Category: EK GENERAL

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(a) Sketch an oily water separator that complies with current MARPOL regulations. (5) (b) Describe a monitoring system that ensures that the oil discharge content is below the recommended maximum and that logs and retains data. Also mention any other measures to ensure that illegal discharges are prohibited. (5) Bilge, OWS & ORB Dec 2020…

EK General Dec 2020 (Q5)

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With reference to centrifugal pumps: (a) sketch a double entry impeller showing directions of flow; (3) (b) explain why double entry impellers are fitted; (2) (c) explain, with the aid of a Head versus Flow diagram, why a two speed pump is preferable to throttling where high and low capacities are demanded for a large…

EK General Dec 2020 (Q4)

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With reference to main thrust block arrangements: (a) Explain how the tilting pads assist in the formation of an oil wedge; (2) (b) Describe the actions that may be taken if upon inspection the pads are found to be: (i) Lightly scored; (2) (ii) Wiped; (2) (c) Explain how the thrust clearance may be measured,…

EK General Dec 2020 (Q3)

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Discuss the advantages and disadvantages of electrical remote monitoring and control systems compared to pneumatic systems. (10) Control system Dec 2020 (Q3)

EK General Dec 2020 (Q2)

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(a) Describe, with the aid of a sketch, a temperature measuring instrument that uses the principle of operation of a change in resistance with the application of heat. (6) (b) Describe how the instrument sketched in part (a) is tested and calibrated. (4) Control system Dec 2020 (Q2)

EK General Dec 2020 (Q1)

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With reference to steels used in shipbuilding and marine engineering: (a) describe EACH of the following types of failure; (i) brittle failure; (2) (ii) ductile failure. (2) (b) Explain the term ductile to brittle transition stating the factor that determines ductile to brittle transition. (2) (c) Describe a test to determine the value of brittle…

EK General Oct 2020 (Q8)

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With reference to fixed machinery space fire fighting systems which use water in the form of fog or mist, explain EACH of the following: (a) how the fire is contained and extinguished; (4) (b) the importance of particle size and flow rate; (4) (c) the routine testing to be carried out. (2) Fire Oct 2020…

EK General Oct 2020 (Q7)

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During bunkering operations, a section of deck bunker line starts leaking fuel oil from a pinhole at the mid section of the pipe. (a) As Chief Engineer Officer, state the immediate actions to be taken to avoid a potential pollution incident; (4) (b) Explain how a permanent repair could be made, stating any precautions to…

EK General Oct 2020 (Q6)

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With reference to a ship’s air conditioning plant: (a) define the term comfort zone; (2) (b) state the objectives of maintaining the conditioned air within the comfort zone, (3) (c) state, with reasons, FIVE areas from which the conditioned air must not be recirculated. (5) Reefer & A/C Oct 2020 (Q6)

EK General Oct 2020 (Q5)

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