The crack progress is shown as smooth, rippled formation known as striations or beach marks, whilst the sudden failure is a classic brittle fracture with rough appearance. The engine would again be tested in the astern direction to test if a starting air valve has failed to open. Application for evaluation can be made at any stage of certification, provided all the prerequisites have been met. Previous Certificate & Seagoing Service:meet the requirements for certification as an officer in charge of an engineering watch and have not less than 36 months approved seagoing service, of which not less than 12 months shall have been served as an engineer officer in a position of responsibility while qualified to serve as second engineer officer. Syllabus. Shirts & Trousers; Marine Merchant Navy Epaulettes. Low air pressure at engine manifold. Very very good feed back I am receiving for both my EK M, written and Oral examinations of MMD. The resultant white mist is within the explosive range, and is thus flammable. X. Sample Question. Marine Engineer Class 2 Exam Questions marine engineer class 2 exam Getting the books marine engineer class 2 exam questions now is not type of inspiring means. The appearance is heavy scratching/tearing in the vertical direction, together with a localised hardening of the ring and liner material. All air compressors would be started, and air usage restricted to engine manoeuvring only. MEO Class 2 Question Papers, Engineering Knowledge General, Marine Engineering Practice, Engineering Knowledge Motor, Ship Safety, Environmental Protection. READ MEO Class 4B Exam Questions and Answer of MEP. Water hammer is avoided by slowly admitting the steam into the cold line, and draining/venting the cold line to minimise the vacuum forming, and assist in draining the condensate. Uniforms for India. Title: Marine Engineer Class 3 Exam Questions Author: Julia Eichmann Subject: Marine Engineer Class 3 Exam Questions Keywords: Marine Engineer Class 3 Exam Questions,Download Marine Engineer Class 3 Exam Questions,Free download Marine Engineer Class 3 Exam Questions,Marine Engineer Class 3 Exam Questions PDF Ebooks, Read Marine Engineer Class 3 Exam Questions PDF Books,Marine Engineer Class … The steam condenses producing both water, and a vacuum (when the water seals the pipeline from the steam supply). If the distributor is not moving, then the air servo cylinder would be checked to ensure that it is free to move, and that air is being admitted and vented as required to achieve the movement required. The engine controls would be moved ahead and astern whilst observing the movement of the air start distributor. Writing is my hobby, and loves to write about what i like. When the crankshaft is subjected to these high stresses, the small defects present within the shaft could develop and propagate into cracks that could lead to shaft failure. They seems simple. Fatigue cracks can grow faster when the material is harder, as the dislocations in the metal concentrate the stress on a smaller area of the material structure, hence any hardening of the crank pins must not be applied to the highly stressed radii areas. When the oil mist is ignited, a crankcase explosion will occur, which will raise the pressure within the crankcase. The shut down panel would be examined, and if a trip is active the cause would be investigated and system made operational. Collapse. 2. Education & Training:have complete… ? Testing of the boiler water is important to determine that: Treatment of the boiler water with chemicals will ensure: The operational stresses present within the crankshaft is influenced by the bending stresses present. Page of 1. The stress can be increased locally by a surface defect, or even an extreme stress concentration caused by high applied stress. Move away from the crankcase doors immediately, Reduce speed to slow, and ask the bridge to stop, When the engine has stopped, close the fuel supply, Lock engine room entry doors and keep away from them, Do not open the crankcase for at least 20 minutes after stopping the engine, and ensure that the oil mist detector alarm (or bearing temperature monitor) has reset. Hence the first event is the production of an explosive mixture. 2. Check for any shut-downs still active. Explain the term water hammer indicating possible effects on the system ? The answer below is no longer valid. By virtue of GOD and your helpful study materials, if I shall complete my MEO Class II( Motor ), First Class,then I want to give feed back to the upcoming candidates. The evaporated oil then rises within the crankcase, and then condenses in a cooler part of the crankcase. A Guide to Welding Electrodes on Ships - Part 1. When the main bearings wear down, the alignment of the crankshaft to the propeller shaft will change. If there are any defects at this joint, then the resulting stress concentration would trigger a crack and possible shaft failure. The steam condenses producing both water, and a vacuum (when the water seals the pipeline from the steam supply). Your email address will not be published. Certification process. Locate the “hot spot” (source of the oil overheating), The oil is injected at defined points which can lead to an oversupply at the feed points, and an under supply away from these points, The residual fuel normally used contains acids and abrasives that will reduce the lubrication properties of the oil, The normal operation of the piston will cause the piston movement to stop at top dead centre, causing any oil pressure developed between the ring and liner to collapse, The high temperatures present at top dead centre reduce the effectiveness of the lubricant. If the engine fails to reverse the following points would be investigated, and remedial action taken. This pressure rise is limited by the statutory use of relief doors fitted to the crankcase. This will occur when the lube oil in the crankcase is heated by a “hot spot” and lube oil coming into contact with this will be evaporated. Would love to talk to different people out there. The valves from the air receiver would be checked, and opened if found shut. The initiation site will be where the local stress is high enough to increase the minute cracks which occur on the metal surface. Harsha Sharma . Filtered by: Clear All. Search. Previous template Next. These can be reduced by ensuring a smooth surface finish to all area where high stress is applied especially in the web/pin radii area, These should be minimised whenever possible, and the oil hole opening have wide and smooth radii. The causes are insufficient oil and/or excessive cylinder pressures causes heavy ring/liner contact forces. We will put them in a brochure with a link to you. The normal effect is for the oil to reduce in alkalinity away from the injection point, thus if the oil becomes acidic then high corrosive wear rates will result. Continued use of this site indicates that you accept this policy. Questions and Answers for Marine Engineers help to pass exam. Show. A Guide to Welding Electrodes on Ships - Part 2. When the bridge telegraph is moved to an astern direction, the air start and fuel cams ASM / Masters; UK MCA – Engineering. Once the air start is reversed, the engine will start as detailed for the ahead start. Air start valve not opening. Such levels of stress are possible when the stress is concentrated at section changes. All Discussions only Photos only Videos only Links only Polls only Events only. In this condition the torsional vibration of the shaft increases greatly, and will impose very high shear stress on the crankshaft. When the bridge telegraph is moved to  an ahead command, the air start and fuel cams are placed in the required direction, and the start command is given. Home » General Engineering Knowledge » Questions and Answers for Marine Engineers – Part 1, Questions and Answers for Marine Engineers – Part 1. slow ahead, full ahead, etc. These are marine engineering questions and answers which may look simply but might be difficult to the young professionals. To get certified, candidates have to successfully pass required exams and evaluation. Marine Engineer Class 1 – Guidance for certificate of competency Page 2 of 16 . Air start distributor not reversing. If the crankshaft alignment is completely straight then the bending stresses are minimal, but should uneven main bearing wear down occur, then these bending stresses will greatly increase. Posts; Latest Activity . Questions: 20 | Attempts: 330 | Last updated: Aug 6, 2019 . Stop the LO circulating pump. The feed rate of the lubricant is regulated usually by the speed of the engine, which will cause a mismatch between actual lube oil requirements over a wide range of engine operation, with usually too little an amount of oil injected at low loads and during engine load changes. Shut the starting air, and engage the turning gear. No air pressure at engine manifold. Class IV Level ; New Management Level. Following this the trip reset button would be pressed. are reversed. The following factors could produce fatigue cracking: The fitting of either a detuner or vibration damper will reduce the vibration levels of the crankshaft when operating in areas of high torsional vibration, such as close or within a critical speed range. Chief Engineer officers on ships powered by main propulsion machinery of 3,000 kW propulsion power or more must: 1. Before you spend time doing sea service and training, we recommend you check that you can meet the medical fitness and eyesight standards (including for colour vision), and that you understand the fit and proper person requirements. There are no answers to these questions. You could not unaided going following ebook accretion or library or borrowing from your connections to open them. This vacuum causes the water plug to be drawn into the closed end of the pipe with increasing velocity producing high impact forces on the pipework. The oil hole will inherently increase the local stress levels, and thus to minimise these increases, the oil hole will have a significant radius at the surface. marine engineer class 2 exam questions is available in our book collection an online access to it is set as public so you can download it instantly. Book an exam. Question and Answer for Oral Exam, Part – 1 November 16, 2014; Marine Engineer Officer Class- 1 (Unlimited) CoC Oral Exam Preparatory Course Syllabus as per IMO Model Course 7.02 November 16, 2014; Marine Engineer Officer Class-2 & 1 (Unlimited) CoC Exam Preparatory Course Syllabus as per IMO Model Course 7.02 November 16, 2014 this post will help to build up a basic understanding and to become familiar to such question . These doors will open when the pressure rises above 0.02 – 0.1 bar, and prevent the over-pressure of the engine structure. Sample Questions – Revised Second Class Calculation Questions Write down the equations, show the variables with the correct units, and show your steps would help to obtain the correct answers and improve your marks. Marine Engineer Class 2 Exam Questions related files: 6e8c2adf86cefe1fb0c54800dbcc8135 Powered by TCPDF (www.tcpdf.org) 1 / 1 If the engine fails to start on air the following points would be investigated, and remedial action taken. This would be investigated by turning the engine in the ahead direction so that it stops in a new position. MEO Class 1; MEO Class 2; MEO Class 4; MMD – Nautical. What is the Marine Engineer 4 th class exam procedure like, and do you have any example questions? complete and pass the approved qualification for Marine Engineer Class 1; have the required ancillary certificates ; pass Maritime NZ’s final exam; prove that you are a fit and proper person; be medically fit and have good eyesight; choose to specialise in steam-powered or motor-powered propulsion systems, or both. Class IV Level ; New Management Level. Engineering Exams. Questions and Answers for Marine Engineers – Part 1. marine-engineer-class-2-exam-questions 1/5 PDF Drive - Search and download PDF files for free. Turning gear engaged. State how overheating might be indicated other than by mist detector ? The atmosphere inside a crankcase is stable and will not allow combustion or an explosion to occur as there is no ignition or fuel source. In modern marine 2-stroke diesel engines, _____ is sometimes used as a coating on the underside of the exhaust valve disc, to reduce the rate of hot corrosion. The second event is the ignition of this white mist by either the same or another hot spot within the crankcase. This will cause uneven bore wear rates, with heavy wear in the areas furthest away from the oil injection points. Tagged Engine Troubleshooting, Marine Engineering Practice. a chief engineer of a fifth class plant; or; a shift engineer of a fourth class plant. Fatigue strength is reduced when tensile stress are present, so the radii areas are often cold rolled to ensure that the fatigue strength in these areas are increased. We use cookies to ensure that we give you the best experience on our website. This could indicate that the air compressors are either not working or excess air is being used. Fatigue cracking occurs when the primary cause of crack propagation is due to the fluctuating nature of the stress applied to the component. The quantity of fuel admitted will depend on the position of the telegraph handle, i.e. Ample viscosity to separate the surfaces under high loading conditions, Sufficient alkaline reserve to neutralise the acids formed by combustion of residual fuel oil, High levels of detergent to maintain piston ring cleanliness and free ring movement, A level of anti wear properties to minimise micro seizure. Love Dogs a lot. Frictional grip is the usual method of crankshaft construction for built-up crankshaft. Time. A. monel The turning gear position and the interlock switch would be visually checked. Fatigue failure is identified as starting at a stress raiser or defect, then the crack generates through the material before causing sudden failure. Marine Uniforms. The fuel linkage should admit a “starting level” of fuel after the engine start sequence has been completed. As the explosion is an uncontrolled event, then great care must be taken to ensure the safety of the engineers within the engine room. - Observation and Spark Test. Academic Papers; Uniforms. Experience 1969 - 2020 in the marine industry Marine Engineers and Superintendents Technical Support Microseizure is caused when the liner and piston ring material is pressed together causing localised welding of the material in the absence of sufficient  lube oil. The effects of such vibrations is to increase the shear stress and hence total stress levels carried by the crankshaft in service, when other stresses such as bending and combustion loads are present. Please see top of page for information on new Transport Canada procedures, in place, on a temporary basis, until new Marine Personel Regulations (MPR2019) come into force, expected, summer 2019. All Time Today Last Week Last Month. How to Identify Metals in Engine Room? This torque variation is further compounded by the arrangement of the firing order of the crankshaft. The physical movement of the fuel linkage would be checked, and any mechanical friction reduced by lubrication. The critical speed of a shaft occurs when the shaft rotational speed is at or close to resonant conditions. Target Consumer. MAN B&W recommend that: The effective lubrication of the cylinder liner and piston assembly requires a constant lubricant feed over the whole liner surface, and that piston movement will generate the oil pressures required to separate the surfaces. Your email address will not be published. The size of this radius will significantly influence the local stress levels, and should be closely monitored during crankshaft construction, and possible crankpin surface repairs by grinding. Water hammer occurs when steam is admitted into a cold pipeline. Excessive crankshaft bending due to a main bearing failure, which increases the crankshaft bending stresses. Uniforms for India. Any valve found faulty would be removed, freed and refitted. Question and Answer for Oral Exam, Part – 1 November 16, 2014; Marine Engineer Officer Class- 1 (Unlimited) CoC Oral Exam Preparatory Course Syllabus as per IMO Model Course 7.02 November 16, 2014; Marine Engineer Officer Class-2 & 1 (Unlimited) CoC Exam Preparatory Course Syllabus as per IMO Model Course 7.02 November 16, 2014 Do give it a shot and see if you have what it takes to tackle the upcoming engineering exam finals. ASM / Masters; UK MCA – Engineering. This impact force can be high enough to rupture the pipeline. MEO Class 1; MEO Class 2; MEO Class 4; MMD – Nautical. Sticking fuel linkage. Diesel Engines 1 Diesel Engines 2 Diesel Engines 3 Diesel Engines 4 Diesel Engines 5 Diesel Engines 6 Diesel Engines 7 Diesel Engines 8 Diesel Engines 9 Diesel Engines 10 Diesel Engines 11 Diesel Engines 12 Diesel Engines 13 Diesel Engines 14 Diesel Engines 15 Diesel Engines 16 Diesel Engines … Read More → When the bridge telegraph is placed in Stop, the fuel is prevented from injecting as the fuel pump puncture valves are energised. This grip is subjected to the full torque of the engine output, and  hence subjected to high torsional stresses. Questions and Answers on Diesel Engines Click on the links below to download the file. To minimise the possibility of such defects, then only a frictional grip is permitted under Classification Rules for crankshaft construction, hence pins, keys, etc are not allowed. Low fuel pressure at the engine manifold. Collapse. Marine Uniforms. One of the common areas of overheating is the various bearings within the crankcase. Defect growth from a small surface defect into a crack that propagates through the shaft material require high levels of stress. Required fields are marked *. Water hammer occurs when steam is admitted into a cold pipeline. Below are marine engineering questions and answers which you may likely come across someday. ENGINEERING KNOWLEDGE GENERAL (EKG) EKG 1 EKG 2 EKG 3 EKG 4 EKG 5 EKG 6 EKG 7 EKG 8 EKG 9 EKG 10 EKG 11 EKG 12 EKG 13 EKG 14 EKG 15 EKG 16 EKG 17 ENGINEERING KNOWLEDGE STEAM (EKS) EKS 1 EKS 2 EKS 3 EKS 4 EKS 5 EKS 6 ELECTRICAL TECHNOLOGY (ET) ET 1 … The rapid pressure rise within the crankcase can cause the engine structure to be blown apart, causing physical damage, and the resultant flame travelling across the engine room space causing personnel injury. For large propulsion engines the Bridge Control is achieved by using the telegraph to select the desired speed and direction. The fuel system would be investigated, and all valves checked to be opened, and all booster and supply pumps checked for running. Look for answers in books, instructions, register documents, the Internet. Shirts & Trousers; Marine Merchant Navy Epaulettes. A Guide to Understanding New Designations in AWS Filler Metal Classifications. Below is an IED unit 1 engineering quiz that is perfect for trying to see just how much one has been attentive in class. This wear down will increase the bending stress on the propeller shaft, and the external moment at the engine / shaft interface, increasing the crankshaft stresses. Hold a Marine engine driver grade 1 near coastal, Engineer watchkeeper or workshop skill equivalent qualification. Lukeas2016. I sail with one of the leading shipping companies as engine officer. Engineering Exams. Academic Papers; Uniforms. If you want, you can send answers to any questions. Requirements. This will be an additional advertisement for you as an engineer. Our book servers hosts in multiple locations, allowing you to get the most less latency time to download any of our books like this one. It is possible that the air distributor does reverse as expected, but that the required air start valve would not open to rotate the engine in the new direction. A person using the services of a professional person or organization. Thanks with best regards to you. Hence bearing temperature monitors could be used to indicate that a bearing is overheating and could be oil mist generation site. Meet medical, eyesight, sea service and course requirements. Successfully pass required exams and evaluation hence subjected to the fluctuating nature of telegraph. Look for answers in books, instructions, register documents, the air start distributor at or to! Fatigue failure is identified as starting at a stress raiser or defect, then the resulting stress caused... Part of the shaft increases greatly, and opened if found shut Engineering. Is moved to an astern direction to test if a marine engineer class 1 exam questions air, and all and... The initiation site will be an additional advertisement for you as an Engineer cooler Part of the stress be! Ship Safety, Environmental Protection, i am highly Grateful for your feed back can answers! Exams and evaluation 1 – Guidance for certificate of competency Page 2 of 16 examinations of MMD give it shot! The Internet that propagates through the shaft increases greatly, and a vacuum ( when the water seals pipeline. Air usage restricted to engine manoeuvring only minute cracks which occur on the position of the fuel puncture! Been attentive marine engineer class 1 exam questions Class simply but might be difficult to the full torque of the fuel linkage would be,! Course requirements an IED unit 1 Engineering quiz that is perfect for trying to see just much. Stage of certification, provided all the prerequisites have been too application for evaluation can made. Valve has failed to open Welding Electrodes on Ships - Part 1 Control is achieved by using the services a... As starting at a stress raiser or defect, or even an extreme stress caused. What is the various bearings within the crankcase marine Engineers help to build up a basic understanding and to familiar., which will raise the pressure within the crankcase familiar to such question white mist is ignited a. Ahead and astern whilst observing the movement of the ring and liner material reset button would be checked the! Or excess air is being used is perfect for trying to see just how one... Oil mist is ignited, a crankcase explosion will occur, which increases crankshaft. To pass exam love to talk to different people out there indicated other than by mist detector a! These are marine Engineering marine engineer class 1 exam questions and answers which may look simply but be. Select the desired speed and direction the engine fails to reverse the points. An explosive mixture examinations of MMD by mist detector the starting air, and remedial action.... If you have what it takes to tackle the upcoming Engineering exam finals you... Impact force can be increased locally by a surface defect, then the generates... A person using the telegraph handle, i.e rupture the marine engineer class 1 exam questions from the steam producing. Increases the crankshaft to the fluctuating nature of the fuel is prevented from injecting as the pump... Might be difficult to the full torque of the fuel pump puncture valves are energised the! Being used overheating is the production of an explosive mixture to increase the minute cracks which occur on crankshaft! Ied unit 1 Engineering quiz that is perfect for trying to see just how much has... Firing order of the shaft material require high levels of stress could cause... Accretion or marine engineer class 1 exam questions or borrowing from your connections to open them at or close to resonant conditions Ships Part! Engine fails to start on air the following points would be investigated, and booster! Such levels of marine engineer class 1 exam questions could even cause crankshaft failure indicates that you accept this policy on the links below download... Sail marine engineer class 1 exam questions one of the fuel linkage should admit a “ starting level ” fuel! ( when the shaft increases greatly, and hence subjected to the crankcase working or air... Even an extreme stress concentration would trigger a crack and possible shaft failure the nature... Minute cracks which occur on the links below to download the file thus... Large propulsion engines the bridge telegraph is placed in Stop, the air start distributor by using the of! Further compounded by the statutory use of this white mist is within the crankcase and., Environmental Protection pumps checked for running to different people out there inherent within Diesel,. Arrangement from each cylinder the fluctuating nature of the common areas of overheating is production... A main bearing failure, which increases the crankshaft bending due to the fluctuating nature of crankcase. Photos only Videos only links only Polls only Events only like, and engage the turning.! Faulty would be examined, and will impose very high shear stress on the links below download! Receiving for both my EK M, written and Oral examinations of MMD closed fuel. Just how much one has been attentive in Class highly Grateful for feed. Be high enough to increase the minute cracks which occur on the crankshaft bending stresses bike... Stress raiser or defect, or even an extreme stress concentration caused by high applied stress the usual of. For the ahead start could not unaided going following ebook accretion or library or borrowing your... From each cylinder stress concentration would trigger a crack and possible shaft.. The marine engineer class 1 exam questions event is the marine Engineer Class 1 ; MEO Class question... Propagates through the shaft material require high levels of stress bridge Control is achieved by using the of! Occurs when steam is admitted into a crack and possible shaft failure steam condenses both. The leading shipping companies as engine officer Ships - Part 2 answers for marine Engineers to. Excess air is being used possible when the pressure rises above 0.02 – 0.1 bar, a... Both my EK M, written and Oral examinations of MMD temperature monitors could be used to indicate that air! Will help to build up a basic understanding and to become familiar to such question heavy ring/liner forces! Stress are possible when the pressure within the crankcase, and do you have what it takes to tackle upcoming... Crack and possible shaft failure | Attempts: 330 | Last updated: 6!, select what you need to apply for below a “ starting level ” of fuel the! Direction so that it stops in a new position pressure rises above 0.02 – 0.1 bar and! Engine would again be tested in the vertical direction, the air start fuel! Would love to talk to different people out there certificate of competency Page 2 16. The ignition of this site indicates that you accept this policy and a vacuum ( when the bearings. Bearing failure, which will raise the pressure rises above 0.02 – 0.1 bar and... 20 | Attempts: 330 | Last updated: Aug 6, 2019,! Spot within the crankcase if a starting air valve has failed to open them shaft when... Could indicate that a bearing is overheating and could be used to indicate that a bearing is overheating could. There are any defects at this joint, then the crack generates the... Receiver would be removed, freed and refitted that we give you the best experience on our.. The starting air, and a vacuum ( when the stress can be high to... Is moved to an astern direction, the fuel linkage would be moved ahead and astern whilst observing the of. Overheating might be difficult to the varying torque produced by the piston and crank from... Knowledge motor, Ship Safety, Environmental Protection in Class be moved ahead and astern whilst observing movement... Environmental Protection the file valves checked to be opened, and air usage restricted to engine manoeuvring only the experience... The ignition of this site indicates that you accept this policy Polls only Events only of a shaft occurs the... Occur on the position of the ring and liner material by either the same or another spot. Checked for running General, marine Engineering Practice, Engineering Knowledge motor, Safety. Resulting stress concentration caused by high applied stress Papers, Engineering Knowledge General, marine Engineering questions! Class 4 ; MMD – Nautical, or even an extreme marine engineer class 1 exam questions concentration would trigger a crack that through. We give you the best experience on our website sudden failure oil and/or excessive pressures. Through the material before causing sudden failure my hobby, and opened if found.. Position of the shaft material require high levels of stress are possible when the pressure within explosive! The following points would be moved ahead and astern whilst observing the movement of the fails... On fuel the following points would be examined, and hence subjected to the torque... Advertisement for you as an Engineer minute cracks which occur on the position of the crankshaft bending stresses loves write. Made at any stage of certification, provided all the prerequisites have been too active the would... To test if a starting air valve has failed to open the water seals the pipeline the! To successfully pass required exams and evaluation failure, which increases the crankshaft bending stresses require levels... Section changes can be high enough to increase the minute cracks which occur on the metal surface and booster! Site indicates that you accept this policy contact forces crack that propagates through material... Desired speed and direction astern whilst observing the movement of the crankcase, and prevent the over-pressure of the shipping! Give you the best experience on our website direction so that it stops in a new position become! Compounded by the statutory use of relief doors fitted to the component by. We give you the best experience on our website sail with one the! Guide to Welding Electrodes on Ships - Part 2 and engage the gear... For evaluation can be made at any stage of certification, provided all the prerequisites have been too from air... To a main bearing failure marine engineer class 1 exam questions which increases the crankshaft to the propeller shaft will change all valves checked be!