DieselShip's Online Content Library

Q1. What is understood by risk on board ship? As a 2nd engineer discuss various methods for hazard identification and assessment of risk available on board.

Q6. With reference to the circuit breaker for an a.c. generator A. Describe the preventive maintenance carried out on the circuit breaker for an A.C Generator. B. Explain the sequence of events that might occur if the breaker opens on a short circuit and state the check you would require following such event. C. Give a safe procedure to follow should a main circuit breaker fail to open under fault condition.

Q4. An auxiliary engine exhibits a tendency to hunt to such an extent that the engine speed variation prohibits the connection of the machine to the switchboard. A. Discuss the possible causes of hunting; B. Explain how the problem of hunting can be rectified.

Q8. For a fully automatic provisions refrigeration system incorporating a number of rooms; A. Explain how each room temperature is set;  B. Describe the sequence of events following a demand for increased refrigerant flow from one room;  C. State with reasons the devices incorporated into the system to protect the machinery and equipment against malfunction;  D. State how satisfactory operation of the plant can be established?

Q1. A. Sketch and describe a pneumatic control system for controlling temperature of main engine lubricating oil at outlet of the cooler and; B. Explain why air supplied to a pneumatic control system must be free from dust and water; C. Describe how above impurities are removed; D. State the possible consequences if the air supply is contaminated.

Q4. Describe the method of setting the safety valves of an exhaust gas boiler at sea.

a. State the limits in terms of percentage above maximum design working pressure, for setting safety valves. (8)

b. State the formality necessary when chief engineer sets the safety valves. (8)

Q6. Under Continuous survey of machinery (CSM) bottom end bearing of a large 2stroke slow speed engine is due for survey.

A. As second engineer, explain the procedure involved in complete inspection of a bottom end bearing.

B. List the precaution to be taken.

C. Indicate the reasons for possible defects which could be encountered and state how they may be rectified.

D. What test are carried out on completion of survey and re-assembly.

Q6. A. State the circumstances owing to which it may be necessary to renew a cylinder liner.

B. Explain how the liner is removed

C. Explain how the new liner is fitted; State the important checks to be made before and after fitting.

Q8.  Describe the procedure to be undertaken when, upon a routine schedule for changing fuel injector on a main engine, it is found that the injector body is seized and cannot be removed by conventional means