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Q7. Following a serious machinery space fire, the engine room was abandoned and an inert gas smothering agent used to extinguish the fire.

Write a report to the Superintendent Engineer detailing the sequence of events which led to this course of action and the subsequent actions taken to enable the vessel to proceed on passage. Include conclusions and recommendations in the report. (10)

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)

Q8. With reference to CO2 gas provided for firefighting purposes:

(a) describe, with the aid of a sketch, a system for the detection and extinguishment of hold fires;(7)

(b) state how the amount of gas to be released into the hold space is estimated. (3)

Q8. With reference to fixed CO2 smothering systems for ships machinery spaces:

(a) State the safety procedure that the Chief Engineer Officer should adopt with respect

to maintenance being carried out on the system by contractors whilst the vessel is in port. (3)

(b) State the procedure prior to the safe release of CO2 into the machinery space in the event of a fire. (4)

(c) Describe the factors that should be considered prior to re-entry of the machinery spaces after the release of CO2 gas. (3)

Q12. With reference to the structure of a large passenger vessel:

(a) describe how the spread of smoke and fire is prevented.

(b) describe the standard fire test for a Class A-60 Division material.

Q12. When a vessel is in dry dock, the possible risks of fire in the machinery spaces are heightened due to the nature of the work being carried out.

As Chief Engineer Officer, compile a set of standing orders instructing ship's staff on the actions to be taken should a serious fire occur. (10)

Q8. With reference to fresh water HI-FOG fire fighting systems:

(a) sketch such a system; (6)          (b) state how the system in (a) is activated; (2)

(c) state, with a reason, a suitable location for the above system. (2)

Q10. (a) State FIVE essential electrical services that are able to be operable under fire conditions.(5)

(b) Explain how electric cables for the essential services in part (a) pass through bulkheads whilst maintaining gas tight and water tight integrity. (3)

(c) State the requirements for the cables which supply electrically driven emergency fire pumps.(2)

Q8. The company, with which you are employed, requests that all Chief Engineer Officers prepare standing orders regarding the prevention and detection of fires in the machinery spaces. Compile such a list of recommendations to be submitted to central office. (10)

Q8. As Chief Engineer Officer, write a report to the Superintendent Engineer naming the items and describing the examinations that were carried out during a safety equipment survey with regard to fire safety. (10)

Q14. With reference to the structure of a large passenger ship, describe the requirement for preventing the spread of fire and smoke. (10)

Q8. With reference to tanks containing hydrocarbon liquids and vapours:

(a) Define EACH of the following terms:

(i) Explosive limits; (2)        (ii) vapour pressure; (2)      (iii) flash point. (2)

(b) Explain how the atmosphere in cargo tanks containing varying percentages of flammable gas can be maintained in a safe condition at all times. (4)