DieselShip's Online Content Library

Q1. A. (i) discuss the various hazards and problems which are associated with electric cable insulation in the event of fire;

(ii) Suggest remedies for these problems.

B. State how the spread of fire may be reduced by the method used for installing electric cables.

Q3. Ships are provided with an independent diesel or electric or air operated emergency fire pump.

(a) State three areas in which emergency fire pump are commonly installed and give reasons why?

(b) Describe with aid of a simple sketch an air pump or primer used to initiate suction when the fire pump is situated above sea water level.  What suction lift would you expect from a single stage pump system?

(c) State the water jet capacity the pump must be capable of.

(d) State how it can be ensured that the fire pump is kept in good working order.

(e) State what precaution must be taken in sub-zero temperatures?

(f) Using a simple sketch describe with reasons, how the emergency fire pump is connected to the ship’s fire main showing position of any isolation valves fitted and location of international shore connection

Q5. In engine rooms that are operated under UMS conditions describe with the aid of sketches how the following are monitored:

A. The perforation of a high-pressure fuel pipe;

B. The imminence or possibility of a scavenge fire;

C. Condition that may be conducive to a crankcase explosion

Q4. A. With reference to shipboard sewage systems, Describe the principle of operation of EACH of the following types - I. Flow through system; II. Collection / Holding / transfer system; III. Zero discharge system. B. I. Explain why sewage systems involving aerobic action are to be preferred to those with anaerobic action. Aerobic Action: II. Explain the meaning and significance of the term Biological oxygen demand.

Q6. With reference to the pumping of cargo tanks of chemical tankers - A. Sketch and describe an arrangement used with the cargo pump or independently of the pump, to facilitate tank drainage; B. State significant regulation which will assist in reducing pollution of sea by chemical cargoes.

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.

Q6. With reference to a bank of emergency lead acid batteries:

A.  State the conditions of the battery bank if the specific gravity of a number of cells in the bank is in the region of 1.11 with an ambient temperature of 160Celcius;

B. Describe a systematic procedure for checking the conditions of the battery bank if it is divided into section for charging;

C. Describe the necessary routine maintenance;

D. Describe how capacity test carried out on bank of Batteries.

Q8. With reference to enclosed spaces - A. List the tests and precautions that should be taken before a person may enter such a space; B. List the precautions that must be observed whilst personnel are in the space and actions to be taken in the event of an accident.

Q9. A. State where information can be obtained with regard to the safe carriage of hazardous substances as cargos. B. For a hazardous substance of your choice as a cargo, discuss each of the following; i) Storage and transport; ii) Hazardous properties; iii) Firefighting and suppression techniques; iv) Medical effects and treatment after physical contact with cargo.