MEK General November 2022 MEO Class 2 Written Questions
2. With respect to bunkers handling on ships using LNG as alternative fuel, discuss the following:
(a)How are the bunkers taken onboard ships tanks?
(b) Discuss the check lists, arrival checks and factors to be considered for bunkering?
(c) Risk analysis methodology to ensure safe bunkering operations?
(d) Explain how the bunker Is prepared and used onboard the engines?
3. a) Sketch a transmission shaft coupling which enables the propeller shaft to be withdrawn outboard.
b)(I) Describe the coupling and the method of fitting and dismantling
(II ) State how the grip of the coupling can be checked when fitted
(iii) State what safety precautions should be taken when dismantling the couple.
4. Exhaust gas cleaning system is one of the systems used onboard ship to reduce sox emissions
(a) Briefly discuss various types of exhaust gas cleaning system used on board ship
(b) what all data to be monitor and recorded when IGCS is in used to ensure that system meets all IMO regulations
(c) what action you would take a second engineer if the system stopped working
5. A new vessel exhibits severe aft end vibration
(a) As a second engineer officer, outline a procedure to investigate and identify the source of vibration
(b) suggest possible remedies to obviate or reduce aft end vibration
6. Briefly describe the test made on a piece of metal to determine its suitability for using engineering. Explain clearly what is mean by any four of the following metallurgical terms
(a) work hardening
(b) case hardening
(c) Annealing
(d) Normalizing
(e) Nitriding
7. (a) Sketch a ships indirect refrigeration system arranged for cooling containers stored in stacks in the hold
(b) describe the refrigeration system sketch in (a)
(c) state the advantages and disadvantages of the system described in (a) compared with containers with their own refrigeration self contained units
8. (a) Sketch diagrammatically an auxiliary boiler automatic combusting control system and explain how it operates
(b) Specify how fail safe conditions are ensured
(c) How the master controller follows steam pressure variations and air fuel ratio is adjusted
9. (a) Explain electrochemical reactions and the difference between oxidation and reduction electrochemical reactions with examples. which reactions occurs at the anode and cathode
(b) Explain galvanic corrosion and discuss the different procedures to prevent it
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