Q14. (a) List FIVE of the nine hazards classes of Dangerous Goods as stated in the International Maritime Dangerous Goods (IMDG) code. (5)
(b) State the documentation that must accompany any hazardous shipment, explaining the purpose of this documentation. (5)
Q13.With reference to structural fire protection in passenger ship accommodation spaces:
(a) define the meaning of Class A bulkheads, stating the requirements; (4)
(b) explain how the integrity of the bulkhead is retained with respect to ventilation trunkings, where A Class bulkhead have to be penetrated. (2)
(c) discuss the design of ventilation systems with respect to location and isolation of air conditioning units, supply and exhaust fans, to prevent the spread of smoke and fire. (4)
Q14. During sea trials, extensive noise measurements are taken in accordance with the Code of Practice for Noise Levels in Ships.
(a) State and explain the unit of sound measurement. (2)
(b) State the noise level above which personnel are required to wear ear protection. (1)
(c) Explain how a ship's crew may be made aware of the hazards posed by exposure to excessive noise (2)
(d) Explain how the noise levels can be reduced in the design of EACH of the following:
(i) diesel generators;(3)
(ii) ventilation fans and trunkings. (2)
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