Q1. With reference to MARPOL Annex 6:
(a) State the current special areas identified for diesel engine NOx and SOx emissions (8)
(b) State the current SOx emission limits globally AND for emission control areas. (4)
(c) State the required documentation that must be held onboard to show compliance with NOx regulations (4)
Q2. (a) Explain TWO factors that have an influence on the separating process within a centrifugal purifier. (8)
(b) Explain TWO reasons for a purifier not attaining full running speed (8)
Q3. (a) Describe the purpose of EACH of the following publications issued by the Maritime and Coastguard Agency (MCA):
(i) Merchant Shipping Notices (MSNs). (4)
(ii) Marine Guidance Notes (MGNs). (4)
(iii) Marine Information Notes (MINs). (4)
(b) State how it can be determined that such MCA publications have been superseded or cancelled. (4)
Q4. (a) With reference to a control system, list FOUR examples of a measured variable. (4)
(b) Explain the meaning of the term two step control, giving one example of its use. (6)
(c) Explain the meaning of the term proportional control, giving one example of its use. (6)
Q5. State, with a reason, TWO types of portable fire extinguisher that may be used to fight a fire in EACH of the following shipboard areas:
(a) Galley. (4)
(b) Accommodation space. (4)
(c) Machinery space control room. (4)
(d) Main electrical switchboard. (4)
Q6. With reference to marine electrical distribution systems:
(a) State the meaning of the term insulated neutral. (8)
(b) Briefly describe how the location of an earth fault can be found. (4)
(c) State the safety precautions to be taken before investigating faulty electrical machinery. (4)
Q7. With reference to a small 3 phase electrical motor driving a transfer pump that is not used on a regular basis failing to rotate when the start button is pressed:
(a) Outline the procedure to determine the possible cause. (8)
(b) Explain the procedure to remove the motor should it be faulty and require changing. (8)
Q8. (a) State the measurement that gives an indication of a ship's stability. (2)
(b) Explain the meaning of the measurement stated in (a). (2)
(c) Explain how the measurement given in (a) indicates EACH of the following:
(i) Stable stability. (4)
(ii) Unstable stability. (4)
(iii) Neutral stability. (4)
Q9. Explain the meaning and purpose of EACH of the following ship terms:
(a) Hawse pipe. (4)
(b) Chain Stopper. (4)
(c) Fairlead. (4)
(d) Bollard. (4)
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