MEP-March-2019
Q1. Describe TWO methods of tracing a superficial crack in a marine machinery component; Explain the procedure for arresting the propagation of a crack in a machinery component.
Q2. With respect to the operation of a two-stage air compressor. Explain A. The causes of the occasional lifting of the 2nd stage relief valve. B. Breakage of valve plates. C. Puncture of the bursting disc of 1st stage intercooler. D. Noticeable reduction in the capacity of the compressors over a period of time.
Q3. Enumerate the maintenance routines carried out for the proper functioning of the following systems: A. Water hyper mist system B. Smoke detection system C. Quick closing valves D. Fire hydrants and hoses.
Q4. Abnormal vibration has been observed in an HFO purifier while in operation. Explain the areas you plan to investigate for rectifying the faults and put the purifier back to normal operations keeping in view that no reduction in vibration has been noticed even after desludging the purifier couple of times.
Q5. What is the Rocking test of Deck Crane? Explain the procedure of the rocking test. Tabulate and indicate a fault-finding procedure. What is the action taken if the deviation is out of the limit?
Q6. 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 setting of a variable injection timing fuel pump.
Q7. A. State the circumstances owing to which it may be necessary to renew a cylinder liner; B. Explain how the cylinder liner is removed and fitted back; C. State the important checks to be made on the engine before after fitting.
Q8. Write short notes on the following:
(A). Magnetic Particle Inspection (MPI)
(B). Ultrasonic Testing (UT)
(C). Radiographic Testing (RT)
Q9. 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;
Q2. With respect to the operation of a two-stage air compressor. Explain A. The causes of the occasional lifting of the 2nd stage relief valve. B. Breakage of valve plates. C. Puncture of the bursting disc of 1st stage intercooler. D. Noticeable reduction in the capacity of the compressors over a period of time.
Q3. Enumerate the maintenance routines carried out for the proper functioning of the following systems: A. Water hyper mist system B. Smoke detection system C. Quick closing valves D. Fire hydrants and hoses.
Q4. Abnormal vibration has been observed in an HFO purifier while in operation. Explain the areas you plan to investigate for rectifying the faults and put the purifier back to normal operations keeping in view that no reduction in vibration has been noticed even after desludging the purifier couple of times.
Q5. What is the Rocking test of Deck Crane? Explain the procedure of the rocking test. Tabulate and indicate a fault-finding procedure. What is the action taken if the deviation is out of the limit?
Q6. 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 setting of a variable injection timing fuel pump.
Q7. A. State the circumstances owing to which it may be necessary to renew a cylinder liner; B. Explain how the cylinder liner is removed and fitted back; C. State the important checks to be made on the engine before after fitting.
Q8. Write short notes on the following:
(A). Magnetic Particle Inspection (MPI)
(B). Ultrasonic Testing (UT)
(C). Radiographic Testing (RT)
Q9. 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;
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