UKM Tuticorin

Category: EK Motor

  • EK Motor Jul 2019 (Q8)

    EK Motor Jul 2019 (Q8)

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    (a) Describe, with the aid of a sketch, a Selective Catalytic NOx Reduction system, explaining the chemical reaction for reducing NOx and the control system requirements (10) (b) State two engine based systems for reducing marine diesel engine NOx, explaining how they reduce NOx level but also increase fuel consumption and CO2 emissions Emission control…

  •  EK Motor Jul 2019 (Q7)

     EK Motor Jul 2019 (Q7)

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    (a) Describe, with the aid of a sketch, a main engine and generator fuel system which has the capability of changing the generators from HFO to MDO operation whilst maintaining circulation of HFO in the main engine system (8) (b) write instruction for the change of the generator engines to operation on MDO whilst keeping…

  •  EK Motor Jul 2019 (Q6)

     EK Motor Jul 2019 (Q6)

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    With reference to two stroke, slow speed engine pistons: (a) Explain what is meant by the term thermal stress and how this can cause cracking of crown surface (4) (b) Sketch a cross-section of a piston, labeling the main components and indicating coolant flow (8) (c) State a cause of EACH of the following defects…

  • EK Motor Jul 2019 (Q5)

    EK Motor Jul 2019 (Q5)

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    (a) With the aid of sketches, describe the operation of a dual fuel 4-stroke engine when operating on gas (10) (b) For the engine described in (a), Explain how and when the fuels are supplied to the cylinders (6) Dual fuel Jul 2019 (Q5)

  • EK Motor Jul 2019 (Q4)

    EK Motor Jul 2019 (Q4)

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    (a) Describe a procedure for cylinder liner calibration, indicating how the reading are recorded to allow for easy recognition of liner wear (6) (b) Describe TWO forms of abnormal cylinder wear, explaining how EACH is recognised (6) (c) Explain how abnormal cylinder liner wear may be prevented. (4) Cylinder liner Jul 2019 (Q4)

  • EK Motor Jul 2019 (Q3)

    EK Motor Jul 2019 (Q3)

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    Write a report to the engineering superintendent regarding the failure at sea of a crosshead main engine bottom end bearing. The report must explain how the defect was detected, the immediate action taken to prevent further engine damage, the subsequent action taken to ensure that the vessel was able to continue on passage to the…

  • EK Motor Jul 2019 (Q2)

    EK Motor Jul 2019 (Q2)

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    (a) Explain why an engine may fail to start on air when the start air receiver is fully charged and the air receiver outlet to the engine is open (10) (b) Describe how problem with air starting system may be avoided (6) Starting & control Jul 2019 (Q2)

  • EK Motor Jul 2019 (Q1)

    EK Motor Jul 2019 (Q1)

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    With reference to turbocharger systems: (a) Describe how performance of the system is monitored and how the information gathered is used to assess performance. (8) (b) Describe the arrangements for maintaining the system in good condition (8) WHRS & Boiler Jul 2019 (Q1)

  •  EK Motor Mar 2019 (Q9)

     EK Motor Mar 2019 (Q9)

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    (a) Explain why multiple exhaust valves are fitted to some medium speed diesel engines (6) (b) Explain how the valve actuator (tappet) clearance is set for multiple valve installations (4) (c) Write instructions for checking the valve operating mechanisms of a medium speed engine (6) Cylinder head Mar 2019 (Q9)

  • EK Motor Mar 2019 (Q8)

    EK Motor Mar 2019 (Q8)

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    (a) Describe, with the aid of a sketch, a main engine cooling water system, explaining why different parts of the system have different operating parameters (10) (b) Describe the charge air supply system for a turbocharged engine, explaining the purpose of each main part (6) Cooling system & FWG  Mar 2019 (Q8)