MEP-Apr-2021
Q1. Under Continuous survey of machinery (CSM) bottom end bearing of a large 2stroke slow speed engine is due for the survey;
A. As 2nd engineer, explain the procedure involved in the 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 tests are carried out on completion of survey and re-assembly.
Q2. With respect to hydraulic Ram steering gears; A. What emergency locking device can be used in order to speedily bring the steering gear to rest? State one reason the best angular position to lock the steering gear. B. Use a simple sketch to show where the Jumping (top) and wear down (bottom) rudder carrier ring clearances can be measured. Indicate what clearances you would expect with a new steering gear; C. State the consequences of the wear down clearances being reduced to less than zero.
Q3. With the aid of a simple sketch, explain the “trouble spots” in a basic air-conditioning unit with reference to your sketch, explain the following: - i. How the problem of the increase in humidity of cooled air is overcome? ii. How discomfort caused by the excessive drying effect of heated air is overcome?;
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 2nd engineer would adopt with respect to the following A. Contractors working on CO2 system; B. Understanding between the 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 the system in operation?
Q5. Describe the procedure for overhauling a boiler safety valve and explain using sketches where necessary, those parts, which require close attention. Also, describe the procedure setting of boiler safety valves.
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; D. State the important checks to be made before and after fitting cylinder liner.
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 systems.
Q8. Describe the procedure to be undertaken when, upon a routine schedule for changing the fuel injector on the main engine, it is found that the injector body is seized and cannot be removed by conventional means.
Q9. While carrying out ship’s hull inspection, describe the various defects and corresponding repairs that might be expected in shell plating, Fore end of the ship, the aft end of the ship, openings in shell plating, Rudder, Propeller, and stern tube.
Q2. With respect to hydraulic Ram steering gears; A. What emergency locking device can be used in order to speedily bring the steering gear to rest? State one reason the best angular position to lock the steering gear. B. Use a simple sketch to show where the Jumping (top) and wear down (bottom) rudder carrier ring clearances can be measured. Indicate what clearances you would expect with a new steering gear; C. State the consequences of the wear down clearances being reduced to less than zero.
Q3. With the aid of a simple sketch, explain the “trouble spots” in a basic air-conditioning unit with reference to your sketch, explain the following: - i. How the problem of the increase in humidity of cooled air is overcome? ii. How discomfort caused by the excessive drying effect of heated air is overcome?;
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 2nd engineer would adopt with respect to the following A. Contractors working on CO2 system; B. Understanding between the 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 the system in operation?
Q5. Describe the procedure for overhauling a boiler safety valve and explain using sketches where necessary, those parts, which require close attention. Also, describe the procedure setting of boiler safety valves.
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; D. State the important checks to be made before and after fitting cylinder liner.
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 systems.
Q8. Describe the procedure to be undertaken when, upon a routine schedule for changing the fuel injector on the main engine, it is found that the injector body is seized and cannot be removed by conventional means.
Q9. While carrying out ship’s hull inspection, describe the various defects and corresponding repairs that might be expected in shell plating, Fore end of the ship, the aft end of the ship, openings in shell plating, Rudder, Propeller, and stern tube.
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