine.com\/blog\/4-types-of-gear-failure-to-watch-out-for-2\/\" target=\"_blank\" rel=\"noreferrer noopener\">1. 4 Types of Gear Failure to Watch Out For <\/a><a href=\"https:\/\/fg-machine.com\/blog\/4-types-of-gear-failure-to-watch-out-for-2\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/fg-machine.com\/blog\/4-types-of-gear-failure-to-watch-out-for-2\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/fg-machine.com\/blog\/4-types-of-gear-failure-to-watch-out-for-2\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/fg-machine.com\/blog\/4-types-of-gear-failure-to-watch-out-for-2\/\" target=\"_blank\" rel=\"noreferrer noopener\">fg-machine.com<\/a><a href=\"https:\/\/fg-machine.com\/blog\/4-types-of-gear-failure-to-watch-out-for-2\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/li>\n\n\n\n<li class=\"\"><strong>Erosive wear:<\/strong> Material loss due to the impact of high-velocity fluids.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Other Faults:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Tooth breakage:<\/strong> Complete or partial breakage of a gear tooth.<\/li>\n\n\n\n<li class=\"\"><strong>Plastic deformation:<\/strong> Excessive loading leading to permanent deformation of the tooth.<\/li>\n\n\n\n<li class=\"\"><strong>Scoring:<\/strong> Deep grooves or scratches on the gear tooth surface.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Identifying these faults during regular inspections is crucial for preventing catastrophic gearbox failures.<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Quiz Next Unit (a) Describe a gearbox inspection. (6)(b) State, with reasons, TWO gear tooth faults. (4)<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"nf_dc_page":"","footnotes":""},"class_list":["post-3173","page","type-page","status-publish","hentry"],"featured_image_src":null,"_links":{"self":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/3173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3173"}],"version-history":[{"count":4,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/3173\/revisions"}],"predecessor-version":[{"id":9732,"href":"https:\/\/svestudy.com\/index.php?rest_route=\/wp\/v2\/pages\/3173\/revisions\/9732"}],"wp:attachment":[{"href":"https:\/\/svestudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}