Tag: #ekmanagmentwritten

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(a) Describe the principle of operation of a biological sewage treatment plant. (4) (b) Explain how anaerobic conditions can occur within a sewage treatment plant, stating the hazards that may be encountered. (4) (c) Explain the meaning and significance of the term biological oxygen demand. (2) Sewage system Oct 2020 (Q5)

EK Motor Jul 2020 (Q4)

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in EK Motor

As Chief Engineer, write a report for the engineering superintendent regarding the checking of a bottom end bearing on a crosshead type main diesel engine, after a high temperature alarm was activated at sea, and the subsequent return to full service of the engine. (16) Bearings Jul 2020 (Q4)

EK General Oct 2020 (Q4)

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With reference to vessels fitted with podded propulsion systems capable of being rotated through 360°: (a) State the advantages claimed over conventional shafting and steering arrangements; (6) (b) State, with reasons, the type of vessels that are most suited to this means of propulsion. (4) Propeller, shafting & thrusters Oct 2020 (Q4)

EK Motor Jul 2020 (Q3)

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in EK Motor

(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. (6) Emission…

EK General Oct 2020 (Q3)

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(a) Explain EACH of the following control terms: (i) Proportional action; (2) (ii) Integral action. (2) (b) Describe, with the aid of a sketch, a control system that may be enhanced by the inclusion of cascade control. (6) Control system Oct 2020 (Q3)

EK General Oct 2020 (Q2)

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Explain EACH of the following metallurgical processes: (a) induction hardening; (3) (b) nitriding; (3) (c) case hardening. (4) Materials Oct 2020 (Q2)

EK Motor Jul 2020 (Q2)

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in EK Motor

With reference to failure of fuel injector nozzles due to burning: (a) State, with reasons, THREE possible causes; (6) (b) Write a procedure to be used when investigating the cause of fuel injector nozzle burning; (6) (c) Describe a maintenance system which should be operated in order to minimize the risk of future fuel injector…

EK General Oct 2020 (Q1)

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(a) Sketch a Stress/Strain curve for a mild steel test specimen. (2) (b) With reference to the curve sketched in part (a), explain EACH of the following: (i) Modulus of elasticity; (2) (ii) Percentage elongation; (2) (iii) Ultimate tensile stress; (2) (iv) Yield stress. (2) Materials Oct 2020 (Q1)

EK General Aug 2020 (Q8)

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As Chief Engineer Officer, write a procedure listing recommendations for the safety precautions to be adopted when servicing accommodation lifts. (10) Safety Aug 2020 (Q8)

EK General Aug 2020 (Q7)

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