Tag: #ekmanagmentwritten

  • EK General Mar 2021 (Q5)

    EK General Mar 2021 (Q5)

    With reference to centrifugal separators used for oily bilge duty (a) Explain why centrifugal oily water separators are superior to those rely on gravity (3) (b) Describe, with the aid of a sketch, how flow over the centrifugal separator plates can break down emulsion by encountering flocculation of particles and coalescence of droplets (5) (c) State…

  • EK General Mar 2021 (Q4)

    EK General Mar 2021 (Q4)

    (a) Define propeller slip, explaining how it is calculated (2) (b) State, with reasons, FOUR conditions which will affect the propeller slip (8) Propeller, shafting & thrusters Mar 2021 (Q4)

  • EK General Mar 2021 (Q3)

    EK General Mar 2021 (Q3)

    (a) Sketch an annotated block diagram of a closed loop control circuit (5) (b) Describe how the control loop sketched in Q(a) operates (5) Control system Mar 2021 (Q3)

  • EK General Mar 2021 (Q2)

    EK General Mar 2021 (Q2)

    (a) Describe, with the aid of a Strain versus Time diagram how a creep test is carried out to determine the strain rate of the material under test (6) (b) Explain EACH of the stages sketched in the diagram in part (a) (4) Materials Mar 2021 (Q2)

  • EK General mar 2021 (Q1)

    EK General mar 2021 (Q1)

    Describe EACH of the following properties of materials: (a) Strength (2) (b) Hardness (2) (c) Ductility (2) (d) Toughness (2) (e) Brittleness (2) Materials Mar 2021 (Q1)

  • EK General Dec 2020 (Q8)

    EK General Dec 2020 (Q8)

    (a) The International Management Code for the Safe Operation of Ships and for Pollution Prevention, is commonly referred to as the ISM code. Explain the objectives of ISM and how they are achieved (5) (b) List FIVE emergency scenarios for which contingency plans may be developed under ISM with respect to the engine room. (5)…

  • EK Motor Jul 2020 (Q9)

    EK Motor Jul 2020 (Q9)

    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 systems in good condition. (8) Scavenging & Turbocharger Jul 2020 (Q9)

  • EK General Dec 2020 (Q7)

    EK General Dec 2020 (Q7)

    (a) State the possible causes for EACH of the following auxiliary diesel engine lubricating oil sample results: (i) high acidity; (2) (ii) high sediment content; (2) (iii) excessive water content; (2) (iv) fuel dilution. (2) (b) Explain which of the results in Q(a) would give greatest concern. (2) Lubricating oil & system Dec 2020 (Q7)

  • EK General Dec 2020 (Q6)

    EK General Dec 2020 (Q6)

    (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)

    EK General Dec 2020 (Q5)

    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…