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Q1. Describe, with the aid of a graph, EACH of the following types of ferrous material failure, stating ONE practical example of EACH:

1. creep; (5)

2. fatigue. (5)

Q4. (a) Define propeller slip, explaining how it is calculated. (2)

(b) State, with reasons, FOUR conditions which will affect the propeller slip. (8)

Q3. Describe, with the aid of a sketch, the operation of a static Oily Water Separator which conforms to current MARPOL regulations and utilises a pump on the discharge side of the separator. (10)

Q5. With reference to centrifugal pumps:

(a) state the operating principle of a centrifugal pump and why it is unnecessary to fit a relief valve to it; (2)

(b) State TWO impeller types, explaining which type of application EACH would be best suited for; (4)

(c) Explain why cavitation occurs, and how it is reduced by design; (4)

Q5. (a) State the regulations pertaining to the main and auxiliary steering gear with reference to EACH of the following:

(i) rudder angle and time of operation;(2)

(ii) electrical supply. (3)

(b) With reference to a hydraulic steering gear, explain EACH of the following:

(i) the factors that may contribute to the failure of a hydraulic pipe coupling; (2)

(ii) what is meant by the single failure concept. (3)

Q6. With reference to pneumatic instrument and control systems:

(a) sketch a control air dryer as fitted downstream from the instrument air compressor or reducing valve; ( 6)

(b) explain the operation of the dryer sketched in part (a). (4)

Q7. (a) The international management code for the safe operation of ships and for pollution prevention, is commonly referred to as the ISM code.

(A) Explain the objectives of ism and how are they achieved. (5)

(b) List five emergency scenarios for which contingency plans may be developed under ism with respect to the engine room (5)

Q8. With reference to fixed installations for machinery space fires:

(a) sketch a CO2 bottled system; (5)

(b) explain how the system sketched in part (a) is protected from overpressure; (2)

(c) describe the periodic maintenance required. (3)

Q9. With reference to overcurrent protection for electrical circuits:

(a) Explain THREE methods of protection, stating where EACH may be used; (6)

(b) explain, with the aid of a diagram, the meaning of the term inverse current time characteristic. (4)

Q10. With reference to three-phase induction motor starters:

(a) explain why star-delta starters are employed; (2)

(b) explain what is meant by reduced voltage starting in the context of star-delta starters; (2)

(c) explain, with the aid of a power circuit, the sequence of operation of a start-delta starter. (6)

Q11. Explain the meaning of EACH of the following types of electrical equipment:

(i) intrinsically safe; (2)        (ii) flameproof; (2)     (iii) increased safety; (2)

(iv) pressurised enclosure. (2)

(b) State TWO types of lighting equipment that may be installed in the pump room areas of a crude petroleum carrier. (2)

Q12. With reference to structural fire protection in passenger ship accommodation spaces:

(a) define the meaning of Class A bulkheads, stating the requirements; (3)

(b) discuss the design of ventilation systems to prevent the spread of smoke and fire; (5)

(c) explain how the integrity of the bulkhead is retained with respect to ventilation trunkings, where A Class bulkhead have to be penetrated. (2)

Q13. As Chief Engineer Officer of an older vessel which has recently been purchased, write a report to the Superintendent Engineer detailing the items that should be inspected to ensure that the conditions of assignment are satisfactorily complied with. (10)

Q1. (a) Describe the survey of a hollow rudder. (7)

(b) Explain the possible effects if the watertight integrity of the rudder was compromised. (3)