MEP-Apr-2021(Mum)
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 reference to Main Engine Fuel Pumps; (a) Explain how the setting of a variable injection timing fuel pump is checked and adjusted. (b) State why it may be necessary to adjust the settings of a variable injection timed fuel pump.;
Q3.Write short note on the followings – A. Metal – locking; B.TIG and MIG welding; C. Brazing; D. Soldering.;
Q4. A. With the aid of a simple sketch, explain the “trouble spots” in a basic air-conditioning unit. B. 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?
Q5. With reference to Auxiliary boiler safety valve; A. Describe with the aid of Sketch the safety valve for an auxiliary boiler; B. Identify with reasons. The parts that require particularly close attention during overhaul; C. Describe how the safety valves are reset after an overhaul.
Q6. Explain how EACH of the following hull defects should be dealt with; A. A cracked weld; B. A severe indentation in way of a frame; C. Surfaces suffering from general corrosion although the extent of wastage does not warrant plate replacement; D. A bilge head fractured at the forward end.
Q7. What is the Rocking test of Deck Crane? Explain the procedure of the rocking test. Tabulate and indicate fault finding procedure. What is the action taken if the deviation is out of the limit?
Q8. 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.
Q9. Using sketches explain the difference between Pulse and constant pressure turbocharger systems. A. In the event of a Pulse turbocharger becoming inoperative due to mechanical breakdown explain the modifications required to allow the engine to operate safely. B. State the instruction you as the second engineer would issue regarding the additional engine monitoring requirements following the steps taken in (a).
Q2. With reference to Main Engine Fuel Pumps; (a) Explain how the setting of a variable injection timing fuel pump is checked and adjusted. (b) State why it may be necessary to adjust the settings of a variable injection timed fuel pump.;
Q3.Write short note on the followings – A. Metal – locking; B.TIG and MIG welding; C. Brazing; D. Soldering.;
Q4. A. With the aid of a simple sketch, explain the “trouble spots” in a basic air-conditioning unit. B. 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?
Q5. With reference to Auxiliary boiler safety valve; A. Describe with the aid of Sketch the safety valve for an auxiliary boiler; B. Identify with reasons. The parts that require particularly close attention during overhaul; C. Describe how the safety valves are reset after an overhaul.
Q6. Explain how EACH of the following hull defects should be dealt with; A. A cracked weld; B. A severe indentation in way of a frame; C. Surfaces suffering from general corrosion although the extent of wastage does not warrant plate replacement; D. A bilge head fractured at the forward end.
Q7. What is the Rocking test of Deck Crane? Explain the procedure of the rocking test. Tabulate and indicate fault finding procedure. What is the action taken if the deviation is out of the limit?
Q8. 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.
Q9. Using sketches explain the difference between Pulse and constant pressure turbocharger systems. A. In the event of a Pulse turbocharger becoming inoperative due to mechanical breakdown explain the modifications required to allow the engine to operate safely. B. State the instruction you as the second engineer would issue regarding the additional engine monitoring requirements following the steps taken in (a).
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