Author: UKM TUTICORIN

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Write a report for the engineering superintendent regarding the replacement of the fuel injectors of three main engine units due to severe erosion of the nozzle holes and burning of the injector tips. The report must explain how the defects were detected, the likely cause of the damage and the action which has been implemented…

EK General Jul 2020 (Q2)

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in EK GENERAL

Describe, with the aid of a sketch, the principle of operation of a capacitance electrode level measuring transmitter. (10) Control system Jul 2020 (Q2)

EK Motor Oct 2019 (Q3)

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(a) Explain why multiple air inlet and exhaust valves are fitted to some medium speed diesel engines (4) (b) Explain how the valve actuator (tappet) clearance is set for multiple valve installations (4) (c) Write a procedure for checking the valve operating mechanics of a medium speed engine (8) Cylinder head Oct 2019 (Q3)

EK General Jul 2020 (Q1)

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in EK GENERAL

Discuss the factors that lead to the selection of materials for use in a sea water cooled, multi-tubular heat exchanger. (10) Heat exchanger Jul 2020 (Q1)

EK Motor Oct 2019 (Q2)

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As Chief Engineer write instructions for the main and auxiliary engine fuel change-over procedures to be followed when a vessel is due to move into an Emission Control Area. Approximate times must be mentioned to ensure that the vessel does not infringe any regulations and the instructions must mention steps required to avoid cross-contamination of…

EK Motor Oct 2019 (Q1)

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With reference to fatigue cracking: (a) describe, with the aid of an S/N curve, the relationship between applied stress and the number of applied stress fluctuations in fatigue crack propagation (5) (b) Define the term Stress Raiser, giving examples and explaining the influence of a stress raiser on the propagation of a fatigue crack (5)…

EK Motor Jul 2019 (Q9)

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(a) Explain the possible causes and actions to be taken in the event of a high exhaust temperature on a four stroke generator engine at (i) A single cylinder (3) (ii) more than one cylinder (3) (b) explain why multiple air inlet and exhaust valves are fitted to highly rated 4-stroke engines (4) (c) Describe…

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)

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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 General Dec 2019 (Q8)

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