DieselShip's Online Content Library

Q9. Severe engine vibration has recently become evident when the main engine for which you are responsible operates within a certain speed range –

A. State, with reasons, the possible causes of such vibration;

B. State the consequences of operating the engine under such vibratory conditions;

C. Describe the procedure you, as Second Engineer, would implement in order to investigate and rectify the problem.

Q2: What are the checks carried out on an anchor chain during dry-docking? Suggest possible repairs for identified defects.

Q7. Briefly describe your action plan on following exigencies:

A. Leaky economizer tube, while at sea;

B. Leaky intercooler of main air compressor, while manoeuvring.

Q6. With regard to keeping the gas side of boilers in good condition discusses EACH of the following:

A. the mechanism of combustion, stating the factors which are important to good combustion;

B. Oil fuel treatments;

C. Soot removal equipment;

Q5. Under Continuous Survey of Machinery, the main bearing of a large slow speed engine is due for survey. A. Explain the procedure involved in the inspection of a main 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 reassembly.

Q7. A. With the aid of a simple sketch, explain the operation of a basic air-conditioning unit. B. With reference to your sketch, explain the following: - i. How the problem of increase in humidity on cooled air is overcome; ii. How discomfort caused by the excessive drying effect of heated air is overcome. C. Explain how a psychometric chart is used to check conditions.

Q4. Accidents regularly occur due to premature or accidental release of CO2 into machinery spaces. With reference to this, enumerate the procedure or arrangement that you as second engineer would adopt with respect of the following

A.  Contractors working on CO2 system;

B. Understanding between bridge and engine room in the event of a machinery space fire;

C. Familiarizing staff with the system;

D. Checks and tests are carried out before putting system in operation?

Q7. With reference to lifeboats, Sketch and describe:

A.  The handbrake used for lowering and state how it may be tested.

B. The centrifugal brake and method of testing.

C. A roller ratchet and the method of testing;

D. Why is ratchet incorporated into the system;

Q9. Write short note on the followings –

A. Metal – locking;

B.TIG and MIG welding;

C. Brazing;

D. Soldering.