DieselShip's Online Content Library

Q1. With reference to fire smothering agents explain as to why:

A. Effectiveness of foam is directly related to its degree of effervescence and surface tension? (7)

B. Low expansion foam is best suited for use against localized fire, whilst high expansion foam is most effective in major conflagrations?        (7)

C. In the absence of foam appliances, water jets can be effectively used against oil fires? (6)

Q7. With reference to the SOLAS 1974/1978 Convention as amended, which outlines mandatory requirements for steering gear tests and drills?

A. Describe the test procedure to be carried out within the, 12 hours before departure on a sea-voyage;

B. Describe the emergency steering drills that must take place at least once every, 3 months;

C.  State how often the test in (A) and the drill in (B) should be carried out for ships which regularly engage on voyages of short duration.

Q3. State the regular routines carried out on the following system:
a) Self-contained Breathing apparatus (SCBA). (5)
b) Accommodation Fixed Fire detection system. (5)
C) Emergency Escape Breathing Device (5)
d) immersion Suits (5)

Q4. Prepare a proposal for safe manning requirements for a ship of your choice taking into account the IMO guidelines on the issue, also considering frequent port calls, rest hour management and high-risk areas.

Q5. a) Briefly discuss crude oil washing (COW) and its environmental benefits compared to traditional tank cleaning methods, highlighting its role in reducing the discharge of oily residues into the marine environment. (10)

b) Explain the safety considerations associated with crude oil washing procedures, including potential risks to personnel, equipment, and the vessel’s structural integrity. (10)

Q6. During unit overhauling of Main engine, sudden rough weather caused accident in engine room. State what all checks and precaution taken up prior to carry out such operation.

Q4. With reference to MARPOL Annex IV; A. Draw a biological sewage treatment plant and explain the principal of operation B. Periodical maintenance and checks and tests required to be done to verify the effectiveness of the above system.

Q8. a) Discuss the key provisions of the Hazardous and Noxious Substances (HNS) Convention, including, its objectives and scope. (10)
b) Discuss the types of hazardous and noxious substances covered by the convention and their potential impact on marine ecosystems and compensation mechanisms established by the HNS Convention for incidents involving the transportation of hazardous and noxious substances by sea. (10)

Q9. Explain the following terms/statements: -

a) Categories of Noxious liquid substance (5)

b) Special Areas as defined in MARPOL 73/78 (5)

c) Particularly Sensitive Sea Areas (5)

d) Designated fuel oil sampling points (5)