State how overheating might be indicated other than by mist detector ? Uniforms for India. Below are marine engineering questions and answers which you may likely come across someday. A Guide to Understanding New Designations in AWS Filler Metal Classifications. CoC Class 1 & 2 Marine Engineer Officer (Part B) COURSE AIMS: The Combined Class 2 & 1 Engineer Officers course will lead to the issue of Class 2 & 1 Certificate of Competency (CoC), issued by the Maritime & Port Authority (MPA) of Singapore, upon successful completion of written examinations at SMA and oral examinations at MPA. To get certified, candidates have to successfully pass required exams and evaluation. One of the common areas of overheating is the various bearings within the crankcase. The valves from the air receiver would be checked, and opened if found shut. When the bridge telegraph is placed in Stop, the fuel is prevented from injecting as the fuel pump puncture valves are energised. This torque variation is further compounded by the arrangement of the firing order of the crankshaft. The following brochures contain oral questions. Love Dogs a lot. 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. Fatigue failure is identified as starting at a stress raiser or defect, then the crack generates through the material before causing sudden failure. - Observation and Spark Test. Continued use of this site indicates that you accept this policy. The doors also perform the added function of preventing fresh air ingress into the crankcase where hot burning gases are present, by the quick closing action of the relief door. X. Water hammer occurs when steam is admitted into a cold pipeline. The steam condenses producing both water, and a vacuum (when the water seals the pipeline from the steam supply). There are no answers to these questions. 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. are reversed. Previous template Next. Home » General Engineering Knowledge » Questions and Answers for Marine Engineers – Part 1, Questions and Answers for Marine Engineers – Part 1. These levels of stress could even cause crankshaft failure. 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. Director General of Shipping, Govt of India. Questions and Answers on Diesel Engines 1, Preparation for Arrival in Port Checklist, Fuel Injection Arrangement on Large Two Stroke Engines, Maintenance of Chain Drive – Marine Diesel Engines, Operation of Freshwater Generator with Jacket Cooling Water, Starting Air Line Explosion on Ships – Marine Engineering, International Shore Connection for Fire Fighting, Torsional Vibration in Main Propulsion Plant of a Ship, MEO Orals on Marine Electro Technology Function 5- Part 8, Describe how a fatigue crack may be initiated, Describe the events leading to a crankcase explosion on a main engine, Explain how a fatigue failure is identified, How a detuner or torsional vibration damper can reduce the effects of torsional vibration, how the risk of water hammer may be avoided, problems associated with effective lubrication of the liner and piston assembly, State how overheating might be indicated other than by mist detector, State how the severity of a crankcase explosion is limited, wear down in main bearings is critical to the condition of the crankshaft, What are the causes and effects of torsional vibrations in crankshaft, What is meant by the term critical speed and why it can be a problem on ships, Why oil holes are given large fillets in crankpins and journals, why the testing and treatment of boiler water is essential, Why total reliance is placed on frictional grip in conventional built up crankshaft on main engine, Measuring Fuel pump Lead on Marine Auxiliary Engine, Operation and Maintenance of Eductor on Ships, Insulation Resistance Tests of High Voltage Equipment, The level of chlorides is within acceptable limits (below 200 ppm) to prevent hard scale and pitting, The reserve of boiler chemicals within the boiler water is accepted (P Alk above 100 ppm, and Phosphate above 20ppm), Alkalinity reserve against boiler water space corrosion, Enough coagulant levels exist to minimise sludge build-up within the boiler, The strength of the boiler drum is maintained, Reducing the steam load and demand on the auxiliary boiler to reduce firing temperatures, Ensuring hotwell feed temperatures are at the recommended 95°C to minimise oxygen levels in the feed, Minimise blowdown of boiler water, whilst ensuring chloride level is not excessive, to avoid loss of the boiler chemicals, High combustion pressures, increasing the bending stress applied to each crankshaft throw. Questions and Answers for Marine Engineers – Part 1. We use cookies to ensure that we give you the best experience on our website. Excessive crankshaft bending due to a main bearing failure, which increases the crankshaft bending stresses. The stress can be increased locally by a surface defect, or even an extreme stress concentration caused by high applied stress. Marine Uniforms. Marine Engineer Class 2 Exam Questions related files: 6e8c2adf86cefe1fb0c54800dbcc8135 Powered by TCPDF (www.tcpdf.org) 1 / 1 No air pressure at engine manifold. 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. Target Consumer. Marine Boilers Class 2 CoC Uk Oral Exam Questions. Your email address will not be published. Water hammer occurs when steam is admitted into a cold pipeline. This impact force can be high enough to rupture the pipeline. However in the real situation the following problems occur: Cloverleafing will be caused when the supply of lube oil is not uniform around the radial bore of the liner. 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. Class IV Level ; New Management Level. When the bridge telegraph is moved to an astern direction, the air start and fuel cams Very very good feed back I am receiving for both my EK M, written and Oral examinations of MMD. READ MEO Class 4B Exam Questions and Answer of MEP. A. monel MEO Class 1; MEO Class 2; MEO Class 4; MMD – Nautical. 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 … Academic Papers; Uniforms. Do give it a shot and see if you have what it takes to tackle the upcoming engineering exam finals. 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. Marine Engineer Class 2 Exam Questions Author: programafaixalivre.org.br-2021-01-11T00:00:00+00:01 Subject: Marine Engineer Class 2 Exam Questions Keywords: Marine, Engineer, Class, 2, Exam, Questions Created Date: 1/11/2021 3:16:03 PM The initiation site will be where the local stress is high enough to increase the minute cracks which occur on the metal surface. Marine Engineering interview questions :- 1.What is motor bike c.c. Loves to brag about the places that i have been too. Such levels of stress are possible when the stress is concentrated at section changes. Chief Engineer officers on ships powered by main propulsion machinery of 3,000 kW propulsion power or more must: 1. Following this the trip reset button would be pressed. These are marine engineering questions and answers which may look simply but might be difficult to the young professionals. Air start valve not opening. Questions: 20 | Attempts: 330 | Last updated: Aug 6, 2019 . Sticking fuel linkage. 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. 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. 2. Engineering Exams. Time. A Guide to Welding Electrodes on Ships - Part 1. Low air pressure at engine manifold. I sail with one of the leading shipping companies as engine officer. 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. They seems simple. ? Required fields are marked *. If the engine fails to fire on fuel the following points would be investigated, and remedial action taken. Hence bearing temperature monitors could be used to indicate that a bearing is overheating and could be oil mist generation site. Turning gear engaged. Would love to talk to different people out there. 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 … Engineering Exams. Thanks lot to you, I am highly Grateful for your feed back. 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. Surface defect, then the resulting stress concentration would trigger a crack that through. Class 4 ; MMD – Nautical links only Polls only Events only is achieved using. Torque produced by the arrangement of the leading shipping companies as engine officer firing order of the linkage! The trip reset button would be investigated and system made operational unit 1 Engineering quiz that is for. 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