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Q1. Describe the routine watch-keeping duties carried out in the steering flat. (16)

Q2. With reference to plate heat exchangers:

a. Describe, with the aid of sketches, their construction. (10)

b. Sketch a typical cooler plate. (6)

Q3. With respect to MARPOL convention Annex IV, explain the criteria for discharging sewage from a ship into the sea when the ship is at a distance:

a) Within 3 nautical miles from the nearest land. (4)

b) Between 3 and 12 nautical miles from the nearest land. (6)

c) More than 12 nautical miles from the nearest land. (6)

Q4. (a) Describe how the thrust of the propeller is transmitted to the hull of the ship. (4)

(b) Describe, with the aid of a sketch, how the surfaces, within the thrust block, transmitting the thrust are separated by the lubricating oil. (8)

(c) Explain the importance of the oil temperature within the thrust block (4)

Q5. (a) List FOUR different types of fire detector head that may be fitted to the Fire Detection System. (4)

(b) Describe the principle of operation of TWO of the fire detector heads listed in (a). (12)

Q6. State the procedure to be carried out if you found someone you suspected of having received an electric shock. (16)

Q7. With reference to large capacity secondary cell batteries:

(a) State the two types (4)

(b) State four applications onboard ship (4)

(c) Describe the maintenance required. (8)

Q8. With reference to the stability and construction of ships:

(a) Explain how the loading of wing bunker tanks can be used to aid stability (4)

(b) Explain how the loading of double bottom bunker tanks can be used to aid stability (4)

(c) Define EACH of the following stability terms.

(i) Trim (4)

(ii) Heel (4)

Q9. (a) Describe the inspection required of a weathertight door, found on the weather deck of a vessel, to ensure satisfactory operation. (16)